Weather in St. Elmo in September

General weather information about St. Elmo

Average annual temperature is 8.0 °C

Absolute maximum temperature: 33.3 °C

Absolute minimum temperature: -31.5 °C

Number of sunny days: 122 days

Number of rainy days: 192 days

Number of snow days: 51 days

Look at detailed online map of St. Elmo

* Weather data for St. Elmo Canada is based on climate observations for 2026 year

St. Elmo air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)4.211.97.726.031.333.332.427.231.928.715.68.6
Average daytime temperature (°C)-1.2-0.43.113.219.424.226.723.822.816.05.32.0
Average temperature (°C)-4.9-6.4-1.26.512.918.521.618.917.411.91.1-1.2
Average night temperature (°C)-8.4-11.0-4.71.16.813.617.414.812.98.6-2.0-3.8
Absolute minimum temperature (°C)-20.7-31.5-11.1-9.00.18.011.710.17.4-3.1-8.2-15.5

St. Elmo 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)9.210.411.913.514.915.615.314.112.511.09.58.8
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)2.85.36.07.710.810.011.010.09.85.35.02.5
Precipitation (mm)112787410474901581316113448107
Sunny days768132093422101010
Rainy days9111216112128278211315
Snow days151111100000076

St. Elmo - weather forecast by months

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

Best time to visit St. Elmo:

The best time to visit St. Elmo during the most sunny months:

  • May — 10.8(h)
  • June — 10.0(h)
  • July — 11.0(h)
  • August — 10.0(h)
  • September — 9.8(h)

Months with the longest average daylight duration in St. Elmo:

  • June — 15.6(h)
  • July — 15.3(h)

The largest precipitation sum in St. Elmo is at

  • July — 158(mm)
  • August — 131(mm)
  • October — 134(mm)

    • Weather forecast in the closest to St. Elmo admin centers

    Weather forecast in the closest towns to St. Elmo

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    Frequently asked questions

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