Nashua, MT
Climate overview — based on NOAA 1991-2020 normals from NASHUA #2, MT US.
Year-round temperatures (°F)
Avg high
Avg low
Climate summary
Nashua has an annual average temperature of 44.3°F with about 0 inches of precipitation per year. The warmest month is August (average high 87.7°F), and the coldest is January (average low 2.7°F).
Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
58.1°F
warmest to coldest month
Best time to visit Nashua
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Nashua'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.
| 1990s | 21 | |
| 2000s | 265 | |
| 2010s | 80 |
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 | 25.9°F | 2.7°F | 14.3°F | in | — | — |
| February | 30.9°F | 7.6°F | 19.3°F | in | — | — |
| March | 45.1°F | 19.4°F | 32.3°F | in | — | — |
| April | 60.7°F | 31.7°F | 46.2°F | in | — | — |
| May | 70.7°F | 42.1°F | 56.4°F | in | — | — |
| June | 79.2°F | 51.7°F | 65.5°F | in | — | — |
| July | 87.6°F | 57.1°F | 72.4°F | in | — | — |
| August | 87.7°F | 55.6°F | 71.6°F | in | — | — |
| September | 76.0°F | 44.6°F | 60.3°F | in | — | — |
| October | 58.7°F | 31.9°F | 45.3°F | in | — | — |
| November | 41.9°F | 17.7°F | 29.8°F | in | — | — |
| December | 28.6°F | 7.2°F | 17.9°F | in | — | — |
Last spring / first fall frost
All-time recordsHottest, coldest, wettest
Planting calendarWhat to plant, and when