Best year time to visit South Merrimack

General weather information about South Merrimack

Average annual temperature is 10.3 °C

Absolute maximum temperature: 33.6 °C

Absolute minimum temperature: -27.6 °C

Number of sunny days: 163 days

Number of rainy days: 186 days

Number of snow days: 16 days

Look at detailed online map of South Merrimack

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

South Merrimack air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)10.214.514.831.431.033.631.728.832.728.018.315.7
Average daytime temperature (°C)4.74.77.215.421.223.527.625.222.818.38.47.3
Average temperature (°C)0.6-1.32.09.214.417.822.620.218.013.23.42.7
Average night temperature (°C)-2.9-6.6-2.24.58.613.318.416.214.49.2-0.4-0.5
Absolute minimum temperature (°C)-11.2-27.6-6.7-4.21.36.913.512.27.40.8-5.4-7.3

South Merrimack monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.410.511.913.414.615.315.013.912.511.09.89.1
Daylight minimum duration (h)9.09.011.012.014.015.014.013.011.010.09.09.0
Sunshine mean duration (h)4.26.47.08.111.48.610.19.57.67.36.95.2
Precipitation (mm)16045130959214124417118012050176
Sunny days101415161964913182217
Rainy days1591314122427221713713
Snow days653000000011

South Merrimack - weather forecast by months

South Merrimack weather in januarySouth Merrimack weather in februarySouth Merrimack weather in marchSouth Merrimack weather in aprilSouth Merrimack weather in maySouth Merrimack weather in juneSouth Merrimack weather in julySouth Merrimack weather in augustSouth Merrimack weather in septemberSouth Merrimack weather in octoberSouth Merrimack weather in novemberSouth Merrimack weather in december

Best time to visit South Merrimack:

The best time to visit South Merrimack during the most sunny months:

  • May — 11.4(h)
  • July — 10.1(h)

Months with the longest average daylight duration in South Merrimack:

  • June — 15.3(h)

The largest precipitation sum in South Merrimack is at

  • July — 244(mm)
  • August — 171(mm)
  • September — 180(mm)
  • December — 176(mm)

    • Weather forecast in the closest to South Merrimack admin centers

    Weather forecast in the closest towns to South Merrimack

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    Frequently asked questions

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