Circle, MT
Climate overview — based on NOAA 1991-2020 normals from CIRCLE, MT US.
Year-round temperatures (°F)
Climate summary
Circle has an annual average temperature of 45.1°F with about 14.5 inches of precipitation per year. The warmest month is July (average high 87.1°F), and the coldest is January (average low 7.8°F). June is typically the wettest month (2.64 in) and November the driest (0.36 in).
Best time to visit Circle
Full guide →Climate change signal
All-time records →77 of 366 (21%) of Circle'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.
| 1960s | 38 | |
| 1970s | 35 | |
| 1980s | 96 | |
| 1990s | 52 | |
| 2000s | 51 | |
| 2010s | 48 | |
| 2020s | 46 |
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 | 28.5°F | 7.8°F | 18.1°F | 0.40 in | — | 5 |
| February | 32.6°F | 11.5°F | 22.1°F | 0.37 in | — | 4 |
| March | 45.5°F | 21.6°F | 33.6°F | 0.49 in | — | 4 |
| April | 58.1°F | 31.7°F | 44.9°F | 1.38 in | — | 5 |
| May | 68.3°F | 41.7°F | 55.0°F | 2.55 in | — | 7 |
| June | 77.7°F | 50.9°F | 64.3°F | 2.64 in | — | 9 |
| July | 87.1°F | 57.1°F | 72.1°F | 2.14 in | — | 7 |
| August | 86.8°F | 55.4°F | 71.1°F | 1.40 in | — | 4 |
| September | 75.5°F | 45.2°F | 60.3°F | 1.33 in | — | 5 |
| October | 58.8°F | 33.1°F | 46.0°F | 0.93 in | — | 4 |
| November | 42.8°F | 21.2°F | 32.0°F | 0.36 in | — | 4 |
| December | 31.5°F | 11.0°F | 21.3°F | 0.46 in | — | 4 |
Climate twins of Circle
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).