Best year time to visit Valley Forge

General weather information about Valley Forge

Average annual temperature is 13.5 °C

Absolute maximum temperature: 35.1 °C

Absolute minimum temperature: -10.4 °C

Number of sunny days: 185 days

Number of rainy days: 176 days

Number of snow days: 4 days

Look at detailed online map of Valley Forge

* Weather data for Valley Forge United States is based on climate observations for 2026 year

Valley Forge air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)18.120.521.629.428.833.935.132.534.927.522.417.1
Average daytime temperature (°C)8.710.411.420.122.626.930.729.024.819.712.09.5
Average temperature (°C)5.05.05.913.816.020.625.123.619.714.56.75.3
Average night temperature (°C)1.90.61.18.59.715.220.218.915.510.12.41.8
Absolute minimum temperature (°C)-4.0-10.4-5.61.43.610.816.814.79.33.5-5.8-4.4

Valley Forge monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.014.014.013.011.010.09.0
Daylight mean duration (h)9.710.712.013.314.415.014.713.712.511.110.09.4
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.76.97.49.211.510.712.310.68.48.47.74.7
Precipitation (mm)7751561312110899691705260138
Sunny days12161316181291415212217
Rainy days19101714131822171510813
Snow days021000000001

Valley Forge - weather forecast by months

Valley Forge weather in januaryValley Forge weather in februaryValley Forge weather in marchValley Forge weather in aprilValley Forge weather in mayValley Forge weather in juneValley Forge weather in julyValley Forge weather in augustValley Forge weather in septemberValley Forge weather in octoberValley Forge weather in novemberValley Forge weather in december

Best time to visit Valley Forge:

The best time to visit Valley Forge during the most sunny months:

  • May — 11.5(h)
  • June — 10.7(h)
  • July — 12.3(h)

The largest precipitation sum in Valley Forge is at

  • April — 131(mm)
  • June — 108(mm)
  • September — 170(mm)
  • December — 138(mm)

    • Weather forecast in the closest to Valley Forge admin centers

    Weather forecast in the closest towns to Valley Forge

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    Frequently asked questions

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