Forsyth, MT
Climate overview — based on NOAA 1991-2020 normals from FORSYTH, MT US.
Year-round temperatures (°F)
Climate summary
Forsyth has an annual average temperature of 46.7°F with about 16 inches of precipitation per year and 34.6 inches of snow. The warmest month is July (average high 88.0°F), and the coldest is January (average low 10.2°F). May is typically the wettest month (2.92 in) and February the driest (0.58 in). Snow typically falls from October through May.
Best time to visit Forsyth
Full guide →Climate change signal
All-time records →71 of 366 (19.4%) of Forsyth's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1970s | 24 | |
| 1980s | 91 | |
| 1990s | 89 | |
| 2000s | 73 | |
| 2010s | 46 | |
| 2020s | 43 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 33.7°F | 10.2°F | 21.9°F | 0.61 in | 7.7 in | 6 |
| February | 38.0°F | 13.5°F | 25.7°F | 0.58 in | 7.3 in | 6 |
| March | 49.3°F | 23.3°F | 36.3°F | 0.94 in | 3.9 in | 7 |
| April | 59.2°F | 32.9°F | 46.1°F | 1.85 in | 2.8 in | 8 |
| May | 68.8°F | 42.8°F | 55.8°F | 2.92 in | 0.4 in | 11 |
| June | 78.5°F | 52.0°F | 65.2°F | 2.54 in | — | 10 |
| July | 88.0°F | 58.2°F | 73.1°F | 1.38 in | — | 7 |
| August | 86.5°F | 55.8°F | 71.1°F | 1.19 in | — | 6 |
| September | 75.4°F | 45.6°F | 60.5°F | 1.38 in | 0.1 in | 6 |
| October | 60.0°F | 33.7°F | 46.8°F | 1.37 in | 1.5 in | 7 |
| November | 46.1°F | 21.7°F | 33.9°F | 0.66 in | 4.0 in | 6 |
| December | 35.4°F | 12.6°F | 24.0°F | 0.58 in | 6.9 in | 5 |
Climate twins of Forsyth
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).