The Roanoke River crested almost 6 feet (1.8 meters) above flood stage on May 21st, sending water rushing onto some roadways and making them impassable. 1. These six regions differ spatially from the nine climatic regions of the National Climatic Data Center. Unfortunately, in early June the total area experiencing at least abnormally dry conditions began to increase. Storm reports noted numerous road closures, multiple water rescues, some evacuations, and a few homes taking on water. This figure shows the rate of change in total annual precipitation in different parts of the United States since the early 20th century (since 1901 for the contiguous 48 states and 1925 for Alaska). On February 6th, a slow-moving low pressure system produced over 5 inches (127 mm) of rainfall across portions of western North Carolina and Upstate South Carolina. In May, a Midland, Michigan dam failed due to heavy rains over three days, 17th-19th. Prolonged dryness in April and May led to an outbreak of numerous wildfires across Florida. What is Illinois average yearly rainfall? By the middle of May, the coverage in drought was significantly reduced across Florida, but areas of severe drought remained in southwestern Florida and coastal Alabama. Monthly: 1981-2010 normals. Popular places in the United States of America Power outages lasted five days in some locations. Western Australia's climate has changed over the last century, particularly over the last 50 years. Kentucky was the wettest state with 9.97 inches (253 mm) above normal which ranked as the 8th wettest in its history. Back-to-back storms from February 5 to 8 brought an extreme mix of weather conditions to the Northeast. In a break from recent years, average annual temperatures were generally above normal across the High Plains region, with widespread departures of up to 2.0 degrees F (1.1 degrees C). Andaman and Nicobar Islands: Andaman and Nicobar Islands: 2,967: 2. For the entire United States, excluding Hawaii and Alaska, the average amount of moisture falling as rain and snow is 30.21 inches (767 millimetres). Several tropical systems affected the Northeast this year, with Tropical Storm Fay, Tropical Storm Isaias, and Tropical Storm Zeta being particularly noteworthy. As the derecho headed east the winds eased slightly but continued to do significant damage in the other states affected. The most up-to-date temperature and precipitation data is available through Climate at a Glance. Near record warmth was found throughout Arizona with both Phoenix (77.2 F [25.1 C], 2.1 F [1.2 C] above normal) and Tucson (72.6 F [22.6 C], 3.2 F [1.8 C] above normal) reporting the second warmest years on record. March was mainly warmer and wetter than normal, with every state experiencing warmer than normal temperatures and every state except Louisiana experiencing wetter than normal conditions. In parts of North Carolina, the soybean harvest was delayed due to heavy rainfall and flooding from Eta, while newly seeded livestock pastures sustained damage. Data from the early 20th century are somewhat less precise because there were fewer stations collecting measurements at the time. Drought conditions exhibited a slightly cyclical pattern throughout the Southern Region during 2020, but conditions primarily deteriorated as the year progressed. On November 11th and 12th, the interaction of moisture surging northward from Tropical Storm Eta and an approaching cold front produced 3 to more than 8 inches (76 to more than 203 mm) of rainfall across much of the Carolinas and Virginia. A lock (LockA locked padlock) or https:// means youve safely connected to the .gov website. Straight-line winds of up to 80 mph (36 m/s) caused extensive damage in several locations. Caribou, ME, also had significant snow during the 2019-2020 season receiving 146 inches and ranked ninth highest for any season on record. Above-average annual precipitation was observed from the Great Lakes and Plains to the Southeast and Mid-Atlantic regions. U.S. average annual temperature 1895-2021, Major U.S. cities with the most rainy days 1981-2010, U.S. average monthly temperature 2019-2022. The map of California shows groundwater level conditions across the state by comparing the most recent measurements There were five fatalities and 65 injuries associated with this tornado, many of which occurred in the hardest hit areas just south of Estill, SC. In addition, Burlington, Vermont, tied its greatest number of June days with a high of at least 90 degrees F (32 degrees C). Its temperatures easily soar into the 100s F (about 48 C) in the summer, and average annual rainfall is only about 2 inches (50 mm). Welcome to California Water Watch! To the west, West Virginia saw flood-inducing heavy rain, with the greatest totals approaching 4 inches (102 mm). The map on this page details the 30-year annual rainfall average for the San Diego County region. Every state except for Oklahoma experienced warmer than normal temperatures while every state except for Texas experienced wetter than normal conditions. Between 3 and 6 inches (76 to 152 mm) of rain fell in a two-hour period at rainfall rates of 3 or more inches (76 mm) per hour. Sponsored by TruthFinder The southern region of the state has summers ranging from 90F to 100F, while the northern part has milder summers ranging from 72F to 82F. Many waterways in drought areas across the Northeast saw below-normal streamflow during summer and the first half of fall. Summer rain is usually more intense as it falls after the summer heat leads to the build-up of thunderstorms. In Spokane, which marks the eastern edge of the state, rainfall averages 15 to 30 inches (38 to 76 cm) a year. temperatures present several challenges to managing the states water supply. The heavy, wet snow and strong winds downed trees and caused more than 266,000 customers in Maine, around a third of the state, to lose power. 2022. These include reservoirs and melted snowpack. This allows us to see how well the snowpack is doing to date, as well as how much snow may still be needed to reach the average peak snowpack (i.e., April 1st snowpack). Many of the same locations that saw above normal and record high temperatures also experienced below normal precipitation and in some cases record dryness. Below-average temperatures occurred across parts of the Southeast Interior region. Low reservoir levels and streamflows were contributing factors to the widespread drought intensification in 2020 throughout the West. Almost the entire Northeast saw below-normal snowfall during spring and the snow season (October through May). (Weather station: Kearney Municipal, USA). This led to rapid rises and moderate flooding on some waterways. Some cattle farmers also thinned their herds earlier than usual. The plot below aggregates this same data to show how the cumulative statewide snowpack is tracking relative to the historical average. During the rest of spring and beginning of summer, there was improvement in the total area experiencing drought with several areas improving to the point of only containing abnormally dry conditions. Well below normal precipitation was widespread throughout central and northern California with most stations reporting the second or third driest year on record. Wind gusts of up to 62 mph (28 m/s) accompanied the storm in coastal areas, where minor to moderate flooding occurred. The greatest storm snow totals approached 21 inches (53 cm). Mean Temp: 55 F. To access data, select Parameter: Precipitation, Month: December, and Time Scale: 12-Month. Iowa had its 3rd driest August in history. In addition, storm surge flooding reached 5.6 feet (1.7 meters) in Pensacola, which is the third highest storm surge ever recorded in the city. Below-average precipitation fell across much of the West, northern Plains and parts of the Northeast. Across the region, there were hundreds of closed roads, stranded vehicles, water rescues, and buildings affected by flooding. The contiguous U.S. average annual precipitation was 30.28 inches, which is 0.34 inches above the long-term average, ranking in the middle third of the historical record. Based on the 2-digit Hydrologic Unit Code watersheds, the California region had the lowest SWE at 76% of normal. El Paso's average rainfall from the thirty year period (1981-2010) was 9.71". The year 2020 proved to be a warm year for the Southern Region. Although the season was below average, it was more than the 1993 to 2020 minimum of 23,000 acres set in 2004. From July 29th through the 30th, Tropical Storm Isaias impacted parts of Puerto Rico, with over 9 inches (229 mm) of rainfall recorded in Juncos. 2020 was a year of transition for the High Plains region, as cool, wet conditions over the past two years gave way to a warmer and drier regime. In many fields in southern Alabama, Hurricane Sally blew down the cotton crop when bolls had yet to open. Statista. The damage pattern suggested that this tornado may have had multiple vortices, which can occur with the strongest tornadoes. 2020 also marks the sixth consecutive year (2015-20) in which 10 or more separate billion-dollar disaster events have impacted the U.S. What is the formula for calculating rainfall? This years snow season (2020-2021) kicked off with several early snowfalls, starting in September. Roanoke also observed its longest streak of 3 consecutive days with at least 2 inches (51 mm) of precipitation. Early on December 25th, snow flurries were reported as far south as Charleston International Airport, SC, which is only its second trace of snowfall on Christmas Day since 1938. The plot below aggregates this same data to show how the cumulative statewide snowpack is tracking relative to the historical average. Average Yearly Precipitation for States (rain & snow) The amounts listed below are averages for each state. This switch from wet to dry was so pronounced that some locations went from having a top 10 wettest year in 2019 to a top 10 driest year in 2020. During the summer, drought conditions expanded to include over 70 percent of Wyoming and nearly all of Colorado. Ohio ranked as the 7th warmest in its history and Michigan ranked 10th. During the fall, some Florida citrus growers reported extremely heavy fruit drop within their groves, which was partially attributed to premature blooming during the winter 20192020 season as well as a persistence of heavy rainfall throughout the year. In the image below, we've compared the U.S. annual average temperature during each Normals period to the 20 th -century average (1901-2000). Further east, in Californias Central Valley, Sacramento received 7.86 in (199.64 mm, 39% of normal) making it the fifth driest year since 1878. June was cooler than normal for every state except Oklahoma and Texas, while precipitation was mixed, as three states (Arkansas, Louisiana, and Mississippi) experienced wetter than normal conditions while three states (Oklahoma, Tennessee, and Texas) experienced drier than normal conditions. The U.S. Drought Monitor released on December 3 showed 21 percent of the Northeast in an extreme, severe, or moderate drought and 33 percent as abnormally dry. A streak of 14 straight weeks, from mid-January to mid-April, set a new record with no abnormally dry area in the region. Overview and forecasts on trending topics, Industry and market insights and forecasts, Key figures and rankings about companies and products, Consumer and brand insights and preferences in various industries, Detailed information about political and social topics, All key figures about countries and regions, Market forecast and expert KPIs for 600+ segments in 150+ countries, Insights on consumer attitudes and behavior worldwide, Business information on 60m+ public and private companies, Detailed information for 35,000+ online stores and marketplaces. This map shows relative values of estimated soil moisture at a depth of 100 cm, as calculated from satellite-based observations. In drier seasons, we rely on other sources of water. to incorporate the statistic into your presentation at any time. The seven other states ranked between 13th and 26th in their respective histories. Visibility: 10 mi. In the United States in 2021, Mississippi recorded 66.84 inches of precipitation, the highest amount of within the contiguous 48 states that year. National Oceanic and Atmospheric Administration. Simpson South Average Number of Days With Temperatures Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann; 40C . The indicator extends through 2021. This dryness eased by mid-February, with the Northeast becoming free of abnormal dryness for the first time since July 2019. The coldest temperature observed during the year was -4 degrees F (-20 degrees C), which was recorded on Mt. In southeastern Pennsylvania, Chester Creek rose to its fourth highest water level on record, exceeding its previous fourth highest level set days earlier. Show publisher information Some parts will get less. Below the tables there's a map that allows you to visually compare the annual average precipitation totals among states. A rare tornado outbreak occurred on February 7 in Maryland where five tornadoes touched down: an EF-0 and four EF-1s. Further south, Stockton, California reported its warmest year on record (in the past 72 years) at 64.8 F (18.2 C), 3.5F (1.9 C) above normal. February US Release: Wed, 8 Mar 2023, 11:00 AM EST, Alabama, South Carolina, North Carolina, Virginia, West Virginia, Maryland and Delaware, NOAA's Residential Energy Demand Temperature Index (REDTI), contiguous U.S. average annual precipitation, lowest known mean sea level pressure on record, nine climatic regions of the National Climatic Data Center, Northeast Regional Climate Center Home Page, Southeast Regional Climate Center Home Page, High Plains Regional Climate Center Home Page, Southern Regional Climate Center Home Page, Western Regional Climate Center Home Page. These regional anomalies are then averaged together in proportion to their area to develop national results. Allentown, Pennsylvania, and Harrisburg, Pennsylvania, had their least snowy seasons (October through May) on record. The heavier intensities occur along the windward slopes of the mountains. Just as precipitation patterns vary across the world, however, so do the precipitation effects of climate change. April was primarily cooler and wetter than normal, with every state except for Louisiana and Texas experiencing cooler than normal temperatures while every state except for Oklahoma and Texas experienced wetter than normal conditions. However, from the 12th through the 16th, Sally impacted parts of Florida with numerous reports of localized flooding, resulting in several road closures, stalled vehicles, and water entering multiple residences and businesses. Precipitation was drier than normal across all six states. Precipitation was primarily wetter than normal (Texas was slightly drier than normal), with Mississippi and Tennessee experiencing their sixth-wettest and eighth-wettest winters on record, respectively. In addition, two weak (EF-0 or EF-1) tornadoes snapped trees and damaged houses in northern Maryland. Everyone is welcome to research, learn, and stay Statewide annual precipitation has ranged from a low of 28.9 inches in 1930 to a high of 64.0 inches in 2018. Pressure: 30.04 "Hg. In fact, by the end of September, all of Rhode Island was in an extreme drought for the first time in the U.S. Drought Monitors history (since 2000). Multiple residences were destroyed by this fire, and many residents were told to evacuate the area. Californias annual precipitation can vary greatly from year to year and region to region. Caribou, Maine, received only 0.88 inches (22.35 mm) of precipitation during June, tying as the driest June on record. For instance, the Perkiomen Creek at Graterford, Pennsylvania, reached 19.14 feet (5.83 m), nearly a foot (0.30 m) higher than its previous record from 1935. The Northeast wrapped up 2020 just barely on the dry side of normal, seeing 43.61 inches (110.77 cm) of precipitation, 98 percent of normal. On the northern side of the city, Frankford Creek reached moderate flood stage for the second time in a week. With an astounding average annual rainfall of 11,871 millimeters, the town of Mawsynram in northeast India is Earth's wettest place. Low streamflow and warm water temperatures prompted several states to take actions to protect aquatic species. The August Complex, SCU Lightning Complex, Creek Fire, LNU Lightning Complex and the North Complex burned nearly 2.5 million acres in all. During the spring, wet conditions across portions of the Southeast disrupted the application of herbicides, fertilizers, and nutrients to fields. Soc. For example, irrigation and labor costs exceeded $50,000 at a Massachusetts farm and were around $30,000 at a New Hampshire farm. Mitchell, NC on December 26th. Issues with extreme wetness carried over into 2020 in parts of the Northern Plains, however. Hurricane Laura was the worst of the seven, making landfall as a Category 4 hurricane. During the summer, a persistent influx of tropical moisture and high humidity across much of the Southeast increased disease pressure on crops, with white mold and fungus reported on peanuts in Georgia and Florida. State of the climate in 2020. Northern Delaware experienced some of its worst flash flooding in at least 15 years. Open to the Public! Annual rainfall is the sum of daily rainfall, that can be calculated from raingauge records. There were road closures, some evacuations, and reports of water in houses. Home | Privacy & Cookies | Contact | About. The six Midwest states with above-normal precipitation in 2020 all exceeded their normal annual precipitation by November, and Kentucky did so in October. 1 NOAA (National Oceanic and Atmospheric Administration). Rainfall for the year was above average for Australia as a whole, with the national total rainfall for 2021 being 9% above the 1961-1990 average at 509.7mm (the 1961-1990 average was 466.0 mm). Phoenix has the hottest climate of all major U.S. cities. According to the U.S. Drought Monitor (USDM), drought coverage expanded throughout much of 2020 with a minimum CONUS extent of 9.6 percent occurring on February 18 and maximum coverage of approximately 50 percent on December 22. normal or average rainfall is the amount of precipitation that we expect per year (in a given area). The wettest locations were found across much of Virginia, the Carolinas, Alabama, northern and central Georgia, the western half of the Florida Panhandle, southeastern Florida, and Puerto Rico. The map of California shows groundwater level conditions across the state by comparing the most recent measurements Drought conditions continued to worsen across much of the region during the fall as precipitation deficits mounted. Annual snowfall accumulations were below average across much of the Southeast region, particularly in the higher elevations of North Carolina and Virginia. Several notable widespread wind events occurred in the Northeast this year. Abnormal dryness was next introduced during the second half of May, this time in parts of New York and northern New England. The event, which qualified as a derecho, caused widespread damage, downing trees and wires, knocking out power to more than 500,000 customers, and causing four deaths. During summer and fall, groundwater levels were also well below normal in many drought areas. With 1.1 inches (28 mm) of snow on the 25th, Asheville, NC (18692020) observed its fifth highest snowfall on Christmas Day since records began 151 years ago. Meanwhile, for those looking to get out and enjoy the weather, fires, along with poor air quality from the smoke, impacted a range of recreational activities. how this years temperatures compare to what has been observed historically. From September through early October conditions remained relatively steady, but by the end of October conditions began to deteriorate rapidly. Pecan production was substantially impacted for this years crop, as many immature nuts were blown to the ground. Higher than normal In addition, there were two EF-0 tornadoes, one in eastern New York and one in eastern Massachusetts. Earlier this spring, NOAA released the 1991-2020 U.S. Simpson South Annual Temperatures & Rainfall. The map of California shows In Georgia, the blueberry crop was badly damaged by severe weather in April. Mean rainfall in Australia 2021, by state. The record of 163 consecutive days was set last year. At General Santos City in Cotabato, the average annual rainfall is only 978 millimeters. Parts of the Dakotas are as dry as New Mexico on an annual average basis, and yet at first glance, they dont seem nearly so arid, in part because they are also much cooler. Maine had its driest September on record. Much of New England experienced the emergence of drought during the second half of 2020 with marked improvement by the end of the year. Texas experienced landfalls from Hurricane Hanna and Tropical Storm Beta. Due to reduced yields, farmers bought hay to feed livestock, but there were hay shortages and increased prices, with a Vermont farmer spending as much as $20,000 on feed. (February 18, 2022). Even as the winter started, drought conditions continued to expand, which is highly unusual for the High Plains at this time of the year. how this years temperatures compare to what has been observed historically. Directly accessible data for 170 industries from 50 countries and over 1 million facts: Get quick analyses with our professional research service. Allentown, Pennsylvania, had its warmest winter on record. It was the hottest summer on record for Connecticut, Massachusetts, and Rhode Island. Rainfall happens frequently all year round but is slightly higher in the summer months. An early season freeze event occurred in the Upper Midwest on September 8th-11th. Greenville-Spartanburg, SC (18842020) and Hickory, NC (19492020) observed their wettest February day on record, with 5.36 and 5.31 inches (136 and 135 mm) of precipitation, respectively. Most of the drought is focused on the central islands of Molokai, Maui, Kahoolawe, and Lanai with severe and extreme drought present. Phoenix Sky Harbor Airport received 4.20 inches of rain during the monsoon season, the most since 6.34 inches fell in 2014 and third-most in the past two decades. A complex storm system brought severe weather and snow to the Northeast in early April. Oklahoma experienced two months that were top-10 wettest on record (fifth-wettest March on record, sixth-wettest January on record). The only streak longer was during the first 32 weeks of 2019. The contiguous United States has a big range of climates and microclimates. Temperature plays a large role in Californias annual water conditions. Severe weather in the region was spread across many months, however the most newsworthy was a severe derecho on August 10th. Although drought has impacted parts of the region in recent years, such as the 2017 Northern Plains drought, this is the most expansive drought in the region since 2012-2013. In Kansas, one may expect, on a yearly basis, an average of 230 days with clear skies. Ten states across the Southwest, Southeast and East Coast had their second-warmest year on record. Statewide annual precipitation has ranged from a low of 31.56 inches in 1964 to a high of 55.71 inches in 2011. Plains snowpack was variable throughout the season. Annual precipitation totals were well above average across the Southeast region, with widespread areas of exceptional wetness occurring in every state and Puerto Rico. Anomalies for the contiguous 48 states and Alaska have been determined by calculating average precipitation anomalies for areas within each state based on station density and topography. Click the map to enlarge. In addition, for the first time on record, Newark did not reach 70 degrees F (21 degrees C) during the month of April. In addition, December 17 became the snowiest December day on record for Binghamton, with 26.4 inches (67.1 cm), and Albany, New York, with 19.7 inches (50.0 cm). Warmer areas are orange and red. Storm reports also indicated that hail accumulation of several inches was plowed off roads in western West Virginia. Average yearly precipitation for Illinois varies from 48 inches or 1,220 mm at the southern tip to 35 inches or 890 mm in the northern portion of the state. Two-day snowfall totals ranked as the largest on record for any month at Binghamton, New York, which saw 40.0 inches (101.6 cm) of snow, and Williamsport, Pennsylvania, which picked up 24.7 inches (62.7 cm).