Best year time to visit Union Gap

General weather information about Union Gap

Average annual temperature is 12.2 °C

Absolute maximum temperature: 42.9 °C

Absolute minimum temperature: -10.0 °C

Number of sunny days: 231 days

Number of rainy days: 122 days

Number of snow days: 12 days

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* Weather data for Union Gap United States is based on climate observations for 2026 year

Union Gap air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)10.311.314.630.935.435.338.742.933.327.114.310.2
Average daytime temperature (°C)5.07.210.615.528.029.734.733.826.018.88.85.6
Average temperature (°C)0.71.54.49.119.921.826.025.518.511.74.12.1
Average night temperature (°C)-2.5-2.5-0.53.412.914.517.217.511.95.80.5-0.2
Absolute minimum temperature (°C)-10.0-9.7-4.5-3.26.88.612.812.34.0-5.3-5.0-5.1

Union Gap monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.08.0
Daylight mean duration (h)9.110.311.913.615.015.815.414.212.610.99.48.6
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.08.08.0
Sunshine mean duration (h)4.96.68.29.212.813.113.911.99.78.25.22.9
Precipitation (mm)35113237135131116154372
Sunny days171913112222292522211812
Rainy days125151998268101117
Snow days243000000012

Union Gap - weather forecast by months

Union Gap weather in januaryUnion Gap weather in februaryUnion Gap weather in marchUnion Gap weather in aprilUnion Gap weather in mayUnion Gap weather in juneUnion Gap weather in julyUnion Gap weather in augustUnion Gap weather in septemberUnion Gap weather in octoberUnion Gap weather in novemberUnion Gap weather in december

Best time to visit Union Gap:

The best time to visit Union Gap during the most sunny months:

  • May — 12.8(h)
  • June — 13.1(h)
  • July — 13.9(h)
  • August — 11.9(h)

Months with the longest average daylight duration in Union Gap:

  • June — 15.8(h)
  • July — 15.4(h)

The largest precipitation sum in Union Gap is at

  • January — 35(mm)
  • April — 37(mm)
  • November — 43(mm)
  • December — 72(mm)

    • Weather forecast in the closest to Union Gap admin centers

    Weather forecast in the closest towns to Union Gap

    Explore Union Gap

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    Frequently asked questions

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