Weather in Onalaska in August

General weather information about Onalaska

Average annual temperature is 21.3 °C

Absolute maximum temperature: 40.9 °C

Absolute minimum temperature: 1.6 °C

Number of sunny days: 175 days

Number of rainy days: 190 days

Look at detailed online map of Onalaska

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

Onalaska air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)23.826.828.731.031.437.737.840.937.735.028.125.4
Average daytime temperature (°C)17.519.223.123.928.133.735.637.533.426.719.818.0
Average temperature (°C)13.014.018.019.023.628.130.531.628.021.415.312.8
Average night temperature (°C)9.710.414.315.420.024.126.426.723.817.811.98.9
Absolute minimum temperature (°C)2.11.64.310.814.620.924.323.218.77.94.22.3

Onalaska monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.013.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.411.112.012.913.714.113.913.212.411.410.610.2
Daylight minimum duration (h)10.010.011.012.013.014.013.012.011.010.010.010.0
Sunshine mean duration (h)6.26.97.57.79.111.012.512.210.88.76.37.9
Precipitation (mm)229871332331251062313281427062
Sunny days15131111137182113171719
Rainy days161520191823131017141312
Snow days000000000000

Onalaska - weather forecast by months

Onalaska weather in januaryOnalaska weather in februaryOnalaska weather in marchOnalaska weather in aprilOnalaska weather in mayOnalaska weather in juneOnalaska weather in julyOnalaska weather in augustOnalaska weather in septemberOnalaska weather in octoberOnalaska weather in novemberOnalaska weather in december

Best time to visit Onalaska:

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

  • July — 12.5(h)
  • August — 12.2(h)

The largest precipitation sum in Onalaska is at

  • January — 229(mm)
  • March — 133(mm)
  • April — 233(mm)
  • October — 142(mm)

    • Weather forecast in the closest to Onalaska admin centers

    Weather forecast in the closest towns to Onalaska

    Explore Onalaska

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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