Park climate1991–2020 climate normals1,410 m source elevationNASA POWER

Atmospheric data for a representative high-elevation coordinate within the Washington landscape

Okanogan–Wenatchee National Forest Twelve-Month Climate Normals and Monthly Atmospheric Patterns

Name: Okanogan–Wenatchee National Forest monthly climate normals
Creator: NASA POWER

Analyze the annual rhythm of Okanogan–Wenatchee National Forest through long-term climate normals derived from NASA POWER datasets between 1991 and 2020. Monthly patterns provide a foundation for understanding mean temperature, average precipitation rates, relative humidity, wind speed, and daylight hours at a single representative elevation point. These records offer a precise, evergreen view of the forest environment rather than short-term weather or forecast data.

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A flat-style digital illustration showing a small, dark-green alpine lake with a tiny island in the center, surrounded by jagged, snow-dusted mountain peaks and evergreen forests in the foreground.

Annual climate pattern

Monthly averages of temperature range and daily precipitation rates across twelve months

Okanogan Wenatchee National Forest Annual Climate Normals and Temperature Patterns

Okanogan Wenatchee National Forest records average monthly temperatures moving from subzero winter lows to peak summer maximums across the calendar year. Long term climatology normals from a representative coordinate track average daily precipitation rates alongside these twelve monthly thermal values.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: 2.4 °C
Warmest month: August
Coolest month: December
Wettest month: November

Twelve-month climate

Compare long-term monthly normals across average temperature bounds, precipitation rates, humidity, wind, and calculated daylight.

Okanogan–Wenatchee National Forest Climate By Month: Twelve-Month Temperature, Precipitation, and Daylight Records

Evaluating twelve-month climate normals across average temperature bounds and average daily precipitation rates reveals the long-term environmental patterns spanning the calendar year. Analyzing relative humidity, wind speed, and calculated daylight hours at a representative coordinate provides complete meteorological context.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	-6.7 °C-21° to 1.2°	4.6 mm/day	96.1%	1.8 m/s	8.6 hours
February	-6.2 °C-19.4° to 1.4°	3.5 mm/day	96%	1.8 m/s	9.9 hours
March	-3.9 °C-16.2° to 3.1°	3.3 mm/day	95.7%	1.7 m/s	11.6 hours
April	-0.4 °C-11.7° to 10.8°	2.2 mm/day	88.7%	1.6 m/s	13.5 hours
May	6.1 °C-4.9° to 20.5°	2 mm/day	77%	1.7 m/s	15 hours
June	9.7 °C-1° to 23.7°	1.8 mm/day	75.1%	1.7 m/s	15.8 hours
July	13.5 °C2° to 26.8°	1 mm/day	71.9%	1.6 m/s	15.5 hours
August	13.6 °C2.4° to 27.3°	0.9 mm/day	68.7%	1.6 m/s	14.1 hours
September	9.9 °C-2° to 24.9°	1.4 mm/day	69.3%	1.6 m/s	12.3 hours
October	3.2 °C-7.4° to 18.1°	3.2 mm/day	79.9%	1.6 m/s	10.5 hours
November	-3 °C-15.7° to 6.7°	5.1 mm/day	91.7%	1.7 m/s	8.9 hours
December	-7.3 °C-21° to 1.1°	4.8 mm/day	96.7%	1.8 m/s	8.2 hours

Calculated climate highlights

Warmest, coolest, wettest, and driest months derived from long-term monthly averages.

Okanogan–Wenatchee National Forest Calculated Monthly Climate Highlights and Extremes

Calculated monthly climate highlights summarize long-term temperature, precipitation, humidity, wind, and daylight normals across twelve distinct calendar intervals for Okanogan–Wenatchee National Forest. Comparative monthly averages establish baseline patterns rather than observed weather extremes or uniform conditions across the entire protected landscape.

Warmest month: August13.6 °C
Coolest month: December-7.3 °C
Wettest month: November5.1 mm/day
Driest month: August0.9 mm/day
Most humid month: December96.7%
Windiest month: January1.8 m/s
Longest daylight: June15.8 hours

Interactive climate map

Compare National Park Climate Data Through an Interactive Global Map

Visit the MoriAtlas climate map to compare long-term monthly temperature and precipitation metrics across national parks. This visual interface helps you understand seasonal variations at specific protected area coordinates to deepen your knowledge of global park geography and environmental characteristics.

Global National Park Climate Map

Other park climates

Analyze monthly temperature, precipitation, and regional atmospheric patterns across diverse protected landscapes.

Comparing Okanogan–Wenatchee National Forest Climate Profiles with Other Protected Areas

Examine long-term monthly normals for temperature and precipitation alongside humidity, wind, and daylight metrics across various protected natural settings. Comparing these multi-year atmospheric baselines reveals distinct seasonal rhythms and regional environmental patterns without assuming direct climatic equivalents.