Delaware Summary
From 1980-2024, there were 35 confirmed weather/climate disaster events with losses exceeding $1 billion each to affect Delaware. These events included 5 drought events, 2 flooding events, 1 freeze event, 7 severe storm events, 8 tropical cyclone events, and 12 winter storm events. The 1980โ2024 annual average is 0.8 events (CPI-adjusted); the annual average for the most recent 5 years (2020โ2024) is 1.6 events (CPI-adjusted).
Disaster Type | Events | Events/โYear | Percent Frequency | Total Costs | Percent of Total Costs |
---|---|---|---|---|---|
Drought | 5 | 0.1 | 14.3% | $500M-$1.0B | 27.8% |
Flooding | 2 | 0.0 | 5.7% | $5M-$100M | 1.1% |
Freeze | 1 | 0.0 | 2.9% | $5M-$100M | 0.4% |
Severe Storm | 7 | 0.2 | 20.0% | $250M-$500M | 9.0% |
Tropical Cyclone | 8 | 0.2 | 22.9% | $1.0B-$2.0B | 32.4% |
Wildfire | -- | -- | -- | -- | -- |
Winter Storm | 12 | 0.3 | 34.3% | $500M-$1.0B | 29.3% |
All Disasters | 35 | 0.8 | 100.0% | $2.0B-$5.0B | 100.0% |
Time Period | Billion-Dollar Disasters | Events/ | Cost | Percent of Total Cost |
---|---|---|---|---|
1980s (1980-1989) | 4 | 0.4 | $100M-$250M | 5.2% |
1990s (1990-1999) | 8 | 0.8 | $500M-$1.0B | 25.5% |
2000s (2000-2009) | 7 | 0.7 | $500M-$1.0B | 23.4% |
2010s (2010-2019) | 8 | 0.8 | $1.0B-$2.0B | 32.7% |
Last 5 Years (2020-2024) | 8 | 1.6 | $250M-$500M | 13.2% |
Last 3 Years (2022-2024) | 4 | 1.3 | $100M-$250M | 4.5% |
Last Year (2024) | 1 | 1.0 | $5M-$100M | 1.6% |
All Years (1980-2024) | 35 | 0.8 | $2.0B-$5.0B | 100.0% |
Event | Type | Begin Date |
End Date |
Summary |
CPI-A djusted Estimated Cost (in Billions) |
Deaths |
---|---|---|---|---|---|---|
Southern Tornado Outbreak and East Coast Storm January 2024 | Severe Storm | January 8, 2024 | January 10, 2024 | Southern tornado outbreak and east coast storm impacted more than a dozen states. At least 39 preliminary tornadoes were clustered around the Florida Panhandle through the Carolinas while hundreds of high wind reports were scattered up the East Coast reflecting damage to homes, businesses, vehicles and other infrastructure. The strongest tornado was an EF-3 that caused significant damage around Panama City Beach, Florida, after an intense waterspout moved onshore. | $2.8 CI | 3 |
East Coast Storm and Flooding December 2023 | Flooding | December 16, 2023 | December 18, 2023 | Powerful east coast storm from Florida to Maine produced widespread impacts from heavy rainfall, flooding, high winds and coastal erosion. The heavy rainfall and snowmelt were amplified by record-high temperatures in the Northeast. | $1.3 CI | 5 |
Northeastern and Eastern Severe Weather August 2023 | Severe Storm | August 5, 2023 | August 8, 2023 | More than one thousand reports of high wind, severe hail or tornadoes across many Northeastern and Eastern states. August 7 was a prolific day of severe weather with damage reports from Georgia to New York. These storms caused impacts to many homes, vehicles, businesses, agriculture and other infrastructure. | $1.7 CI | 4 |
Central and Eastern Winter Storm and Cold Wave December 2022 | Winter Storm | December 21, 2022 | December 26, 2022 | Historic winter storm and powerful arctic front caused significant impact across much of the nation, bringing heavy rains, snow, ice and high winds that sent temperatures plummeting. More than 200 million people were under a winter weather advisory or warning and more than a million customers, from Texas to Maine, were left without power. Buffalo, New York was paralyzed by near hurricane force winds and continuous snow squalls, which contributed to dozens of fatalities in the region. Additional impacts were widespread frozen water pipes that led to extensive water damage in many homes, businesses and to other critical infrastructure. | $9.0 CI | 87 |
Hurricane Ida August 2021 | Tropical Cyclone | August 29, 2021 | September 1, 2021 | Category 4 Hurricane Ida made landfall near Port Fourchon, Louisiana with maximum sustained winds of 150 mph (240km/h) and a minimum central pressure of 930 mb. Ida was one of three hurricanes in recorded history to make landfall in Louisiana with 150 mph winds, along with Hurricane Laura in 2020 and the 'Last Island' hurricane of 1856. Grand Isle, Louisiana took a direct hit with 100% of its homes damaged and nearly 40% were nearly-to-completely destroyed. There was heavy damage to the energy infrastructure across southern Louisiana causing widespread, long duration power outages to millions of people. Parts of New Orleans were without power for nearly a week due to the widespread damage. As the remnants of Ida moved into the Northeast it merged with a frontal system creating severe weather and flash flooding across a wide region from eastern Pennsylvania to New York. Flash flood emergencies were declared in New Jersey and New York for the first time, producing damage to homes, businesses, vehicles and infrastructure while also causing dozens of fatalities. | $84.6 CI | 96 |
Hurricane Isaias August 2020 | Tropical Cyclone | August 3, 2020 | August 4, 2020 | Hurricane Isaias made landfall in southeastern North Carolina as a category 1 storm. Isaias accelerated up the East Coast, resulting in widespread damage and power outages across New York, New Jersey and Pennsylvania. There was also considerable inland flooding most notably in Pennsylvania. In addition, 34 tornadoes developed across North Carolina, Virginia, Maryland, Delaware and New Jersey due to Isaias. Many tornadoes were weaker (EF-0 and EF-1) producing scattered damage to agriculture, structures and residences. Isaias also produced several EF-2 tornadoes and one EF-3 tornado that caused damage in coastal North Carolina and Virginia. | $5.8 CI | 16 |
Central, Southern and Eastern Severe Weather April 2020 | Severe Storm | April 27, 2020 | April 30, 2020 | Severe weather across many Central, Southern and Eastern states produced primarily large hail and high winds that caused widespread damage to many homes, vehicles and businesses. The states affected included Oklahoma, Texas, Missouri, Arkansas, Louisiana, Virginia, Pennsylvania, Maryland, Delaware and New Jersey. | $1.3 CI | 1 |
Southeast and Eastern Tornado Outbreak April 2020 | Severe Storm | April 12, 2020 | April 13, 2020 | Outbreak of at least 140 tornadoes from Texas to Maryland including 3 EF4s, 12 EF3s, 20 EF2s, 77 EF1s and 28 EF0s. Damage was extensive and highly destructive to many homes, vehicles and businesses across more than a dozen Southeast and Eastern states. | $4.2 CI | 35 |
Northeast Winter Storm March 2018 | Winter Storm | March 1, 2018 | March 3, 2018 | Powerful Nor'easter impacted many Northeastern states including MD, MA, NH, NJ, NY, PA, CT, DE, RA and VA. Widespread damage resulted from the combination of high winds, heavy snow and heavy coastal erosion. | $2.8 CI | 9 |
Central and Eastern Winter storm, Cold Wave February 2015 | Winter Storm | February 14, 2015 | February 20, 2015 | A large winter storm and associated cold wave impacted many central, eastern and northeastern states (CT, DE, GA, IL, KY, MA, MD, ME, MI, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA). The city of Boston was particularly impacted as feet of snow continued to accumulate causing load-stress on buildings and clogging transportation corridors. Total, direct losses in Massachusetts alone exceed $1.0 ($1.3) billion for this event, with considerable damage in many other states. | $4.0 CI | 30 |
Rockies/ May 2014 | Severe Storm | May 18, 2014 | May 23, 2014 | Severe storms across the Rockies, Midwest and Eastern states (CO, MT, IA, IL, IN, OH, SC, VA, PA, DE, NY) with the most costly damage in Colorado, Illinois and Pennsylvania. | $4.9 CI | 0 |
Midwest/ April 2014 | Severe Storm | April 27, 2014 | May 1, 2014 | Tornado outbreak across the Midwest, Southeast and Northeast states (AL, AR, DE, FL, GA, KS, MD, MO, MS, NC, NJ, NY, PA, TN, VA) with 83 confirmed tornadoes. Mississippi had its 3rd greatest number of tornadoes reported for any day since 1950. Torrential rainfall in the Florida panhandle also caused major flooding, as Pensacola set new 1-day and 2-day precipitation records of 15.55 and 20.47 inches, respectively. Flooding rains were also reported in coastal Alabama, as Mobile received 11.24 inches of rain, the third greatest calendar day rainfall total for the city. | $2.3 CI | 33 |
U.S. Drought/ 2012 | Drought | January 1, 2012 | December 31, 2012 | The 2012 drought is the most extensive drought to affect the U.S. since the 1930s. Moderate to extreme drought conditions affected more than half the country for a majority of 2012. The following states were affected: CA, NV, ID, MT, WY, UT, CO, AZ, NM, TX, ND, SD, NE, KS, OK, AR, MO, IA, MN, IL, IN, GA. Costly drought impacts occurred across the central agriculture states resulting in widespread harvest failure for corn, sorghum and soybean crops, among others. The associated summer heat wave also caused 123 direct deaths, but an estimate of the excess mortality due to heat stress is still unknown. | $41.7 CI | 123 |
Hurricane Sandy October 2012 | Tropical Cyclone | October 30, 2012 | October 31, 2012 | Extensive damage across several northeastern states (MD, DE, NJ, NY, CT, MA, RI) due to high wind and coastal storm surge, particularly NY and NJ. Damage from wind, rain and heavy snow also extended more broadly to other states (NC, VA, WV, OH, PA, NH), as Sandy merged with a developing Nor'easter. Sandy's impact on major population centers caused widespread interruption to critical water/electrical services and also caused 159 deaths (72 direct, 87 indirect). Sandy also caused the New York Stock Exchange to close for two consecutive business days, which last happened in 1888 due to a major winter storm. | $88.5 CI | 159 |
Southern Plains/ Spring-Summer 2011 | Drought | March 1, 2011 | August 31, 2011 | Drought and heat wave conditions created major impacts across Texas, Oklahoma, New Mexico, Arizona, southern Kansas, and western Louisiana. In Texas and Oklahoma, a majority of range and pastures were classified in "very poor" condition for much of the 2011 crop growing season. | $17.1 CI | 95 |
Northeast Winter Storm February 2010 | Winter Storm | February 9, 2010 | February 11, 2010 | Winter storm produced 10-20 inches of snow and high wind impacts across numerous northeastern and eastern states including Pennsylvania, Maryland, Delaware, New Jersey, West Virginia, Virginia and North Carolina. These impacts were most focused in Pennsylvania and Maryland, as this winter storm closely followed a previous winter storm from the week prior. | $1.2* CI | 3 |
Western/ Summer-Fall 2007 | Drought | June 1, 2007 | November 30, 2007 | Severe drought with periods of extreme heat over most of the southeast and portions of the Great Plains, Ohio Valley, and Great Lakes area, resulting in major reductions in crop yields, along with very low stream-flows and lake levels. Includes states of ND, SD, NE, KS, OK, TX, MN, WI, IA, MO, AR, LA, MS, AL, GA, NC, SC, FL, TN, VA, WV, KY, IN, IL, OH, MI, PA, NY. | $5.5 CI | 15 |
East/ April 2007 | Severe Storm | April 13, 2007 | April 17, 2007 | Flooding, hail, tornadoes, and severe thunderstorms across numerous states (CT, DE, GA, LA, ME, MD, MA, MS, NH, NJ, NY, NC, PA, RI, SC, TX, VT, VA) in mid-April, including 3 "killer" tornadoes. | $3.8 CI | 9 |
Northeast Flooding June 2006 | Flooding | June 25, 2006 | June 28, 2006 | Severe flooding over portions of the northeast due to several weeks of heavy rainfall, affecting the states of NY, PA, DE, MD, NJ, and VA. | $2.4 CI | 20 |
Hurricane Jeanne September 2004 | Tropical Cyclone | September 15, 2004 | September 29, 2004 | Category 3 hurricane makes landfall in east-central Florida, causing considerable wind, storm surge, and flooding damage in FL, with some flood damage also in the states of GA, SC, NC, VA, MD, DE, NJ, PA, and NY. Puerto Rico also affected. | $12.4 CI | 28 |
Hurricane Ivan September 2004 | Tropical Cyclone | September 12, 2004 | September 21, 2004 | Category 3 hurricane makes landfall on Gulf coast of Alabama, with significant wind, storm surge, and flooding damage in coastal AL and FL panhandle, along with wind/flood damage in the states of GA, MS, LA, SC, NC, VA, WV, MD, TN, KY, OH, DE, NJ, PA, and NY. | $34.0 CI | 57 |
Hurricane Isabel September 2003 | Tropical Cyclone | September 18, 2003 | September 19, 2003 | Category 2 hurricane makes landfall in eastern North Carolina, causing considerable storm surge damage along the coasts of NC, VA, and MD, with wind damage and some flooding due to 4-12 inch rains in NC, VA, MD, DE, WV, NJ, NY, and PA. | $9.3 CI | 55 |
U.S. Drought Spring-Fall 2002 | Drought | March 1, 2002 | November 30, 2002 | Moderate to extreme drought over large portions of more than 30 states, including the western states, the Great Plains, and much of the eastern U.S. | $16.0 CI | 0 |
Hurricane Floyd September 1999 | Tropical Cyclone | September 14, 1999 | September 16, 1999 | Large, category 2 hurricane makes landfall in eastern NC, causing 10-20 inch rains in 2 days, with severe flooding in NC and some flooding in SC, VA, MD, PA, NY, NJ, DE, RI, CT, MA, NH, and VT. | $12.2 CI | 77 |
Central and Eastern Winter Storm January 1999 | Winter Storm | January 1, 1999 | January 4, 1999 | South, Southeast, Midwest, Northeast affected by damaging winter storm | $2.0 CI | 25 |
Blizzard/ January 1996 | Winter Storm | January 1, 1996 | January 31, 1996 | Very heavy snowstorm (1-4 feet) over Appalachians, Mid-Atlantic, and Northeast; followed by severe flooding in parts of same area due to rain and snowmelt. | $6.1 CI | 187 |
Central, Southern and Northeast Drought/ September 1995 | Drought | July 1, 1995 | September 30, 1995 | Historic mid-July heat wave and urban heat island amplification caused hundreds of deaths across several major cities including Chicago, Milwaukee, and Philadelphia. Following the heat wave was hot, dry weather in July and August 1995 that affected crops in numerous states, as crops had not rooted well due to late planting from previous wet soils. This left crops vulnerable to a flash drought during a key portion of the growing season. | $2.0 CI | 872 |
Southeast Ice Storm February 1994 | Winter Storm | February 8, 1994 | February 13, 1994 | Intense ice storm with extensive damage in portions of TX, OK, AR, LA, MS, AL, TN, GA, SC, NC, and VA. | $6.4 CI | 9 |
Winter Storm, Cold Wave January 1994 | Winter Storm | January 17, 1994 | January 20, 1994 | Winter storm affects the Southeast and Northeast regions. The states impacted include CT, DE, IL, IN, KY, MA, MD, ME, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT and WV. | $2.2 CI | 70 |
East Coast Blizzard and Severe Weather March 1993 | Winter Storm | March 11, 1993 | March 14, 1993 | The "Storm of the Century" impacts the entire Eastern seaboard from Florida to Maine. This historic storm dumped 2-4 feet of snow and caused hurricane force winds across many Eastern and Northeastern states. This caused power outages to over 10 million households. Additional impacts included numerous tornadoes across Florida causing substantial damage. This was the most destructive and costly winter storm to affect the United States (since 1980), until it was surpassed by the February 2021 winter storm and cold wave. | $12.2 CI | 270 |
Northeast Winter Storm December 1992 | Winter Storm | December 10, 1992 | December 13, 1992 | Slow-moving winter storm batters northeast U.S. coast, with the New England region hardest hit. The states impacted include VA, MD, DE, PA, NJ, NY, CT, RI, MA and WV. | $5.5 CI | 19 |
Hurricane Gloria September 1985 | Tropical Cyclone | September 26, 1985 | September 28, 1985 | Category 2 hurricane makes several landfalls along the eastern seaboard, affecting states from North Carolina to Maine. | $2.5* CI | 11 |
Winter Storm, Cold Wave January 1985 | Winter Storm | January 19, 1985 | January 22, 1985 | Extreme cold and winter storms in the Southeast, South, Southwest, Northeast, Midwest, and North | $2.5* CI | 150 |
Freeze/ December 1983 | Freeze | December 15, 1983 | December 25, 1983 | Severe freeze damages citrus crops across central/northern Florida. Associated cold wave over much of the U.S. causes over 100 deaths and additional damages. | $6.5 CI | 151 |
Midwest/ January 1982 | Winter Storm | January 8, 1982 | January 16, 1982 | Winter storm and cold wave affect numerous states (AL, AR, CT, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NH, NJ, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV) across the Midwest, Southeast and Northeast. | $2.2* CI | 85 |
โ Deaths associated with drought are the result of heat waves. (Not all droughts are accompanied by extreme heat waves.)
Flooding events (river basin or urban flooding from excessive rainfall) are separate from inland flood damage caused by tropical cyclone events.
Citing this information:
- NOAA National Centers for Environmental Information (NCEI) U.S. Billion-Dollar Weather and Climate Disasters (2025). https://www.ncei.noaa.gov/access/billions/, DOI: 10.25921/stkw-7w73