Best year time to visit South Lewiston

General weather information about South Lewiston

Average annual temperature is 8.9 °C

Absolute maximum temperature: 32.4 °C

Absolute minimum temperature: -29.9 °C

Number of sunny days: 165 days

Number of rainy days: 167 days

Number of snow days: 33 days

Look at detailed online map of South Lewiston

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

South Lewiston air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)9.312.310.826.931.432.430.626.930.727.415.913.1
Average daytime temperature (°C)3.11.75.312.519.121.026.223.622.917.06.84.8
Average temperature (°C)-1.1-4.40.77.113.016.121.819.218.012.42.30.8
Average night temperature (°C)-4.7-9.7-3.42.97.712.418.315.514.28.8-1.0-2.2
Absolute minimum temperature (°C)-11.8-29.9-10.5-4.91.27.113.312.17.60.4-6.5-10.3

South Lewiston 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)9.310.511.913.514.815.415.114.012.511.09.79.0
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)4.36.77.37.411.57.49.69.88.66.46.74.5
Precipitation (mm)151407784141196206150969369203
Sunny days1014151521571017152016
Rainy days124615102524211316912
Snow days91010000000013

South Lewiston - weather forecast by months

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

Best time to visit South Lewiston:

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

  • May — 11.5(h)
  • July — 9.6(h)
  • August — 9.8(h)

Months with the longest average daylight duration in South Lewiston:

  • June — 15.4(h)

The largest precipitation sum in South Lewiston is at

  • June — 196(mm)
  • July — 206(mm)
  • December — 203(mm)

    • Weather forecast in the closest to South Lewiston admin centers

    Weather forecast in the closest towns to South Lewiston

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    Frequently asked questions

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