Best year time to visit Saint Johnstown

General weather information about Saint Johnstown

Average annual temperature is 14.9 °C

Absolute maximum temperature: 35.2 °C

Absolute minimum temperature: -8.8 °C

Number of sunny days: 179 days

Number of rainy days: 184 days

Number of snow days: 2 days

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

Saint Johnstown air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.721.222.729.328.230.835.233.134.527.823.917.4
Average daytime temperature (°C)11.011.813.421.321.826.530.829.526.221.613.911.4
Average temperature (°C)6.87.07.715.116.421.125.924.721.516.38.87.2
Average night temperature (°C)3.42.52.910.411.916.321.820.917.912.34.93.7
Absolute minimum temperature (°C)-3.8-8.8-3.11.85.610.619.116.813.56.9-4.2-2.2

Saint Johnstown monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.712.013.214.314.814.613.712.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.47.17.69.711.111.011.610.38.38.87.75.5
Precipitation (mm)69629211770135113711072166150
Sunny days13151616151291212192317
Rainy days18121414161822191812714
Snow days011000000000

Saint Johnstown - weather forecast by months

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

Best time to visit Saint Johnstown:

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

  • May — 11.1(h)
  • June — 11.0(h)
  • July — 11.6(h)

The largest precipitation sum in Saint Johnstown is at

  • April — 117(mm)
  • June — 135(mm)
  • July — 113(mm)
  • December — 150(mm)

    • Weather forecast in the closest to Saint Johnstown admin centers

    Weather forecast in the closest towns to Saint Johnstown

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    Frequently asked questions

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