Washington Summary
U.S. Billion-Dollar Weather and Climate Disasters
From 1983–2025, Washington experienced 37 billion-dollar events totaling $10B–20B in CPI-adjusted costs. The costliest year was 2021 ($1B–2B), and the most active year by count was 2008 (3 events). Risk Score accounted for the largest share of costs, while Risk Score was most frequent. Over the last 5 years, annual CPI-adjusted costs were up 103% versus the long-term average.
Washington Monthly Climatology of Billion-Dollar Disasters (44 years)
| Month | Drought | Flooding | Freeze | Severe Storm | Tropical Cyclone | Wildfire | Winter Storm | Total |
|---|---|---|---|---|---|---|---|---|
| Jan | 8 | 2 | 0 | 1 | 0 | 1 | 1 | 13 |
| Feb | 8 | 2 | 0 | 0 | 0 | 1 | 1 | 12 |
| Mar | 12 | 1 | 0 | 0 | 0 | 2 | 0 | 15 |
| Apr | 13 | 0 | 0 | 0 | 0 | 3 | 0 | 16 |
| May | 13 | 0 | 0 | 0 | 0 | 3 | 0 | 16 |
| Jun | 14 | 0 | 0 | 0 | 0 | 12 | 0 | 26 |
| Jul | 14 | 0 | 0 | 0 | 0 | 12 | 0 | 26 |
| Aug | 14 | 0 | 0 | 0 | 0 | 13 | 0 | 27 |
| Sep | 12 | 0 | 0 | 0 | 0 | 12 | 0 | 24 |
| Oct | 11 | 0 | 0 | 0 | 0 | 12 | 0 | 23 |
| Nov | 11 | 0 | 0 | 0 | 0 | 12 | 0 | 23 |
| Dec | 9 | 1 | 1 | 0 | 0 | 6 | 1 | 18 |
Washington Monthly Probability of Billion-Dollar Disasters
| Month | 1+ Events | 2+ Events | 3+ Events | 4+ Events | 5+ Events |
|---|---|---|---|---|---|
| Jan | 27% | 5% | 0% | 0% | 0% |
| Feb | 27% | 2% | 0% | 0% | 0% |
| Mar | 36% | 0% | 0% | 0% | 0% |
| Apr | 34% | 2% | 0% | 0% | 0% |
| May | 34% | 2% | 0% | 0% | 0% |
| Jun | 52% | 7% | 0% | 0% | 0% |
| Jul | 52% | 7% | 0% | 0% | 0% |
| Aug | 52% | 9% | 0% | 0% | 0% |
| Sep | 41% | 14% | 0% | 0% | 0% |
| Oct | 39% | 14% | 0% | 0% | 0% |
| Nov | 39% | 14% | 0% | 0% | 0% |
| Dec | 34% | 9% | 0% | 0% | 0% |
Washington Cost (cumulative monthly)
Washington Events (cumulative monthly)
Washington's Billion-Dollar Disasters
Southern/Eastern/Northwestern Drought and Heat Wave
Northwest Winter Storm
Southern/Midwestern Drought and Heatwave
Western/Central Drought and Heat Wave
Central and Eastern Winter Storm and Cold Wave
Western Wildfires
Western Drought and Heat Wave
Western Wildfires
Northwest, Central, Eastern Winter Storm and Cold Wave
Western Wildfires - California, Oregon, Washington Firestorms
Western/Central Drought and Heat Wave
Western Wildfires, California Firestorm
Western Wildfires, California Firestorm
Western/Southeast Wildfires
Western Drought
Western and Alaskan Wildfires
Western Drought
Western/Plains Drought/Heat Wave
Western Wildfires
Southwest/Great Plains Drought
U.S. Drought
U.S. Wildfires
Western, Central and Northeast Severe Weather
Western Wildfires
Numerous Wildfires
Midwest Drought
Western/Central Drought/Heat Wave
California Wildfires
Western Fire Season
West Coast Flooding
Pacific Northwest Severe Flooding
Western Fire Season
U.S. Drought
Western Fire Season
Freeze/Cold Wave
Western Storms and Flooding
About State-Level Data
State-level summaries and charts on this page are derived from authoritative data that assigns costs to each affected state for every billion-dollar disaster. Those state-specific costs are shown only as binned ranges. The event cards and table list each disaster's full event cost rather than an exact state allocation.
Climate Central maintains this comprehensive database tracking U.S. weather and climate disasters since 1980 where overall damages/costs reached or exceeded $1 billion (including Consumer Price Index adjustment). As the steward of this dataset, Climate Central is committed to maintaining the scientific rigor and methodological standards established by NOAA's National Centers for Environmental Information (NCEI) while enhancing the dataset's utility for climate communication and public understanding of climate risks.
For more information on methodology and data sources, please visit the main Billion-Dollar Disasters page.
