Climate of Helena, Montana, USA
Point-value climate at Helena (Montana, United States of America). Population approximately 38,725.
Located in Montana, United States of America, Helena has a strongly continental climate. Population approximately 38,725. Monthly average temperatures range from -6.2°C / 20.8°F in January to 19.7°C / 67.5°F in July, with rainfall varying from 10 mm / 0.4 in (February) to 47 mm / 1.9 in (June) — about 289 mm / 11.4 in across the year. Helena is the capital of Montana. These are point-value climate normals sampled at Helena's coordinates — often quite different from the surrounding region's area-weighted average.
Best sunny months: June, July, August.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | -6.2°C20.8°F | 14 mm0.6″ | — |
| February | -3°C26.6°F | 10 mm0.4″ | — |
| March | 1.9°C35.4°F | 17 mm0.7″ | — |
| April | 6.8°C44.2°F | 22 mm0.9″ | — |
| May | 11.7°C53.1°F | 46 mm1.8″ | — |
| June | 16.4°C61.5°F | 47 mm1.9″ | Sunny & Mild |
| July | 19.7°C67.5°F | 33 mm1.3″ | Sunny & Mild |
| August | 19.3°C66.7°F | 32 mm1.3″ | Sunny & Mild |
| September | 13.6°C56.5°F | 27 mm1.1″ | — |
| October | 7.9°C46.2°F | 17 mm0.7″ | — |
| November | 0.3°C32.5°F | 12 mm0.5″ | — |
| December | -5.2°C22.6°F | 12 mm0.5″ | — |
Frequently asked questions
What is the best time to visit Helena?
The months with the sunniest, driest weather are June, July, August. Helena's warmest month is July at an average of 19.7°C / 67.5°F, and its driest month is February with about 10 mm / 0.4 in of rain.
What is the climate of Helena?
Helena, in Montana, United States of America, has monthly average temperatures ranging from -6.2°C / 20.8°F in January to 19.7°C / 67.5°F in July. Annual rainfall is approximately 289 mm / 11.4 in, with the wettest month being June (47 mm / 1.9 in) and the driest February (10 mm / 0.4 in).
What is the average temperature in Helena in July?
The average temperature in Helena in July is 19.7°C / 67.5°F, with rainfall of about 33 mm / 1.3 in — the warmest month of the year.
When is the driest month in Helena?
The driest month in Helena is February, with about 10 mm / 0.4 in of average monthly rainfall. Average temperature that month is -3°C / 26.6°F.
When is the wettest month in Helena?
The wettest month in Helena is June, with approximately 47 mm / 1.9 in of average monthly rainfall.