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Union Gap, WA weather and climate

Yakima County, WA · population 6,511 · about 988 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Union Gap's own coordinates.

The year at a glance

Sunny days
224
clear or partly cloudy, per year
Precipitation
13 in
per year
Wet days
71
rain or snow per year
Snowfall
20 in
per year
Hot days
40
above 90 °F
Freezing nights
137
at or below 32 °F
Humidity
60%
average relative
Average temperature
51 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 39 °FDaily high, Feb: 47 °FDaily high, Mar: 57 °FDaily high, Apr: 65 °FDaily high, May: 74 °FDaily high, Jun: 80 °FDaily high, Jul: 89 °FDaily high, Aug: 88 °FDaily high, Sep: 79 °FDaily high, Oct: 64 °FDaily high, Nov: 49 °FDaily high, Dec: 38 °FDaily low, Jan: 24 °FDaily low, Feb: 27 °FDaily low, Mar: 31 °FDaily low, Apr: 36 °FDaily low, May: 44 °FDaily low, Jun: 50 °FDaily low, Jul: 56 °FDaily low, Aug: 54 °FDaily low, Sep: 46 °FDaily low, Oct: 36 °FDaily low, Nov: 28 °FDaily low, Dec: 24 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high394757657480898879644938
Daily low242731364450565446362824

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.01.02.0JanMarMayJulSepNovUnion Gap, Jan: 2.3 inUnion Gap, Feb: 1.6 inUnion Gap, Mar: 1.3 inUnion Gap, Apr: 0.8 inUnion Gap, May: 0.7 inUnion Gap, Jun: 0.4 inUnion Gap, Jul: 0.1 inUnion Gap, Aug: 0.1 inUnion Gap, Sep: 0.3 inUnion Gap, Oct: 1.2 inUnion Gap, Nov: 2.0 inUnion Gap, Dec: 2.6 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Union Gap2.31.61.30.80.70.40.10.10.31.22.02.6

Monthly sunny days

Days each month with clear or partly cloudy skies.

0102030JanMarMayJulSepNovUnion Gap, Jan: 11 daysUnion Gap, Feb: 13 daysUnion Gap, Mar: 16 daysUnion Gap, Apr: 17 daysUnion Gap, May: 20 daysUnion Gap, Jun: 23 daysUnion Gap, Jul: 29 daysUnion Gap, Aug: 28 daysUnion Gap, Sep: 25 daysUnion Gap, Oct: 20 daysUnion Gap, Nov: 13 daysUnion Gap, Dec: 11 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Union Gap111316172023292825201311

Compare Union Gap with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Washington city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).