States › Pennsylvania › 2004
Pennsylvania, 2004
The year's recorded storm events, federal disaster declarations and flood insurance claims.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders.
Events by hazard
Includes events recorded by forecast zone. The state's yearly total for 2004 was 1,582 against 1,591 in 2003.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 6 Jan 2004 | Forecast zone | Winter Weather | — | $1,500,000 | 6 | 12 |
| 9 May 2004 | York | Flash Flood | — | $5,500,000 | 2 | — |
| 9 Jan 2004 | Philadelphia | Cold/Wind Chill | — | — | 2 | — |
| 17 Sep 2004 | Allegheny | Flood | — | $26,000,000 | 1 | 92 |
| 28 Sep 2004 | Philadelphia | Flash Flood | — | $2,000,000 | 1 | — |
| 20 Dec 2004 | Mercer | Heavy Snow | — | $650,000 | — | 100 |
| 13 Apr 2004 | Fayette | Flood | — | $25,000 | 1 | — |
| 1 Dec 2004 | Montgomery | Strong Wind | 49 mph | $20,000 | 1 | — |
| 15 Jan 2004 | Philadelphia | Cold/Wind Chill | — | — | 1 | — |
| 25 Jan 2004 | Philadelphia | Cold/Wind Chill | — | — | 1 | — |
| 19 Apr 2004 | Philadelphia | Heat | — | — | 1 | — |
| 17 Sep 2004 | Blair | Flood | — | — | 1 | — |
| 17 Sep 2004 | Mifflin | Flood | — | — | 1 | — |
| 18 Sep 2004 | Carbon | Flash Flood | — | — | 1 | — |
| 18 Sep 2004 | Luzerne | Flash Flood | — | $100,000,000 | — | — |
| 15 May 2004 | Delaware | Thunderstorm Wind | 46 mph | — | — | 8 |
| 17 Sep 2004 | Warren | Flood | — | $50,000,000 | — | — |
| 16 Jan 2004 | Monroe | Strong Wind | 46 mph | $11,000 | — | 3 |
| 18 Sep 2004 | Bucks | Flood | — | $24,000,000 | — | — |
| 14 Jun 2004 | Venango | Thunderstorm Wind | 60 mph | $30,000 | — | 2 |
| 5 May 2004 | Luzerne | Lightning | — | $10,000 | — | 2 |
| 7 May 2004 | Lancaster | Lightning | — | — | — | 2 |
| 17 Jun 2004 | Lancaster | Lightning | — | — | — | 2 |
| 1 Aug 2004 | Carbon | Heavy Rain | — | — | — | 2 |
| 17 Sep 2004 | Bradford | Flash Flood | — | $20,000,000 | — | — |
| 18 Sep 2004 | Lackawanna | Flash Flood | — | $20,000,000 | — | — |
| 14 Jul 2004 | Lebanon | Tornado | F3 | $18,000,000 | — | — |
| 1 Aug 2004 | Philadelphia | Flash Flood | — | $18,000,000 | — | — |
| 17 Sep 2004 | Wyoming | Flash Flood | — | $15,000,000 | — | — |
| 18 Sep 2004 | Pike | Flash Flood | — | $15,000,000 | — | — |
| 18 Sep 2004 | Wayne | Flash Flood | — | $15,000,000 | — | — |
| 17 Sep 2004 | Armstrong | Flood | — | $4,000,000 | — | 1 |
| 8 Sep 2004 | Crawford | Flash Flood | — | $11,500,000 | — | — |
| 12 Jul 2004 | Berks | Flash Flood | — | $500,000 | — | 1 |
| 5 Mar 2004 | Beaver | High Wind | 58 mph | $10,000 | — | 1 |
| 15 May 2004 | Northampton | Lightning | — | — | — | 1 |
| 1 Jun 2004 | Chester | Lightning | — | — | — | 1 |
| 17 Jun 2004 | Monroe | Lightning | — | — | — | 1 |
| 17 Sep 2004 | Susquehanna | Flash Flood | — | $10,000,000 | — | — |
| 1 Dec 2004 | Allegheny | High Wind | 58 mph | — | — | 1 |
Up to 40 events with deaths, injuries, damage of $50,000 or more, or a tornado rating, ranked by deaths, injuries and damage.
Federal disaster declarations in 2004
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 19 Sep 2004 | DR-1557 | Major disaster | Hurricane | Tropical Depression Ivan | 67 |
| 19 Sep 2004 | DR-1555 | Major disaster | Severe Storm | Severe Storms And Flooding Associated With Tropical Depression Frances | 67 |
| 6 Aug 2004 | DR-1538 | Major disaster | Severe Storm | Severe Storms And Flooding | 7 |
Flood insurance claims with a 2004 date of loss
10,120 NFIP claims, 8,953 of them paid, for $210,737,540.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (29 Sep 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 30 Sep 2026.