Best year time to visit Gaithersburg

General weather information about Gaithersburg

Average annual temperature is 13.9 °C

Absolute maximum temperature: 36.5 °C

Absolute minimum temperature: -10.2 °C

Number of sunny days: 182 days

Number of rainy days: 182 days

Number of snow days: 1 day

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

Gaithersburg air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)17.022.424.729.428.933.836.533.536.328.023.116.1
Average daytime temperature (°C)9.111.212.421.322.827.231.229.726.120.512.89.8
Average temperature (°C)5.15.86.514.616.321.025.224.020.614.97.15.3
Average night temperature (°C)1.81.31.68.910.215.420.319.315.910.32.71.7
Absolute minimum temperature (°C)-3.3-10.2-5.71.33.710.618.014.910.14.7-6.1-4.7

Gaithersburg 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)5.06.67.69.410.710.711.810.88.88.77.75.5
Precipitation (mm)67516510131119108441383260138
Sunny days13171416161451315172418
Rainy days18101714151626181514613
Snow days010000000000

Gaithersburg - weather forecast by months

Gaithersburg weather in januaryGaithersburg weather in februaryGaithersburg weather in marchGaithersburg weather in aprilGaithersburg weather in mayGaithersburg weather in juneGaithersburg weather in julyGaithersburg weather in augustGaithersburg weather in septemberGaithersburg weather in octoberGaithersburg weather in novemberGaithersburg weather in december

Best time to visit Gaithersburg:

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

  • July — 11.8(h)
  • August — 10.8(h)

The largest precipitation sum in Gaithersburg is at

  • April — 101(mm)
  • June — 119(mm)
  • July — 108(mm)
  • September — 138(mm)
  • December — 138(mm)

    • Weather forecast in the closest to Gaithersburg admin centers

    Weather forecast in the closest towns to Gaithersburg

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    Frequently asked questions

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