Pennsylvania Summary
U.S. Billion-Dollar Weather and Climate Disasters
From 1982–2026, Pennsylvania experienced 127 billion-dollar events totaling $20B–50B in CPI-adjusted costs. The costliest year was 2011 ($2B–5B), and the most active year by count was 2024 (12 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 24% versus the long-term average.
Pennsylvania Monthly Climatology of Billion-Dollar Disasters (45 years)
| Month | Drought | Flooding | Freeze | Severe Storm | Tropical Cyclone | Wildfire | Winter Storm | Total |
|---|---|---|---|---|---|---|---|---|
| Jan | 2 | 0 | 0 | 1 | 0 | 0 | 10 | 13 |
| Feb | 2 | 0 | 0 | 7 | 0 | 0 | 5 | 14 |
| Mar | 5 | 1 | 0 | 13 | 0 | 0 | 2 | 21 |
| Apr | 5 | 0 | 0 | 22 | 0 | 0 | 0 | 27 |
| May | 5 | 0 | 0 | 15 | 0 | 0 | 0 | 20 |
| Jun | 7 | 1 | 0 | 11 | 1 | 0 | 0 | 20 |
| Jul | 8 | 1 | 0 | 10 | 2 | 0 | 0 | 21 |
| Aug | 8 | 0 | 0 | 2 | 4 | 0 | 0 | 14 |
| Sep | 5 | 0 | 0 | 0 | 9 | 0 | 0 | 14 |
| Oct | 4 | 0 | 0 | 0 | 1 | 0 | 1 | 6 |
| Nov | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 6 |
| Dec | 2 | 1 | 1 | 0 | 0 | 0 | 3 | 7 |
Pennsylvania Monthly Probability of Billion-Dollar Disasters
| Month | 1+ Events | 2+ Events | 3+ Events | 4+ Events | 5+ Events |
|---|---|---|---|---|---|
| Jan | 22% | 4% | 2% | 0% | 0% |
| Feb | 29% | 2% | 0% | 0% | 0% |
| Mar | 36% | 9% | 2% | 0% | 0% |
| Apr | 38% | 16% | 7% | 0% | 0% |
| May | 29% | 16% | 0% | 0% | 0% |
| Jun | 36% | 7% | 2% | 0% | 0% |
| Jul | 36% | 7% | 4% | 0% | 0% |
| Aug | 24% | 4% | 2% | 0% | 0% |
| Sep | 29% | 2% | 0% | 0% | 0% |
| Oct | 11% | 2% | 0% | 0% | 0% |
| Nov | 11% | 2% | 0% | 0% | 0% |
| Dec | 16% | 0% | 0% | 0% | 0% |
Pennsylvania Cost (cumulative monthly)
Pennsylvania Events (cumulative monthly)
Pennsylvania's Billion-Dollar Disasters
North Central and Northeast Synoptic Wind Event
Central and Eastern Winter Storm
Central Severe Storms
North Central and Eastern Severe Storms
North Central and Northeast Severe Storms
North Central and Eastern Tornado Outbreak and Severe Storms
Eastern Severe Storms
Central Severe Storms and Northeastern Derecho
North Central Tornado Outbreak and Severe Storms
Central Tornado Outbreak and Flooding
Central Tornado Outbreak
Southeastern Severe Storms
Southern/Eastern/Northwestern Drought and Heat Wave
Hurricane Debby
Central and Eastern Tornado Outbreak and Severe Weather
Hurricane Beryl
Central and Northeast Severe Weather
Central and Eastern Severe Weather
Central, Southern, Eastern Severe Weather
Southern and Eastern Severe Weather
Central Tornado Outbreak and Eastern Severe Weather
Central and Eastern Severe Weather
Central, Southern, Northeastern Winter Storm and Cold Wave
Southern Tornado Outbreak and East Coast Storm
East Coast Storm and Flooding
Northeastern and Eastern Severe Weather
North Central and Eastern Severe Weather
North Central and Southeastern Severe Weather
Northeastern Flooding and North Central Severe Weather
Rockies Hail Storms and Central and Eastern Severe Weather
Central and Eastern Severe Weather
Central Tornado Outbreak and Eastern Severe Weather
Southern and Eastern Severe Weather
Southern and Eastern Severe Weather
Northeastern Winter Storm/Cold Wave
Central and Eastern Winter Storm and Cold Wave
North Central and Eastern Severe Weather
North Central Hail Storms
Southern and Central Severe Weather
Southeast Tornado Outbreak
Southern Tornado Outbreak
Hurricane Ida
Tropical Storm Fred
North Central Severe Weather
Tropical Storm Elsa
Eastern Severe Weather
Southeast Tornadoes and Severe Weather
Hurricane Isaias
Central, Southern and Eastern Severe Weather
Southeast and Eastern Tornado Outbreak
North Central and Ohio Valley Hail Storms and Severe Weather
Midwest and Ohio Valley Severe Weather
South, East and Northeast Severe Weather
Rockies, Central and Northeast Tornadoes and Severe Weather
Southern and Eastern Tornadoes and Severe Weather
Southeast, Ohio Valley and Northeast Severe Weather
Central and Eastern Tornadoes and Severe Weather
Central and Eastern Severe Weather
Central and Northeast Severe Weather
Southern and Eastern Tornadoes and Severe Weather
Northeast Winter Storm
Central and Eastern Winter Storm
Midwest Severe Weather
Rockies and Northeast Severe Weather
Southeast and Eastern Tornadoes
Central and Northeast Severe Weather
South/Southeast Severe Weather
Midwest/Ohio Valley Severe Weather
Central and Eastern Winter storm, Cold Wave
Rockies/Midwest/Eastern Severe Weather
Midwest/Southeast/Northeast Tornadoes and Flooding
Midwest/Southeast/Northeast Winter Storm
U.S. Drought/Heat Wave
Hurricane Sandy
Southern Plains/Midwest/Northeast Severe Weather
Northeastern Winter Storm
Tropical Storm Lee
Southern Plains/Southwest Drought and Heat Wave
Midwest/Southeast Tornadoes
Midwest/Southeast Tornadoes
Groundhog Day Blizzard
Midwest/Northeast Severe Storms and Flooding
Oklahoma, Kansas, and Texas Tornadoes and Severe Weather
Northeast Flooding
Northeast Winter Storm
Midwest, South and East Severe Weather
Southeast/Ohio Valley Severe Weather
Hurricane Ike
Midwest/Mid-Atlantic Severe Weather
Western/Eastern Drought/Heat Wave
East/South Severe Weather and Flooding
Northeast Flooding
Hurricane Jeanne
Hurricane Ivan
Hurricane Isabel
Southern Derecho and Eastern Severe Weather
U.S. Drought
Eastern Tornadoes and Severe Storms
Severe Storms and Tornadoes
Tropical Storm Allison
Midwest/Ohio Valley Hail and Tornadoes
Hurricane Floyd
Eastern Drought/Heat Wave
Central and Eastern Winter Storm
Central and Eastern Winter Storm
Central and Eastern Severe Storms and Flooding
Northern Plains and Great Lakes Derecho, Tornadoes
Mississippi and Ohio Valley Severe Weather and Flooding
Hurricane Fran
Blizzard/Floods
Central, Southern and Northeast Drought/Heat Wave
Southeast Ice Storm
Winter Storm, Cold Wave
East Coast Blizzard and Severe Weather
Northeast Winter Storm
U.S. Drought
Severe Storms, Tornadoes
Winter Storm, Cold Wave
Virginia, West Virginia, Pennsylvania and Maryland Flooding
Hurricane Gloria
Ohio and Pennsylvania Tornado Outbreak
Winter Storm, Cold Wave
Tornadoes, Severe Storms, Floods
Freeze/Cold Wave
Midwest/Plains/Southeast Tornadoes
Midwest/Southeast/Northeast Winter Storm, Cold Wave
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.
