Best year time to visit City of Sumas

General weather information about City of Sumas

Average annual temperature is 9.8 °C

Absolute maximum temperature: 32.5 °C

Absolute minimum temperature: -8.9 °C

Number of sunny days: 165 days

Number of rainy days: 195 days

Number of snow days: 5 days

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* Weather data for City of Sumas United States is based on climate observations for 2026 year

City of Sumas air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)10.99.315.624.532.029.330.632.527.523.315.712.9
Average daytime temperature (°C)6.45.710.412.021.121.425.326.420.614.98.57.5
Average temperature (°C)3.72.24.46.714.415.018.218.914.49.94.74.9
Average night temperature (°C)1.7-0.10.32.58.99.912.413.29.96.32.12.8
Absolute minimum temperature (°C)-5.1-8.9-4.8-3.52.75.39.19.64.5-5.2-3.5-2.1

City of Sumas monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.010.012.014.015.016.016.015.013.011.09.08.0
Daylight mean duration (h)8.810.211.913.715.316.115.714.312.610.89.28.3
Daylight minimum duration (h)8.09.010.012.014.015.015.013.011.09.08.08.0
Sunshine mean duration (h)2.63.37.36.211.010.913.011.78.85.44.32.3
Precipitation (mm)1041239815824371823105112215230
Sunny days10496211827241216144
Rainy days1922212410124718151627
Snow days221000000000

City of Sumas - weather forecast by months

City of Sumas weather in januaryCity of Sumas weather in februaryCity of Sumas weather in marchCity of Sumas weather in aprilCity of Sumas weather in mayCity of Sumas weather in juneCity of Sumas weather in julyCity of Sumas weather in augustCity of Sumas weather in septemberCity of Sumas weather in octoberCity of Sumas weather in novemberCity of Sumas weather in december

Best time to visit City of Sumas:

The best time to visit City of Sumas during the most sunny months:

  • May — 11.0(h)
  • June — 10.9(h)
  • July — 13.0(h)
  • August — 11.7(h)

Months with the longest average daylight duration in City of Sumas:

  • June — 16.1(h)
  • July — 15.7(h)

The largest precipitation sum in City of Sumas is at

  • April — 158(mm)
  • November — 215(mm)
  • December — 230(mm)

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    Frequently asked questions

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