Best year time to visit Mercer County

General weather information about Mercer County

Average annual temperature is 12.0 °C

Absolute maximum temperature: 35.2 °C

Absolute minimum temperature: -18.1 °C

Number of sunny days: 201 days

Number of rainy days: 146 days

Number of snow days: 18 days

Look at detailed online map of Mercer County

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

Mercer County air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)14.412.121.725.332.634.234.335.232.129.718.614.6
Average daytime temperature (°C)3.16.08.517.525.229.528.727.825.517.810.27.0
Average temperature (°C)-1.10.33.210.618.623.223.422.920.013.25.33.1
Average night temperature (°C)-4.0-4.1-0.85.012.417.018.418.615.59.41.30.6
Absolute minimum temperature (°C)-17.8-18.1-12.2-2.23.39.313.811.310.6-3.0-11.6-7.9

Mercer 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)9.610.611.913.314.515.114.813.812.511.19.99.3
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)4.07.16.79.511.612.412.510.99.87.37.44.5
Precipitation (mm)57881093830271026867651876
Sunny days151614172119131714172315
Rainy days891612101118141614513
Snow days831100000023

Mercer County - weather forecast by months

Mercer County weather in januaryMercer County weather in februaryMercer County weather in marchMercer County weather in aprilMercer County weather in mayMercer County weather in juneMercer County weather in julyMercer County weather in augustMercer County weather in septemberMercer County weather in octoberMercer County weather in novemberMercer County weather in december

Best time to visit Mercer County:

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

  • May — 11.6(h)
  • June — 12.4(h)
  • July — 12.5(h)
  • August — 10.9(h)

The largest precipitation sum in Mercer County is at

  • February — 88(mm)
  • March — 109(mm)
  • July — 102(mm)

    • Weather forecast in the closest to Mercer County admin centers

    Weather forecast in the closest towns to Mercer County

    Explore Mercer County

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

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