Omak, WA

Climate overview — based on NOAA 1991-2020 normals from OMAK AP, WA US.

BSk Semi-arid (cold) climate 7b USDA hardiness Zone 7b

Year-round temperatures (°F)

20° 40° 60° 80° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Omak has an annual average temperature of 49.9°F with about 11.6 inches of precipitation per year. The warmest month is July (average high 89.4°F), and the coldest is January (average low 23.3°F). December is typically the wettest month (1.95 in) and August the driest (0.27 in).

Pleasant months
1 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
45.8°F
warmest to coldest month
Heating need
5,937
Cooling need
498

Best time to visit Omak

Full guide →

Climate change signal

All-time records →

184 of 366 (50.3%) of Omak's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1990s
25
2000s
102
2010s
113
2020s
126

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 32.8°F 23.3°F 28.0°F 1.33 in 10
February 39.8°F 25.2°F 32.5°F 0.91 in 8
March 52.5°F 31.1°F 41.8°F 1.06 in 8
April 62.8°F 36.8°F 49.8°F 0.83 in 6
May 72.4°F 45.1°F 58.8°F 1.19 in 8
June 79.1°F 51.1°F 65.1°F 0.98 in 7
July 89.4°F 58.1°F 73.7°F 0.52 in 3
August 88.8°F 56.8°F 72.8°F 0.27 in 2
September 78.2°F 48.4°F 63.3°F 0.40 in 4
October 60.7°F 37.5°F 49.1°F 0.92 in 6
November 43.0°F 28.9°F 35.9°F 1.24 in 9
December 32.5°F 23.3°F 27.9°F 1.95 in 12

Climate twins of Omak

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

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