Weather in LaSalle County in October

General weather information about LaSalle County

Average annual temperature is 12.2 °C

Absolute maximum temperature: 36.9 °C

Absolute minimum temperature: -19.6 °C

Number of sunny days: 188 days

Number of rainy days: 164 days

Number of snow days: 13 days

Look at detailed online map of LaSalle County

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

LaSalle County air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)13.214.721.526.332.334.135.436.934.228.720.515.4
Average daytime temperature (°C)3.76.79.318.124.529.529.329.025.517.910.77.5
Average temperature (°C)-0.31.13.810.917.822.723.723.220.213.25.43.6
Average night temperature (°C)-3.2-3.1-0.35.011.616.318.418.215.89.31.21.0
Absolute minimum temperature (°C)-19.6-18.0-11.8-1.51.89.413.711.79.8-1.7-10.2-7.6

LaSalle County 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)9.610.611.913.314.515.114.813.812.511.19.99.2
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)3.37.66.89.310.912.312.110.88.67.17.34.3
Precipitation (mm)56711059713517178791651493265
Sunny days111814152019131711122216
Rainy days1281615111118141918715
Snow days821000000110

LaSalle County - weather forecast by months

LaSalle County weather in januaryLaSalle County weather in februaryLaSalle County weather in marchLaSalle County weather in aprilLaSalle County weather in mayLaSalle County weather in juneLaSalle County weather in julyLaSalle County weather in augustLaSalle County weather in septemberLaSalle County weather in octoberLaSalle County weather in novemberLaSalle County weather in december

Best time to visit LaSalle County:

The best time to visit LaSalle County during the most sunny months:

  • May — 10.9(h)
  • June — 12.3(h)
  • July — 12.1(h)
  • August — 10.8(h)

The largest precipitation sum in LaSalle County is at

  • May — 135(mm)
  • July — 178(mm)
  • September — 165(mm)
  • October — 149(mm)

    • Weather forecast in the closest to LaSalle County admin centers

    Weather forecast in the closest towns to LaSalle County

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    Frequently asked questions

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