Average monthly snow and rainfall in Helena (MT)
The mean monthly precipitation over the year in Helena (Montana), including rain, snow, hail.
- Helena has dry periods in January, February, March and December.
- On average, May is the wettest month with 59 mm of precipitation.
- On average, January is the driest month with 17 mm of precipitation.
- The average amount of annual precipitation is 372 mm.
Forecast for Helena (MT)
Sat May 04
19°C | -3°C
E 
14 km/h
14 km/h
partly cloudy and no rain
Sun May 05
16°C | 6°C
NW 11 km/h
11 km/h2.4 mm
broken clouds and chance of rain
Mon May 06
12°C | 7°C
W 32 km/h
32 km/h7.9 mm
overcast and rain
