Best year time to visit City of Portal

General weather information about City of Portal

Average annual temperature is 5.6 °C

Absolute maximum temperature: 34.3 °C

Absolute minimum temperature: -31.1 °C

Number of sunny days: 212 days

Number of rainy days: 112 days

Number of snow days: 41 days

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

City of Portal air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.84.33.023.627.531.433.234.333.320.110.47.2
Average daytime temperature (°C)-4.9-3.5-4.96.821.926.425.926.623.39.93.71.5
Average temperature (°C)-8.9-8.9-9.90.814.520.219.420.017.05.6-0.9-3.0
Average night temperature (°C)-12.1-13.5-14.1-3.98.014.113.814.711.52.0-4.4-6.4
Absolute minimum temperature (°C)-26.9-31.1-22.6-18.0-2.78.67.49.96.0-16.8-13.3-12.3

City of Portal 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)2.96.77.69.010.913.112.910.79.96.05.45.6
Precipitation (mm)97244686453610910891423
Sunny days221621171614121719141826
Rainy days6201015161914111252
Snow days31010300000573

City of Portal - weather forecast by months

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

Best time to visit City of Portal:

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

  • May — 10.9(h)
  • June — 13.1(h)
  • July — 12.9(h)
  • August — 10.7(h)

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

  • June — 16.1(h)
  • July — 15.7(h)

The largest precipitation sum in City of Portal is at

  • May — 86(mm)
  • August — 109(mm)
  • October — 89(mm)

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    Frequently asked questions

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