Yakima County Climate

Yakima County, Washington

JanFebMarAprMayJunJulAugSepOctNovDec50.9°AVG °F

Avg Annual Temp

50.9°F

Annual Precip

8.1"

Annual Snowfall

16.9"

Extreme Heat Days

38.883333333333326

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.1"
0.7"
0.6"
0.6"
0.8"
0.6"
0.2"
0.2"
0.3"
0.7"
0.9"
1.3"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring43°59°2.0"Summer65°72°1.0"Fall38°63°1.9"Winter30°36°3.1"20°40°60°80°100°

National Comparison

Warmer than 34% of US counties
Wetter than 1% of US counties
More seasonal variation than 37% of US counties

Climate Profile

About Yakima County Weather

Yakima’s High Desert Climate Profile

Yakima County averages 50.9°F annually, which is slightly below the national median of 53°F. It is one of the driest regions in the country, characterized by low precipitation and high sun.

Warmer and Drier than Washington

The county is warmer than the 49.9°F state average but far drier than the 38.5-inch state precipitation average. It receives only 8.1 inches of rain per year, creating a desert-like environment.

The Driest County in the Region

Yakima's 8.1 inches of rain is remarkably lower than Walla Walla’s 15.8 inches. Despite the aridity, it still manages 16.9 inches of annual snow, more than its neighbors to the south.

Toasty Summers and Crisp Winters

July averages a warm 72.4°F, and the county faces 39 days of extreme heat above 90°F. Winters are cold and dry, with a December-February average of 32.7°F.

Manage Water and Extreme Heat

Drought-resistant landscaping is a must given the low 8.1 inches of annual rainfall. High-efficiency cooling is also essential to navigate the nearly 40 days of extreme summer heat.

Frequently Asked Questions

What is the average temperature in Yakima County?
The average annual temperature in Yakima County, WA is 50.9°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Yakima County get?
Yakima County receives an average of 8.1 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Yakima County?
Yes, Yakima County receives an average of 16.9 inches of snowfall per year according to NOAA climate normals.
How hot does Yakima County get in summer?
The average summer temperature (June-August) in Yakima County is 69.5°F. The county experiences an average of 38.883333333333326 days per year above 90°F.
How cold are winters in Yakima County?
The average winter temperature (December-February) in Yakima County is 32.7°F. January, typically the coldest month, averages 31.3°F.

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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.

Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.

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