Climate of Montana, USA
Area-weighted average across Montana. For where people actually live and travel, see the cities below.
Montana, a subdivision of United States of America, has a strongly continental climate on average. Area-weighted monthly temperatures across the whole territory range from -7.4°C / 18.7°F in January to 18.9°C / 66°F in July, with rainfall from 17 mm / 0.7 in to 63 mm / 2.5 in depending on the season (403 mm / 15.9 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -7.4°C18.7°F | 23 mm0.9″ | Snowy |
| February | -4.3°C24.3°F | 17 mm0.7″ | — |
| March | -0.1°C31.8°F | 24 mm0.9″ | Snowy |
| April | 5.2°C41.4°F | 34 mm1.3″ | — |
| May | 10.6°C51.1°F | 62 mm2.4″ | — |
| June | 15.4°C59.7°F | 63 mm2.5″ | — |
| July | 18.9°C66°F | 38 mm1.5″ | Sunny & Mild |
| August | 18.6°C65.5°F | 35 mm1.4″ | Sunny & Mild |
| September | 12.9°C55.2°F | 36 mm1.4″ | — |
| October | 6.9°C44.4°F | 26 mm1″ | — |
| November | -0.9°C30.4°F | 22 mm0.9″ | Snowy |
| December | -5.9°C21.4°F | 23 mm0.9″ | Snowy |
Frequently asked questions
What is the best time to visit Montana?
The best months to visit Montana, United States of America for sunny, dry weather are July, August. The warmest month is July at an area-wide average of 18.9°C / 66°F, and the driest is February with about 17 mm / 0.7 in of rainfall.
What is the climate of Montana?
Montana, United States of America has area-weighted monthly average temperatures ranging from -7.4°C / 18.7°F in January to 18.9°C / 66°F in July. Annual rainfall averages about 403 mm / 15.9 in, with the wettest month being June (63 mm / 2.5 in) and the driest February (17 mm / 0.7 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in Montana?
The hottest month in Montana is July, with an area-wide average temperature of 18.9°C / 66°F.
What is the coldest month in Montana?
The coldest month in Montana is January, with an area-wide average temperature of -7.4°C / 18.7°F.
When does it rain most in Montana?
The wettest month in Montana is June, averaging about 63 mm / 2.5 in of rainfall. The driest is February with about 17 mm / 0.7 in.