Monthly weather forecast and climate
Boulder, MT

What is the coldest month in Boulder?

With an average high-temperature of 33.1°F (0.6°C) and an average low-temperature of 9°F (-12.8°C), January is the coldest month in Boulder, Montana.

How much does it rain in Boulder?

Throughout the year, 11.3" (286.9mm) of rain is accumulated.

What is the driest month in Boulder?

The month with the least rainfall in Boulder is February when 0.3" (7.6mm) of precipitation is typically aggregated.

What is the wettest month in Boulder?

The month with the most rainfall is June when 2.1" (53.3mm) of precipitation is typically aggregated.

What is the warmest month in Boulder?

July and August, with an average high-temperature of 82°F (27.8°C), are warmest months in Boulder, Montana.
Average rainfall - Boulder, MT
Average daylight - Boulder, MT

The month with the longest days is June (Average daylight: 15.7h).
The month with shortest days is December (Average daylight: 8.7h).

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