Best year time to visit Saint Mary

General weather information about Saint Mary

Average annual temperature is 5.0 °C

Absolute maximum temperature: 32.1 °C

Absolute minimum temperature: -31.7 °C

Number of sunny days: 162 days

Number of rainy days: 126 days

Number of snow days: 77 days

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* Weather data for Saint Mary United States is based on climate observations for 2026 year

Saint Mary air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.92.35.216.423.926.132.132.123.921.77.17.9
Average daytime temperature (°C)-1.3-2.4-1.36.817.020.025.025.017.99.82.92.6
Average temperature (°C)-4.3-5.9-6.01.49.913.817.617.512.14.2-0.7-0.5
Average night temperature (°C)-6.5-8.6-9.7-2.43.78.09.811.07.20.4-4.0-3.6
Absolute minimum temperature (°C)-23.8-31.7-19.4-11.1-2.52.35.35.81.6-19.4-15.9-10.2

Saint Mary monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.810.211.913.715.316.115.714.312.610.89.28.3
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.09.08.08.0
Sunshine mean duration (h)5.05.08.39.711.412.414.011.89.56.55.44.3
Precipitation (mm)256135505171215241524132
Sunny days15101213118181616121219
Rainy days2125202213151414135
Snow days1417171200000557

Saint Mary - weather forecast by months

Saint Mary weather in januarySaint Mary weather in februarySaint Mary weather in marchSaint Mary weather in aprilSaint Mary weather in maySaint Mary weather in juneSaint Mary weather in julySaint Mary weather in augustSaint Mary weather in septemberSaint Mary weather in octoberSaint Mary weather in novemberSaint Mary weather in december

Best time to visit Saint Mary:

The best time to visit Saint Mary during the most sunny months:

  • May — 11.4(h)
  • June — 12.4(h)
  • July — 14.0(h)
  • August — 11.8(h)

Months with the longest average daylight duration in Saint Mary:

  • June — 16.1(h)
  • July — 15.7(h)

The largest precipitation sum in Saint Mary is at

  • February — 61(mm)
  • June — 71(mm)

    • Weather forecast in the closest to Saint Mary admin centers

    Weather forecast in the closest towns to Saint Mary

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    Frequently asked questions

    When is the best time to visit Saint Mary?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Saint Mary.
    What is the weather like in Saint Mary?
    See average temperature, rainfall and daylight hours for Saint Mary by month in the table above.
    How many sunny days does Saint Mary have?
    The monthly weather statistics above show sunshine and rainfall patterns for Saint Mary throughout the year.