For example, in New Hampshire, an emergency drought law banning outdoor fires near public woods was in effect for a month, and several communities and the White Mountains National Forest had burn bans. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time. An early season freeze event occurred in the Upper Midwest on September 8th-11th. The rapid drop in temperatures, from warm conditions just prior to the freeze, exacerbated the situation. Colorado saw its top three largest fires in 2020 which were not fully contained until late November or early December. Monthly temperature, precipitation and hours of sunshine. From April 12 to 13, a storm system produced damaging winds in the Northeast. There were approximately 4,523 severe weather reports throughout the Southern Region for 2020, with 394 tornado reports, 1,310 hail reports, and 2,819 wind reports. Climate Utah - All state rankings are based on the period spanning 1895-2020. Although presented side-by-side with the county-level averages, the Hawaiian data are station-specific averages and should not be considered representative of county-level climate. While agricultural and livestock production was satisfactory across much of the Southeast during the year, exceptional wetness and numerous landfalling tropical cyclones did produce some significant impacts. Five of the six warmest years on record at Hilo have occurred since 2015. Snow-water equivalent (SWE) was near-normal to much-above normal for most of the region, with February 1st SWE as high as 200% of normal in Utah and southwestern Wyoming and 150% of normal in Colorado and the rest of Wyoming. Monthly temperature, precipitation and hours of sunshine. Wilmington, Delaware; Huntington, West Virginia; and Charleston, West Virginia, set/tied their greatest number of March days with measurable precipitation. After making landfall near Creole, LA on October 9th, the remnants of Hurricane Delta impacted parts of the Southeast with heavy rain and flooding. Hurricane Zeta made landfall near Cocodrie, LA on October 28th, with a wind gust of 91 mph (41 m/s) reported in Mobile, AL. North Carolina had its second-wettest year on record during 2020 and Virginia was third wettest. WebStatewide Average Average Precipitation for 77 Mountain SNOTEL Sites (Through 0212312023) 2023 Aug Jul Jun May Apr Mar Feb Jan Dec Nov Oct 30-Yr Avg. Issued 12 January 2021: Unless otherwise noted, temperature and precipitation rankings refer to a 126-year period of record (1895-2020), and long-term average refers to the 20th century (1901-2000) value. A climate graph showing rainfall, temperatures and normals. 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. The U.S. Drought Monitor released in June 25 showed 16 percent of the Northeast in a moderate drought and 26 percent was abnormally dry. Temperatures across the region for 2020 averaged 1.2 degrees F (0.7 C) above normal. Because the newest years estimate is released the following year, the current years population numbers may reflect the nearest year we have data for. Storm reports noted numerous road closures, multiple water rescues, some evacuations, and a few homes taking on water. From an agricultural perspective, drought caused many impacts, especially for livestock and winter wheat producers. Plains snowpack was variable throughout the season. While 25 long-term stations observed average daily maximum temperatures that were ranked within their five warmest values on record, more than four times the number of stations (102) observed average daily minimum temperatures that were ranked within their five warmest values on record. As much as 5 inches (127 mm) of rain fell in a two-hour period on September 10, leading to flash flooding in Washington, D.C., and surrounding suburbs. This EF-4 tornado, with a path length of more than 24 miles (39 km) and a maximum path width of 1,300 yards (1,189 meters), damaged and destroyed many residences, including mobile and single-family homes. The 2020 fire season was very active and ramped up in mid-summer and extended well into autumn. It was only the second time since 1885 that Philadelphia recorded no snowfall during spring. Through the end of summer, most of the Southeast region remained drought-free, except for a few short-lived pockets of moderate drought in portions of northern and coastal Virginia, Georgia, southeastern Alabama, and west-central Florida. There were numerous road closures and several water rescues. Numerous fallen trees, mudslides, and river flooding were reported in southwestern Puerto Rico, according to local emergency management officials. This value will be evaluated by the State Climate Extremes Committee later in 2021 to determine if a state record for lowest mean sea level pressure will be established. Climate Data. There were 8 fatalities from Hurricane Zeta, including in Acworth, GA where a large oak tree was uprooted and fell onto a mobile home, killing a man. All state rankings are based on the period spanning 1895-2020. The largest hailstones observed during the year were teacup-sized (i.e., 3-inch or 76-mm diameter), which were reported in Vernon, AL on March 29th, Darlington County, SC on May 5th, and Lake Mary, FL on May 21st. This year, Utah has seen an intense winter all these storms have been keeping snowplows busy and, in fact, the Utah Department of Transportation has exceeded its budget on snow removal. On the 9th, Fort Lauderdale, FL observed its third wettest November day on record, with 7.30 inches (185 mm) of precipitation. The coldest temperature observed during the year was -4 degrees F (-20 degrees C), which was recorded on Mt. The path taken by the storm system was one of the furthest to the west and north in history. We were unable to display data for this section. Burn bans were enacted in several locations. On June 26th, Tampa, FL tied its warmest daily maximum temperature for any month on record, at 99 degrees F (37.2 degrees C). Meanwhile, parts of northwestern Alaska, the Aleutians and the central Gulf regions received below-average precipitation for the year. Mitchell (139.94 inches, 3,554 mm). Seven major climate sites including Philadelphia, Pennsylvania; Baltimore, Maryland; and Atlantic City, New Jersey, tied their record for least snowy spring (March through May). Population numbers are calculated by grouping county-level populations Every state except for Arkansas experienced warmer than normal temperatures while every state except for Oklahoma and Texas experienced wetter than normal conditions, with Texas experiencing its seventh-warmest summer on record. Mount Washington, New Hampshire, had its highest August wind gust of 147 mph (66 m/s). Back-to-back storms from February 5 to 8 brought an extreme mix of weather conditions to the Northeast. On January 31st, Charlotte, NC continued its record of reporting at least a trace of snow in every winter season since 1878. In contrast, places such as Boulder, CO, experienced its snowiest season on record with 152 inches of snow. The 8.59.5 feet (2.62.9 meters) of storm surge destroyed many sand dunes and sea turtle nests in Oak Island, NC. differences. Several Midwest states had record yields for corn and/or soybeans. Meanwhile, northern locations received heavy snow, with the greatest totals of more than 12 inches (30 cm) in New York and northern New England. Prior to this, there had only been four February tornadoes in Maryland between 1950 and 2019. There were 8 fatalities attributed to Hurricane Sally, including a 45-year-old female kayaker who had gone missing at the height of the storm. Unfortunately, in early June the total area experiencing at least abnormally dry conditions began to increase. The result was strong wind gusts for the entire Northeast and a major late season snowstorm for parts of Maine and New Hampshire from April 9 to 10. Station Data. Annual losses in 2020 exceeded $95 billion, the fourth highest cost on record. This was the eighth straight year above the 1981-2010 normal for the region. Pasture and rangeland conditions were rated very poor (the lowest level) for 70 to 90 percent of southern New England, while 10 percent of Pennsylvanias corn crop was rated very poor, making it some of the worst corn condition ratings in the country. 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. Hundreds of thousands of customers lost power in the Northeast, including more than 115,000 customers in Massachusetts. WebThroughout the year, in Mantua, there are 117.9 rainfall days, and 18.39" (467mm) of precipitation is accumulated. Annual average temperatures for the twelve Northeast states ranged from 1.9 degrees F (1.1 degrees C) above normal in West Virginia to 2.8 degrees F (1.6 degrees C) above normal in Massachusetts and Rhode Island. Meanwhile, another of the wettest cites in the state at the southern extent of Southeast Alaska, Ketchikan, logged 175.10 in (4447.54 mm, 124% of normal) making the 11th wettest year on record since 1914. There were two months (March and November) where the entire region experienced a top-10 warmest month on record. Lower than usual streamflow on the Hudson River in New York in October led to increased sodium levels in Poughkeepsies water supply. Numerous roads in the urbanized corridor of southeastern Florida became impassable due to flooding, with many reports of stalled or submerged vehicles. In November, every state experienced warmer than normal conditions, with Texas experiencing its fourth-warmest November on record, Oklahoma experiencing its eighth-warmest November on record, and the region as a whole experiencing its ninth-warmest November on record. Of this 24-hour precipitation total, Key West observed 3.95 inches (100 mm) in a single hour, which is its second highest hourly rain rate ever recorded. Rivers and Lakes. Temperatures rebounded in the summer, with most states in the High Plains ranking in the top 15 warmest summers on record. Multiple residences were destroyed by this fire, and many residents were told to evacuate the area. experiencing similar 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. Web60 50 40 fli 0 30 20 10 2013 2014 2015 Statewide Average Average Precipitation for 77 Mountain SNOTEL Sites (Through 0212312023) 2023 Aug Jul Wisconsin, like the region, has recorded eight straight years above normal. A total of 22 tornadoes were spawned by Isaias, including a rare EF-3 tornado that caused 2 fatalities and 14 injuries in Bertie County, NC on August 4th. Flooding and flash flooding caused fatalities in the Midwest. Low reservoir levels and streamflows were contributing factors to the widespread drought intensification in 2020 throughout the West. In addition, it was the first time on record with no measurable snow in both February and March for Bridgeport, Connecticut; Islip and Kennedy Airport, New York; and Allentown and Harrisburg, Pennsylvania. A historic snowstorm dropped snow on almost every part of the Northeast from December 16 to 17. WebAnnual precipitation averaged across the Midwest was 37.72 inches (958 mm), 0.78 inches (20 mm) above normal. 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. In Alaska, annual temperatures were above normal along the North Slope, in western coastal Alaska, and the Aleutian Islands. Through November 30, and the official end of the Atlantic hurricane season, several records were tied or broken. 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