Best year time to visit Saint Marys

General weather information about Saint Marys

Average annual temperature is 9.7 °C

Absolute maximum temperature: 36.7 °C

Absolute minimum temperature: -26.0 °C

Number of sunny days: 183 days

Number of rainy days: 147 days

Number of snow days: 35 days

Look at detailed online map of Saint Marys

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

Saint Marys air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)5.58.311.926.131.132.732.436.734.429.916.512.0
Average daytime temperature (°C)-0.52.25.814.222.727.927.627.524.415.17.64.8
Average temperature (°C)-4.5-3.40.27.915.821.522.022.019.010.93.11.0
Average night temperature (°C)-7.6-7.7-4.03.310.015.816.917.314.97.4-0.2-1.5
Absolute minimum temperature (°C)-25.8-26.0-16.4-5.1-0.16.712.511.38.9-5.4-13.1-8.4

Saint Marys monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.310.511.913.414.715.415.114.012.511.09.79.0
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)4.06.27.08.011.312.812.511.29.36.56.64.2
Precipitation (mm)426164118573187130121941134
Sunny days151314131818121512122219
Rainy days6691513121916181788
Snow days1098200000204

Saint Marys - weather forecast by months

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

Best time to visit Saint Marys:

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

  • May — 11.3(h)
  • June — 12.8(h)
  • July — 12.5(h)
  • August — 11.2(h)

Months with the longest average daylight duration in Saint Marys:

  • June — 15.4(h)

The largest precipitation sum in Saint Marys is at

  • April — 118(mm)
  • August — 130(mm)
  • September — 121(mm)
  • October — 94(mm)

    • Weather forecast in the closest to Saint Marys admin centers

    Weather forecast in the closest towns to Saint Marys

    Explore Saint Marys

    See also
    MapTrains schedule
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    Frequently asked questions

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