Montana, 2005
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 2005 was 1,128 against 685 in 2004.
Counties with the most recorded events
Notable events
| Date | County | Event type | Magnitude | Property damage | Deaths | Injuries |
|---|---|---|---|---|---|---|
| 6 Feb 2005 | Forecast zone | Cold/Wind Chill | — | — | 1 | — |
| 9 Sep 2005 | Deer Lodge | Lightning | — | — | — | 3 |
| 30 Nov 2005 | Forecast zone | Heavy Snow | — | — | — | 3 |
| 13 Jul 2005 | Sheridan | Thunderstorm Wind | 60 mph | $10,000 | — | 1 |
| 13 Jul 2005 | Roosevelt | Thunderstorm Wind | 92 mph | $3,000,000 | — | — |
| 13 Jul 2005 | Roosevelt | Thunderstorm Wind | 113 mph | $1,250,000 | — | — |
| 20 Jun 2005 | Valley | Hail | 2.00 in | $900,000 | — | — |
| 2 Jun 2005 | Forecast zone | Flood | — | $700,000 | — | — |
| 9 Apr 2005 | Garfield | High Wind | 58 mph | $499,000 | — | — |
| 13 Jul 2005 | Roosevelt | Thunderstorm Wind | 70 mph | $250,000 | — | — |
| 7 Jun 2005 | Valley | Flash Flood | — | $200,000 | — | — |
| 6 Jun 2005 | McCone | Flash Flood | — | $172,000 | — | — |
| 9 Apr 2005 | McCone | High Wind | 43 mph | $150,000 | — | — |
| 3 Jun 2005 | Chouteau | Flood | — | $150,000 | — | — |
| 20 Jun 2005 | Valley | Hail | 1.75 in | $150,000 | — | — |
| 6 Jun 2005 | Prairie | Thunderstorm Wind | 81 mph | $145,000 | — | — |
| 20 May 2005 | Prairie | Thunderstorm Wind | 69 mph | $132,000 | — | — |
| 28 Jun 2005 | Dawson | Flash Flood | — | $112,000 | — | — |
| 9 Apr 2005 | Forecast zone | Blizzard | — | $100,000 | — | — |
| 20 Jun 2005 | Phillips | Hail | 2.75 in | $100,000 | — | — |
| 13 Jul 2005 | Roosevelt | Thunderstorm Wind | 92 mph | $100,000 | — | — |
| 3 Jun 2005 | Cascade | Flood | — | $80,000 | — | — |
| 6 Jun 2005 | Valley | Flash Flood | — | $75,000 | — | — |
| 6 Jun 2005 | Sheridan | Thunderstorm Wind | 60 mph | $75,000 | — | — |
| 7 Jun 2005 | Valley | Flash Flood | — | $75,000 | — | — |
| 9 Apr 2005 | Prairie | High Wind | 58 mph | $56,000 | — | — |
| 6 Jun 2005 | Dawson | Thunderstorm Wind | 86 mph | $50,000 | — | — |
| 4 Oct 2005 | Dawson | Blizzard | — | $50,000 | — | — |
| 6 Jun 2005 | Fallon | Tornado | F0 | — | — | — |
| 28 Jun 2005 | Fergus | Tornado | F0 | — | — | — |
| 28 Jun 2005 | Petroleum | Tornado | F0 | — | — | — |
| 17 Jun 2005 | Fergus | Tornado | F0 | — | — | — |
| 6 Jun 2005 | Carter | Tornado | F0 | — | — | — |
| 7 Jun 2005 | Powder River | Tornado | F0 | — | — | — |
| 25 Jun 2005 | Fergus | Tornado | F0 | — | — | — |
| 20 Jun 2005 | Blaine | Tornado | F0 | — | — | — |
| 11 Aug 2005 | Stillwater | Tornado | F0 | — | — | — |
| 11 Aug 2005 | Yellowstone | Tornado | F0 | — | — | — |
| 25 Jun 2005 | Roosevelt | Tornado | F0 | — | — | — |
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 2005
| Declared | Number | Type | Incident | Title | Counties |
|---|---|---|---|---|---|
| 13 Sep 2005 | EM-3253 | Emergency | Hurricane | Hurricane Katrina Evacuation | 56 |
Flood insurance claims with a 2005 date of loss
10 NFIP claims, 4 of them paid, for $19,644.
Sources: NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 (1 Oct 2026); OpenFEMA NfipClaims v3 (8 Sep 2026). Built 1 Oct 2026.