Best year time to visit McLean (historical)

General weather information about McLean (historical)

Average annual temperature is 11.9 °C

Absolute maximum temperature: 30.8 °C

Absolute minimum temperature: -12.2 °C

Number of sunny days: 139 days

Number of rainy days: 211 days

Number of snow days: 15 days

Look at detailed online map of McLean (historical)

* Weather data for McLean (historical) United States is based on climate observations for 2026 year

McLean (historical) air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)20.020.121.527.326.429.630.828.729.525.821.118.1
Average daytime temperature (°C)8.611.411.318.520.023.427.025.622.717.611.99.1
Average temperature (°C)3.75.45.412.014.318.022.020.717.712.76.14.6
Average night temperature (°C)0.40.90.76.49.213.117.916.713.78.91.81.3
Absolute minimum temperature (°C)-9.2-12.2-10.1-2.61.45.913.411.38.10.3-8.3-6.3

McLean (historical) monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.014.013.011.010.09.0
Daylight mean duration (h)9.810.712.013.214.314.914.613.712.411.210.19.5
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)3.46.47.08.89.510.611.810.69.07.46.94.6
Precipitation (mm)132961106711889117136938665106
Sunny days61091415136913151811
Rainy days221518151617252217161018
Snow days334100000022

McLean (historical) - weather forecast by months

McLean (historical) weather in januaryMcLean (historical) weather in februaryMcLean (historical) weather in marchMcLean (historical) weather in aprilMcLean (historical) weather in mayMcLean (historical) weather in juneMcLean (historical) weather in julyMcLean (historical) weather in augustMcLean (historical) weather in septemberMcLean (historical) weather in octoberMcLean (historical) weather in novemberMcLean (historical) weather in december

Best time to visit McLean (historical):

The best time to visit McLean (historical) during the most sunny months:

  • June — 10.6(h)
  • July — 11.8(h)
  • August — 10.6(h)

The largest precipitation sum in McLean (historical) is at

  • January — 132(mm)
  • August — 136(mm)

    • Weather forecast in the closest to McLean (historical) admin centers

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    Frequently asked questions

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