Best year time to visit O'Brien County

General weather information about O'Brien County

Average annual temperature is 9.5 °C

Absolute maximum temperature: 36.4 °C

Absolute minimum temperature: -25.2 °C

Number of sunny days: 216 days

Number of rainy days: 122 days

Number of snow days: 27 days

Look at detailed online map of O'Brien County

* Weather data for O'Brien County United States is based on climate observations for 2026 year

O'Brien County air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.811.713.527.931.131.335.036.433.731.217.411.1
Average daytime temperature (°C)-4.20.04.815.324.328.127.328.225.916.09.45.0
Average temperature (°C)-7.3-5.6-1.28.317.622.321.722.620.111.03.90.3
Average night temperature (°C)-10.2-10.3-5.23.111.516.716.218.015.27.1-0.4-2.8
Absolute minimum temperature (°C)-25.2-25.2-15.1-5.60.78.29.310.59.2-6.9-11.1-8.0

O'Brien County monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.715.315.013.912.511.09.79.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)4.16.86.89.011.412.812.311.49.77.66.85.1
Precipitation (mm)655346508281359432166266
Sunny days211817151815151814152624
Rainy days5561213151613161425
Snow days558300000222

O'Brien County - weather forecast by months

O'Brien County weather in januaryO'Brien County weather in februaryO'Brien County weather in marchO'Brien County weather in aprilO'Brien County weather in mayO'Brien County weather in juneO'Brien County weather in julyO'Brien County weather in augustO'Brien County weather in septemberO'Brien County weather in octoberO'Brien County weather in novemberO'Brien County weather in december

Best time to visit O'Brien County:

The best time to visit O'Brien County during the most sunny months:

  • May — 11.4(h)
  • June — 12.8(h)
  • July — 12.3(h)
  • August — 11.4(h)

Months with the longest average daylight duration in O'Brien County:

  • June — 15.3(h)

The largest precipitation sum in O'Brien County is at

  • May — 82(mm)
  • August — 94(mm)
  • October — 166(mm)

    • Weather forecast in the closest to O'Brien County admin centers

    Weather forecast in the closest towns to O'Brien County

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    Frequently asked questions

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