Weather in Summit in September

General weather information about Summit

Average annual temperature is 18.0 °C

Absolute maximum temperature: 36.3 °C

Absolute minimum temperature: -2.9 °C

Number of sunny days: 180 days

Number of rainy days: 185 days

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

Summit air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)21.126.228.830.633.633.935.036.331.927.826.822.2
Average daytime temperature (°C)15.118.720.724.225.429.532.832.727.723.017.514.6
Average temperature (°C)10.013.214.517.919.823.827.326.922.417.712.29.6
Average night temperature (°C)6.18.99.212.215.018.822.622.317.813.38.25.7
Absolute minimum temperature (°C)-2.9-1.5-0.35.18.714.119.920.113.97.7-0.2-1.8

Summit monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.211.012.013.013.914.414.213.412.411.310.49.9
Daylight minimum duration (h)9.010.011.012.013.014.013.012.011.010.010.09.0
Sunshine mean duration (h)6.37.28.49.69.511.111.610.810.28.97.46.6
Precipitation (mm)146911031161339793133385743136
Sunny days1713171412128917221920
Rainy days14151416191823221391111
Snow days000000000000

Summit - weather forecast by months

Summit weather in januarySummit weather in februarySummit weather in marchSummit weather in aprilSummit weather in maySummit weather in juneSummit weather in julySummit weather in augustSummit weather in septemberSummit weather in octoberSummit weather in novemberSummit weather in december

Best time to visit Summit:

The best time to visit Summit during the most sunny months:

  • July — 11.6(h)

The largest precipitation sum in Summit is at

  • January — 146(mm)
  • May — 133(mm)
  • August — 133(mm)
  • December — 136(mm)

    • Weather forecast in the closest to Summit admin centers

    Weather forecast in the closest towns to Summit

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    MapTrains schedule
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    Frequently asked questions

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