NHC HURDAT2 · SPC Tornado Database
Hurricanes and Tornadoes That Hit Fairfield, MT
Every tropical system within 75 miles since 1851 and every tornado within 25 miles since 1950.
Data: NOAA NHC HURDAT2 and NOAA SPC tornado and hail reports, through 2025 · Updated
No tropical storm or hurricane has passed within 75 miles of Fairfield, Montana since records began in 1851. Since 1950, 7 tornadoes have touched down within 25 miles, 0 of them rated EF3 or stronger.
- Hurricanes
- 0
- Tropical storms
- 0
- Tornadoes
- 7
- EF3 or stronger
- 0
within 75 mi, since 1851
below hurricane strength
within 25 mi, since 1950
no recorded deaths
What the records show for Fairfield
The strongest of the 7 tornadoes within 25 miles was an F2 on July 2, 1966; its path came within 15 miles. Of the 7, one had a path within 5 miles of the city centre, and none has come since 2000. The most recent tornado was on July 3, 1998. Fairfield has more tornadoes within 25 miles than 71% of the 73 Montana cities on this site. Hail has been reported within 10 miles 27 times since 1959, with stones up to 1.75 inches (golf ball size). Fairfield has more hail reports within 10 miles than 49% of the 73 Montana cities.
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Tornadoes within 25 miles of Fairfield
By decade
- 1990s1
- 1970s1
- 1960s4
- 1950s1
| Date | Rating | Distance | Path | Killed / injured |
|---|---|---|---|---|
| Jul 2, 1966 | F2 | 15 mi | 0.8 mi | 0 / 0 |
| Jul 3, 1998 | F1 | 23 mi | 0.5 mi | 0 / 0 |
| Jun 1, 1977 | F1 | 13 mi | 0.1 mi | 0 / 0 |
| Jul 2, 1964 | F1 | 2 mi | 27 mi | 0 / 0 |
| Jun 22, 1962 | F1 | 6 mi | 0.1 mi | 0 / 0 |
| Jun 5, 1963 | F0 | 12 mi | 1.5 mi | 0 / 0 |
| Jun 7, 1953 | F0 | 25 mi | 0.1 mi | 0 / 0 |
The strongest 7 of 7, by rating and then by deaths. Ratings before February 2007 are on the original Fujita scale.
Hail in Fairfield
The Storm Prediction Center has 27 hail reports within 10 miles of Fairfield since 1959, made on 24 separate days. Of these, 18 were 1 inch across or larger, and none reached 2 inches. The largest size, 1.75 inches (golf ball size), was reported on 4 days, most recently June 19, 2013. The most recent report is from May 15, 2014. June has the most reports, 16.
Source: NOAA Storm Prediction Center severe weather reports, data through 2025.
Weather by month in Fairfield
The nearest NOAA station with 1991–2020 climate normals is Fairfield, MT, 2 miles east of Fairfield at 3,983 feet. July is the warmest, with an average high of 80°F and low of 53°F; January is the coolest, at 36°F and 17°F. June is the wettest at 2.6 inches of precipitation on average and January and December the driest at 0.3 inches; the year adds up to 12.3 inches over 33 days with at least a tenth of an inch. Highs reach 90°F on about 8 days a year, almost all from July to August. Lows fall below freezing on about 160 nights a year. That 12.3 inches is more than at 9 of the 58 Montana stations used on this site (16%). Choteau, 21 miles northwest, has its own station (Choteau, MT): 12.0 inches a year, 0.3 less than here, and a July average high of 82°F against 80°F.
| Month | High °F | Low °F | Precip. in | Days ≥ 0.1" |
|---|---|---|---|---|
| Jan | 36 | 17 | 0.3 | 1 |
| Feb | 36 | 17 | 0.4 | 1 |
| Mar | 45 | 24 | 0.6 | 2 |
| Apr | 53 | 32 | 1.4 | 4 |
| May | 62 | 41 | 2.1 | 5 |
| Jun | 70 | 48 | 2.6 | 6 |
| Jul | 80 | 53 | 1.1 | 3 |
| Aug | 79 | 52 | 1.1 | 3 |
| Sep | 69 | 44 | 1.2 | 3 |
| Oct | 55 | 34 | 0.7 | 3 |
| Nov | 43 | 25 | 0.5 | 2 |
| Dec | 35 | 18 | 0.3 | 1 |
| Year | 55 | 34 | 12.3 | 33 |
Averages for 1991–2020 at Fairfield, MT (3,983 ft), from NOAA NCEI U.S. Climate Normals. Normals describe the station; the farther a place is from it, and the bigger the difference in height, the more its weather can differ.
Floods, thunderstorm wind and lightning near Fairfield
Since 1996, the National Weather Service has logged 20 flood, rain, thunderstorm wind and lightning events that began within 10 miles of Fairfield: 18 thunderstorm wind reports and 2 heavy rain events. The strongest thunderstorm gust on record here was 75 mph, on July 3, 1998.
Source: NOAA NCEI Storm Events Database, events whose starting point is on record, 1996 to June 30, 2026. Damage is the NWS estimate in the dollars of the year, not insured losses, and NWS notes that some reports are unverified.
Flood insurance claims, disaster declarations and FEMA risk ratings
Teton County, which includes Fairfield, has been named in 12 federal disaster or emergency declarations since 1975, 8 of them major disasters (by incident: 3 severe storms, 2 biological emergencies, 2 fires, 2 floods). The latest major disaster declaration was Severe Winter Storm and Straight-Line Winds, on April 7, 2026. FEMA's National Risk Index gives Teton County a Very Low rating for natural hazard risk overall; by hazard: Very Low for tornadoes, hail, inland flooding, strong wind, lightning and heat waves. It models the county's expected loss from all 18 hazards it covers at $8.2 million a year, the 30th highest of 56 Montana counties; of the hazards above, the largest share, $4.3 million (53%), is from inland flooding.
Claims: FEMA, OpenFEMA Dataset FIMA NFIP Redacted Claims – v3, summed over ZIP codes; payments in the dollars of each year, not adjusted for inflation. Declarations: Disaster Declarations Summaries – v2, by county. Retrieved October 25, 2026. This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Risk ratings: FEMA, National Risk Index county table, December 2025 (v1.20), retrieved October 26, 2026; ratings compare counties nationwide, are meant for planning and are no substitute for a local risk assessment. This product uses the Federal Emergency Management Agency's National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
What counts as a pass, the distances and the sources: how this storm history is built.
Cities near Fairfield
- Choteau, MT21 mi
- Cascade, MT32 mi
- Great Falls, MT35 mi
- Conrad, MT39 mi
- Shelby, MT60 mi
- Helena, MT68 mi
- East Helena, MT73 mi
- Cut Bank, MT76 mi
- Clancy, MT79 mi
- Browning, MT80 mi
- Townsend, MT89 mi
- Bonner, MT91 mi
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