Actuarial Weather Extremes
Overview
This report series identifies and examines weather extremes in North America. Using data from the National Oceanic and Atmospheric Administration (NOAA), National Centers for Environmental Information (NCEI), NOAA Global Historical Climatology Network (GHCN), United States Geological Survey (USGS), and United States Department of Agriculture (USDA) among others; the reports identify and summarize unusual or extreme single-day or multi-day weather events which are significant in an historical context.
Authors
Rob Montgomery, ASA, MAAA, FLMI
Michael Reis, FSA, CERA, JD
Priya Rohatgi, ASA
Matthew Self, ASA
Aadit Sheth, FSA, CERA, FCIA
Patrick Wiese, ASA
Yi Xie, ASA, CERA
Materials
- Los Angeles County Wildfires – January 2025
- Los Angeles County Wildfires – January 2025 Data Analysis
- Hurricane Helene – September 2024
- Hurricane Beryl - June 2024
- Actuarial Weather Extremes: Droughts Around the World in Early 2024
- Exhibit – Supplemental Drought Data
- Actuarial Weather Extremes: California Precipitation – February 3-7, 2024
- Exhibit – Supplemental Precipitation Data for Report Graphs
- Actuarial Weather Extremes: 2023 Was the Hottest Year on Record
- Exhibit – ERA5 annual and monthly temperature data for 1960 through 2023
- Exhibit – Tableau maps data
- Exhibit – Tableau graph of moving average of global temperature anomalies
- Actuarial Weather Extremes: Five Consecutive Months of Record-High Global Temperatures
- Exhibit – ERA5 temperature data for June 2023 through October 2023
- Exhibit – Tableau maps of data
- Actuarial Weather Extremes: Record-Setting Heat Across Three Continents in July 2023
- Exhibit – ERA5 temperature data for July 2023
- Exhibit – Tableau maps of the data
- Actuarial Weather Extremes: Fort Lauderdale, FL Precipitation April 12-13, 2023
Exhibits – Fort Lauderdale Block Maxima and GEV Analysis - Actuarial Weather Extremes Series, Mississippi Tornadoes: March 24, 2023
- Actuarial Weather Extremes: Snowfall and Precipitation Analysis for Nov 2022 to Feb 2023
- Exhibits – GHCN snowfall and precipitation data
- Maps of snowfall and precipitation, in inches
- Maps of snowfall and precipitation, ranked against historical data
- Actuarial Weather Extremes Precipitation Analysis Using Extreme Value Theory
- Exhibits – Precipitation Analysis Using Extreme Value Theory
- Actuarial Weather Extremes: January 2023 Salinas River Streamflow
- Actuarial Weather Extremes Series, California Precipitation: December 30-31, 2022
- Actuarial Weather Extremes Series Hurricane Ian 2022: October 3 Follow-Up
- Actuarial Weather Extremes Series, Hurricane Ian: September 26-29, 2022
- Exhibits - Hurricane Ian Data, 09262022 to 09292022
- Actuarial Weather Extremes Series, Heavy U.S. Precipitation: July 26-29, 2022
- Exhibit: ASOS Precipitation Data for JKL and STL 198001 to 202207
- Exhibit: Python Code for 202207 Precipitation from ASOS
- Actuarial Weather Extremes Series, Southern Europe Heatwave: July 2022
- Exhibits - Southern Europe Heatwave: July 2022
- Actuarial Weather Extremes Series, U.S. Heat Wave: June 13-15, 2022
- Exhibits - U.S. Heat Wave: June 13-15, 2022
- Actuarial Weather Extremes Series, Tropical Storm Alex: June 4, 2022
- Exhibits - Tropical Storm Alex: June 04 2022
- Actuarial Weather Extremes Series, Michigan EF-3 Tornado: May 20, 2022
- Exhibits - Michigan EF-3 Tornado: May 20, 2022
- Iowa Tornados: March 5, 2022
- Exhibits - Iowa Tornados: March 5, 2022
- Actuarial Weather Extremes: December 2021
-- High Temperatures, Moderating Drought, Extreme December Storm Activity
Exhibits - Actuarial Weather Extremes: December 2021 - Give us your feedback! Take a short survey on this report. Take Survey
- Actuarial Weather Extremes: November 2021
-- Extreme Precipitation, Drought, and Late Season Tornadoes
Exhibits - Actuarial Weather Extremes: November 2021 - Give us your feedback! Take a short survey on this report. Take Survey
- Actuarial Weather Extremes: October 2021
-- Extreme Precipitation in the Western U.S., Impact of U.S. Drought, La Nina, October Tornadoes
Exhibits - Actuarial Weather Extremes: October 2021 - Give us your feedback! Take a short survey on this report. Take Survey
- Actuarial Weather Extremes: September 2021
-- Hot Northern Plains, Continuing Drought Western U.S., Hurricane Nicholas, Large Early Snowfall in Alaska
Exhibits - Actuarial Weather Extremes: September 2021 - Give us your feedback! Take a short survey on this report. Take Survey
- Actuarial Weather Extremes: August 2021
-- Historic High Temperature, Impactful Storms and Precipitation
Exhibits - Actuarial Weather Extremes: August 2021 - Give us your feedback! Take a short survey on this report. Take Survey
- Actuarial Weather Extremes: July 2021
-- Globally Record Heat, Midwest U.S. Storms, Extreme Precipitation in Southwest U.S.
Exhibits - Actuarial Weather Extremes: July 2021
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: June 2021
-- Extreme Heat in the Western U.S. and Canada, and Extreme Drought in the Western U.S.
Exhibits - Actuarial Weather Extremes: June 2021
June 2021 Heat Wave Graphing Tool
Tableau Dashboards
Tableau Map of Heat Wave Temperatures
Tableau Map with Rankings of Heat Wave Temperatures Relative to Historical Data
Give us your feedback! Take a short survey on this report. Take Survey
- Actuarial Weather Extremes: May 2021
--Flooding, Severe Drought, Tornado, Wind and Hailstorms
Exhibits - Actuarial Weather Extremes: May 2021
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: April 2021
--Alaska Cold, Hail, and Severe Drought
Exhibits - Actuarial Weather Extremes: April 2021
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: March 2021
--Record Temperatures, Precipitation, Snow, Extreme Wind, Hail, Tornado and Flooding Events
Exhibits - Actuarial Weather Extremes: March 2021
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: February 2021
--Winter Storm Uri, Continuing Severe Drought Conditions in the Western U.S.
Exhibits - Actuarial Weather Extremes: February 2021
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: January 2021
--January Weather Station Records, Dangerous Snowfall Accumulation, Persistent Severe Drought Conditions
Exhibits - Actuarial Weather Extremes: January 2021
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: December 2020
--U.S. Western Drought, Eastern Flood, 2nd Warmest Year Globally
Exhibits - Actuarial Weather Extremes: December 2020
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: November 2020
--Wildfires, Tropical Storm Eta, Wind, Rain, Flooding
Exhibits - Actuarial Weather Extremes: November 2020
Give us your feedback! Take a short survey on this report. Take Survey - Actuarial Weather Extremes: October 2020
--Western US Wildfires, Hurricane Delta, Hurricane Zeta, Winter Storm Billy
Exhibits - Actuarial Weather Extremes: October 2020 - Actuarial Weather Extremes: September 2020
- - Western US Wildfires, Hurricane Sally - Exhibits - Actuarial Weather Extremes: September 2020
- Actuarial Weather Extremes: August 2020
- -Hurricanes, Earthquake, Derecho, Extreme Heat and Wildfire - Exhibits - Actuarial Weather Extremes: August 2020
- Actuarial Weather Extremes: Hurricane Laura August 2020
--Coastal Wind, Storm Surge, Precipitation and Inland Flooding - Actuarial Weather Extremes: Hurricane Laura - August 2020
- Actuarial Weather Extremes: July 2020
--North American Heat, Asian Flooding, Record Atlantic Basin Named Storm Count - Exhibits - Actuarial Weather Extremes: July 2020
- Actuarial Weather Extremes: June 2020
--Wet Middle Atlantic U.S. states continuing heavy streamflows. Central and Northeast U.S. states dry and drought. Rare Western U.S. states derecho. High Arctic temperatures. - Exhibits - Actuarial Weather Extremes: June 2020
- Actuarial Weather Extremes: May 2020
--Cold and Wet Southeast U.S., record cold snap Northeast U.S., high incidence of earthquake in Nevada and major flooding, particularly in Great Lakes region. - Exhibits - Actuarial Weather Extremes: May 2020
- Actuarial Weather Extremes: April 2020
--Prolonged temperature and precipitation extremes, flooding and drought; along with severe storm activity - Exhibits - Actuarial Weather Extremes: April 2020
- Give us your feedback! Take a short survey on this report. Take Survey
- Actuarial Weather Extremes: March 2020
--Precipitation and Temperature Contrasts, Severe Storms and Flooding - Exhibits - Actuarial Weather Extremes: March 2020
- Actuarial Weather Extremes: February 2020
-- Heavy Precipitation in the U.S. Southeast, and Dry Conditions in California - Exhibits - Actuarial Weather Extremes: February 2020
- Actuarial Weather Extremes: January 2020
-- Unseasonable Warmth Across Much of the Northern Hemisphere - Exhibits - Actuarial Weather Extremes: January 2020
- Actuarial Weather Extremes: December 2019
-- Widespread Wildfires in Australia, Fueled by Heat, Drought and Wind - Exhibits - Actuarial Weather Extremes: December 2019
- Actuarial Weather Extremes: November 2019
-- Severe Flooding in Venice, and Winter Arrives Early Across the Northern U.S. - Exhibits - Actuarial Weather Extremes: November 2019
- Actuarial Weather Extremes: October 2019
-- A Powerful Typhoon Hits Japan, and Extreme Cold Grips the Great Plains - Exhibits - Actuarial Weather Extremes: October 2019
- Actuarial Weather Extremes: September 2019
-- Two Powerful Ocean-Borne Storms and a Heat/Dry Spell in the U.S. Southeast - Exhibits - Actuarial Weather Extremes: September 2019
- Actuarial Weather Extremes: Rainfall Totals for Hurricane Dorian
-- Rainfall Totals for Hurricane Dorian - Exhibits - Actuarial Weather Extremes: Rainfall Totals for Hurricane Dorian
- Actuarial Weather Extremes: August 2019
-- Heat Waves in North America and Heavy Monsoon Rains in India - Exhibits - Actuarial Weather Extremes: August 2019
- Actuarial Weather Extremes: July 2019
-- A Series of Heat Waves, and the First Hurricane to Make Landfall This Year - Exhibits - Actuarial Weather Extremes: July 2019
- Actuarial Weather Extremes: June 2019
-- Extreme Weather on Both Sides of the Atlantic - Exhibits - Actuarial Weather Extremes: June 2019
- Actuarial Weather Extremes: May 2019
-- A Triple Dose of Extremes: High Heat, Tornadoes and Floods - Exhibits - Actuarial Weather Extremes: May 2019
- Actuarial Weather Extremes: April 2019
-- Spring Storms and a Trail of Rain, Snow and Temperature Extremes - Exhibits - Actuarial Weather Extremes: April 2019
Podcast
Research Insights - Actuarial Weather Extremes
Questions Or Comments?
If you have comments or questions, please send an email to research@soa.org.