Best year time to visit St Marys

General weather information about St Marys

Average annual temperature is 20.8 °C

Absolute maximum temperature: 37.1 °C

Absolute minimum temperature: -1.0 °C

Number of sunny days: 146 days

Number of rainy days: 219 days

Look at detailed online map of St Marys

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

St Marys air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)27.429.730.829.631.535.637.136.434.428.327.225.5
Average daytime temperature (°C)20.423.924.025.626.830.333.232.829.825.521.318.6
Average temperature (°C)14.017.518.220.522.025.127.527.824.920.916.514.0
Average night temperature (°C)9.213.113.616.217.921.423.724.221.217.112.810.5
Absolute minimum temperature (°C)-1.03.72.99.69.917.022.221.916.79.42.31.0

St Marys monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.411.112.012.913.714.113.913.212.411.410.610.2
Daylight minimum duration (h)10.010.011.012.013.014.013.012.011.010.010.010.0
Sunshine mean duration (h)8.28.69.19.410.310.811.211.210.39.36.66.8
Precipitation (mm)4651701011471761421461447756110
Sunny days19211410743311181719
Rainy days12717202426282819131312
Snow days000000000000

St Marys - weather forecast by months

St Marys weather in januarySt Marys weather in februarySt Marys weather in marchSt Marys weather in aprilSt Marys weather in maySt Marys weather in juneSt Marys weather in julySt Marys weather in augustSt Marys weather in septemberSt Marys weather in octoberSt Marys weather in novemberSt Marys weather in december

Best time to visit St Marys:

The largest precipitation sum in St Marys is at

  • May — 147(mm)
  • June — 176(mm)
  • July — 142(mm)
  • August — 146(mm)
  • September — 144(mm)

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    Frequently asked questions

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