Best year time to visit Borough of Mercersburg

General weather information about Borough of Mercersburg

Average annual temperature is 13.3 °C

Absolute maximum temperature: 35.9 °C

Absolute minimum temperature: -10.7 °C

Number of sunny days: 179 days

Number of rainy days: 181 days

Number of snow days: 5 days

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* Weather data for Borough of Mercersburg United States is based on climate observations for 2026 year

Borough of Mercersburg air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)15.222.123.830.628.732.935.933.734.727.522.315.5
Average daytime temperature (°C)8.210.911.920.922.526.831.429.625.419.812.09.2
Average temperature (°C)4.44.85.713.615.920.425.123.419.714.46.44.8
Average night temperature (°C)1.30.20.97.79.614.419.618.415.09.71.91.2
Absolute minimum temperature (°C)-3.5-10.7-6.10.53.79.516.015.09.82.7-5.8-5.3

Borough of Mercersburg 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)9.710.712.013.314.414.914.713.712.511.210.09.4
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.76.97.69.210.611.012.111.28.97.97.74.7
Precipitation (mm)733978136381268682121556495
Sunny days13181115181471116172316
Rainy days1882015131624201414613
Snow days020000000012

Borough of Mercersburg - weather forecast by months

Borough of Mercersburg weather in januaryBorough of Mercersburg weather in februaryBorough of Mercersburg weather in marchBorough of Mercersburg weather in aprilBorough of Mercersburg weather in mayBorough of Mercersburg weather in juneBorough of Mercersburg weather in julyBorough of Mercersburg weather in augustBorough of Mercersburg weather in septemberBorough of Mercersburg weather in octoberBorough of Mercersburg weather in novemberBorough of Mercersburg weather in december

Best time to visit Borough of Mercersburg:

The best time to visit Borough of Mercersburg during the most sunny months:

  • June — 11.0(h)
  • July — 12.1(h)
  • August — 11.2(h)

The largest precipitation sum in Borough of Mercersburg is at

  • April — 136(mm)
  • June — 126(mm)
  • September — 121(mm)

    • Weather forecast in the closest to Borough of Mercersburg admin centers

    Weather forecast in the closest towns to Borough of Mercersburg

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    Frequently asked questions

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