Judith Gap, MT
Climate overview — based on NOAA 1991-2020 normals from JUDITH GAP, MT US.
Year-round temperatures (°F)
Climate summary
Judith Gap has an annual average temperature of 41.6°F with about 15.9 inches of precipitation per year and 27.5 inches of snow. The warmest month is August (average high 79.7°F), and the coldest is January (average low 11.9°F). May is typically the wettest month (3.26 in) and December the driest (0.38 in). Snow typically falls from September through May.
Best time to visit Judith Gap
Full guide →Climate change signal
All-time records →100 of 366 (27.3%) of Judith Gap'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.
| 1950s | 1 | |
| 1960s | 0 | |
| 1970s | 0 | |
| 1980s | 0 | |
| 1990s | 0 | |
| 2000s | 229 | |
| 2010s | 109 | |
| 2020s | 27 |
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 | 33.9°F | 11.9°F | 22.9°F | 0.43 in | 4.5 in | 3 |
| February | 33.5°F | 13.0°F | 23.3°F | 0.45 in | 6.7 in | 3 |
| March | 42.3°F | 19.8°F | 31.0°F | 0.64 in | 3.6 in | 4 |
| April | 51.0°F | 27.3°F | 39.2°F | 1.75 in | 2.8 in | 8 |
| May | 60.2°F | 35.6°F | 47.9°F | 3.26 in | 0.4 in | 10 |
| June | 67.9°F | 43.6°F | 55.7°F | 3.03 in | — | 10 |
| July | 79.4°F | 50.0°F | 64.7°F | 1.73 in | — | 8 |
| August | 79.7°F | 48.6°F | 64.1°F | 1.49 in | — | 7 |
| September | 68.6°F | 40.2°F | 54.4°F | 1.36 in | 0.2 in | 5 |
| October | 54.0°F | 29.5°F | 41.7°F | 0.89 in | 1.8 in | 5 |
| November | 42.3°F | 20.8°F | 31.6°F | 0.51 in | 3.7 in | 3 |
| December | 32.8°F | 12.4°F | 22.6°F | 0.38 in | 3.8 in | 3 |
Climate twins of Judith Gap
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).