Best year time to visit Northumberland County

General weather information about Northumberland County

Average annual temperature is 15.5 °C

Absolute maximum temperature: 36.2 °C

Absolute minimum temperature: -7.8 °C

Number of sunny days: 182 days

Number of rainy days: 182 days

Number of snow days: 1 day

Look at detailed online map of Northumberland County

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

Northumberland County air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)20.026.325.731.429.731.436.235.035.629.626.020.3
Average daytime temperature (°C)12.314.014.923.022.927.831.630.226.922.114.712.7
Average temperature (°C)7.58.59.116.217.321.725.824.721.816.29.27.3
Average night temperature (°C)3.73.94.411.212.917.121.620.618.011.55.13.3
Absolute minimum temperature (°C)-2.1-7.8-3.13.77.112.918.117.614.04.1-4.8-2.0

Northumberland County 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)9.910.812.013.214.214.714.513.612.411.210.29.6
Daylight minimum duration (h)9.010.011.012.013.014.014.013.011.010.09.09.0
Sunshine mean duration (h)5.67.18.19.510.611.211.810.78.88.97.86.2
Precipitation (mm)66594112165156138551282853148
Sunny days1316171516126816222318
Rainy days1811141515182523149713
Snow days010000000000

Northumberland County - weather forecast by months

Northumberland County weather in januaryNorthumberland County weather in februaryNorthumberland County weather in marchNorthumberland County weather in aprilNorthumberland County weather in mayNorthumberland County weather in juneNorthumberland County weather in julyNorthumberland County weather in augustNorthumberland County weather in septemberNorthumberland County weather in octoberNorthumberland County weather in novemberNorthumberland County weather in december

Best time to visit Northumberland County:

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

  • June — 11.2(h)
  • July — 11.8(h)

The largest precipitation sum in Northumberland County is at

  • April — 121(mm)
  • June — 156(mm)
  • July — 138(mm)
  • September — 128(mm)
  • December — 148(mm)

    • Weather forecast in the closest to Northumberland County admin centers

    Weather forecast in the closest towns to Northumberland County

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    MapTrains schedule
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    Frequently asked questions

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