Shelby, MT
Climate overview — based on NOAA 1991-2020 normals from SHELBY, MT US.
Year-round temperatures (°F)
Climate summary
Shelby has an annual average temperature of 42.2°F with about 12.1 inches of precipitation per year and 38.9 inches of snow. The warmest month is July (average high 82.2°F), and the coldest is January (average low 6.1°F). June is typically the wettest month (2.85 in) and February the driest (0.36 in). Snow typically falls from September through May.
Best time to visit Shelby
Full guide →Climate change signal
All-time records →120 of 366 (32.8%) of Shelby'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 | 76 | |
| 1990s | 45 | |
| 2000s | 104 | |
| 2010s | 74 | |
| 2020s | 67 |
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 | 31.4°F | 6.1°F | 18.8°F | 0.46 in | 7.3 in | 5 |
| February | 35.3°F | 9.9°F | 22.6°F | 0.36 in | 5.8 in | 5 |
| March | 43.9°F | 18.4°F | 31.2°F | 0.63 in | 6.9 in | 6 |
| April | 54.2°F | 28.4°F | 41.3°F | 1.34 in | 4.1 in | 7 |
| May | 64.4°F | 38.0°F | 51.2°F | 1.77 in | 1.9 in | 9 |
| June | 72.6°F | 46.0°F | 59.3°F | 2.85 in | — | 11 |
| July | 82.2°F | 51.5°F | 66.8°F | 1.14 in | — | 6 |
| August | 82.2°F | 49.3°F | 65.8°F | 0.85 in | — | 6 |
| September | 70.9°F | 40.5°F | 55.7°F | 1.01 in | 0.5 in | 6 |
| October | 56.2°F | 29.0°F | 42.6°F | 0.74 in | 1.4 in | 5 |
| November | 42.0°F | 17.6°F | 29.8°F | 0.52 in | 5.5 in | 5 |
| December | 33.1°F | 9.1°F | 21.1°F | 0.46 in | 5.5 in | 5 |
Climate twins of Shelby
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).