Weather in City of Pittsburgh in September

General weather information about City of Pittsburgh

Average annual temperature is 12.6 °C

Absolute maximum temperature: 34.1 °C

Absolute minimum temperature: -11.2 °C

Number of sunny days: 148 days

Number of rainy days: 207 days

Number of snow days: 10 days

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* Weather data for City of Pittsburgh United States is based on climate observations for 2026 year

City of Pittsburgh air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)16.421.321.228.131.033.632.532.034.128.018.716.3
Average daytime temperature (°C)7.711.110.619.022.426.128.727.524.518.511.69.1
Average temperature (°C)3.64.54.912.115.920.123.321.919.113.76.35.0
Average night temperature (°C)0.6-0.30.66.39.914.919.017.414.69.82.32.0
Absolute minimum temperature (°C)-6.2-11.2-7.2-1.32.510.215.112.79.41.2-6.4-4.4

City of Pittsburgh monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.710.711.913.314.415.014.713.712.511.110.09.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)2.96.86.28.610.410.811.110.78.86.16.73.9
Precipitation (mm)1176110665821291209250964375
Sunny days714131420115712151812
Rainy days201316161119262418161018
Snow days412000000021

City of Pittsburgh - weather forecast by months

City of Pittsburgh weather in januaryCity of Pittsburgh weather in februaryCity of Pittsburgh weather in marchCity of Pittsburgh weather in aprilCity of Pittsburgh weather in mayCity of Pittsburgh weather in juneCity of Pittsburgh weather in julyCity of Pittsburgh weather in augustCity of Pittsburgh weather in septemberCity of Pittsburgh weather in octoberCity of Pittsburgh weather in novemberCity of Pittsburgh weather in december

Best time to visit City of Pittsburgh:

The best time to visit City of Pittsburgh during the most sunny months:

  • May — 10.4(h)
  • June — 10.8(h)
  • July — 11.1(h)
  • August — 10.7(h)

The largest precipitation sum in City of Pittsburgh is at

  • January — 117(mm)
  • June — 129(mm)
  • July — 120(mm)

    • Weather forecast in the closest to City of Pittsburgh admin centers

    Weather forecast in the closest towns to City of Pittsburgh

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    Frequently asked questions

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