Helena
Montana, USA
Long term weather forecast
Long term weather forecast

January weather forecast and Climate
Helena, MT

  • Average high temperature in January: 33.3°F

Warmest month (with highest average high temperature) is July (85.7°F).
Month with lowest average high temperature is December (31.7°F).

  • Average low temperature in January: 13°F

Month with highest average low temperature is July (54.3°F).
Coldest month (with lowest average low temperature) is December (11.9°F).

  • Average humidity in January: 66%

Month with highest relative humidity is December (68.1%).
Month with lowest relative humidity is July (46.4%).

  • Average rainfall in January: 0.4"

Wettest month (with highest rainfall) is June (2.1").
Driest month (with lowest rainfall) is February (0.3").

  • Average rainfall days in January: 6.2 days

Month with highest number of rainy days is June (11.2 days).
Month with lowest number of rainy days is February (5.9 days).

  • Average snowfall in January: 6.2"

Month with highest snowfall is December (7.3").
Months with lowest snowfall are June and July (0").

  • Average snowfall days in January: 5.6 days

Month with highest number of snowfall days is December (6 days).
Month with lowest number of snowfall days is July (0 days).

  • Average daylight in January: 9h

Month with longest days is June (Average daylight: 16h).
Months with shortest days are January, November and December (Average daylight: 9h).

  • Average sunshine in January: 3.9h

Month with most sunshine is July (Average sunshine: 11.9h).
Month with least sunshine is December (Average sunshine: 3.2h).

  • Average UV index in January: 1

Month with highest UV index is July (UV index 9).
Months with lowest UV index are January, November and December (UV index 1).

deutscheenglishespañolрусский中文