Best year time to visit Oswego

General weather information about Oswego

Average annual temperature is 7.8 °C

Absolute maximum temperature: 40.2 °C

Absolute minimum temperature: -31.4 °C

Number of sunny days: 225 days

Number of rainy days: 102 days

Number of snow days: 38 days

Look at detailed online map of Oswego

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

Oswego air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)5.111.54.826.931.133.340.236.835.422.912.210.2
Average daytime temperature (°C)-2.61.5-1.612.124.027.630.330.825.712.95.54.0
Average temperature (°C)-7.3-5.4-6.94.416.321.223.123.018.37.00.6-1.1
Average night temperature (°C)-11.0-10.3-11.4-1.49.314.916.216.412.02.7-3.1-4.8
Absolute minimum temperature (°C)-26.1-31.4-19.2-12.31.89.28.512.77.5-15.9-13.1-9.9

Oswego monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.015.015.013.011.09.08.0
Daylight mean duration (h)8.910.211.913.715.216.015.614.312.610.89.38.4
Daylight minimum duration (h)8.09.011.012.014.015.015.013.011.010.08.08.0
Sunshine mean duration (h)4.57.67.49.611.412.713.411.610.36.97.06.0
Precipitation (mm)714252949341515304295
Sunny days241720191113191920172224
Rainy days230820171212101143
Snow days5811300000344

Oswego - weather forecast by months

Oswego weather in januaryOswego weather in februaryOswego weather in marchOswego weather in aprilOswego weather in mayOswego weather in juneOswego weather in julyOswego weather in augustOswego weather in septemberOswego weather in octoberOswego weather in novemberOswego weather in december

Best time to visit Oswego:

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

  • May — 11.4(h)
  • June — 12.7(h)
  • July — 13.4(h)
  • August — 11.6(h)

Months with the longest average daylight duration in Oswego:

  • June — 16.0(h)
  • July — 15.6(h)

The largest precipitation sum in Oswego is at

  • May — 49(mm)
  • June — 34(mm)
  • September — 30(mm)
  • October — 42(mm)

    • Weather forecast in the closest to Oswego admin centers

    Weather forecast in the closest towns to Oswego

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    Frequently asked questions

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