Best year time to visit Manassas

General weather information about Manassas

Average annual temperature is 19.9 °C

Absolute maximum temperature: 38.7 °C

Absolute minimum temperature: -1.1 °C

Number of sunny days: 174 days

Number of rainy days: 191 days

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

Manassas air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)25.129.031.232.132.135.338.737.934.629.127.124.6
Average daytime temperature (°C)18.621.923.626.227.131.435.334.330.325.020.016.7
Average temperature (°C)12.415.917.019.721.525.528.928.624.519.214.311.4
Average night temperature (°C)7.611.411.614.316.620.724.124.019.914.510.07.5
Absolute minimum temperature (°C)-1.11.40.87.510.316.721.721.215.88.4-0.4-0.3

Manassas monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)10.011.012.013.014.014.014.013.012.011.010.010.0
Daylight mean duration (h)10.311.012.013.013.814.214.013.312.411.410.510.1
Daylight minimum duration (h)10.010.011.012.013.014.013.012.011.010.010.010.0
Sunshine mean duration (h)7.18.18.89.99.810.811.211.510.08.96.86.6
Precipitation (mm)13313083114101129109184674944146
Sunny days17151514878915232023
Rainy days1413161623232322158108
Snow days000000000000

Manassas - weather forecast by months

Manassas weather in januaryManassas weather in februaryManassas weather in marchManassas weather in aprilManassas weather in mayManassas weather in juneManassas weather in julyManassas weather in augustManassas weather in septemberManassas weather in octoberManassas weather in novemberManassas weather in december

Best time to visit Manassas:

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

  • August — 11.5(h)

The largest precipitation sum in Manassas is at

  • August — 184(mm)
  • December — 146(mm)

    • Weather forecast in the closest to Manassas admin centers

    Weather forecast in the closest towns to Manassas

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    Frequently asked questions

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