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Park climate1991–2020 climate normals870 m source elevationNASA POWER

Twelve month analysis of atmospheric conditions, humidity, and daylight at a representative coordinate.

Indian Heaven Wilderness Monthly Climate Normals, Temperature, and Precipitation Patterns

Annual atmospheric patterns for Indian Heaven Wilderness are defined by monthly averages for temperature, precipitation, wind speed, relative humidity, and daylight. These long-term climate normals, derived from NASA POWER data between 1991 and 2020, provide a standardized baseline for a specific representative coordinate at 869.86 meters elevation. The figures track temperature fluctuations from deep winter minima to high summer maxima and quantify precipitation levels throughout the calendar year. These metrics capture historical norms rather than current weather or park-wide conditions, offering a clear perspective on the localized climate rhythm for this Washington wildlife reserve.

Annual climate pattern

Long term monthly averages for temperature range and daily precipitation rates across the twelve month cycle

Indian Heaven Wilderness Annual Climate Normals and Monthly Temperature Patterns

Average minimum, mean, and maximum temperatures track a distinct annual thermal rhythm through the twelve months at a representative coordinate within Indian Heaven Wilderness. Concurrently, average daily precipitation rates vary across the year, providing a baseline climatological reference derived from long term NASA records rather than live weather forecasts.
Mean temperatureAverage minimum–maximum rangePrecipitation
Temperature (°C)PrecipitationUp to 10.4 mm/day-20°-10°0°10°20°30°40°-1°0°2°5°9°12°16°16°13°7°2°-1°012345678910119.57.675.33.32.40.70.92.45.91010.4JanFebMarAprMayJunJulAugSepOctNovDec
Annual mean
6.6 °C
Warmest month
August
Coolest month
December
Wettest month
December
Twelve-month climate

Analyze average temperature bounds, precipitation rates, humidity, wind, and daylight across all twelve months

Indian Heaven Wilderness Twelve Month Climate Comparison and Weather Normals

Examine long-term climate normals across the calendar year to understand how temperature bounds, average daily precipitation, and relative humidity shift across seasons. Tracking these multi-variable monthly patterns at a representative park coordinate reveals the distinct environmental rhythm defining this protected mountain landscape.
Mean temperaturePrecipitationHumidityWind speedDaylight
January-1.1 °C-11.8° to 7°9.5 mm/day95.3%2.4 m/s8.9 hours
February-0.3 °C-10.7° to 7.9°7.6 mm/day92.4%2.3 m/s10.1 hours
March2 °C-7.1° to 13.9°7 mm/day89.4%2.1 m/s11.7 hours
April5 °C-3.9° to 18.9°5.3 mm/day84.5%2 m/s13.3 hours
May9.2 °C-0.8° to 24.1°3.3 mm/day81.3%2 m/s14.8 hours
June11.8 °C2.5° to 27.6°2.4 mm/day81.1%2 m/s15.5 hours
July15.6 °C5.2° to 31.6°0.7 mm/day76%1.8 m/s15.1 hours
August16.1 °C5.5° to 31.5°0.9 mm/day70.2%1.8 m/s13.9 hours
September13.2 °C2.4° to 29.6°2.4 mm/day69.5%1.9 m/s12.3 hours
October7.2 °C-2.9° to 21.4°5.9 mm/day81.2%2 m/s10.6 hours
November2.1 °C-8.2° to 12°10 mm/day91.5%2.2 m/s9.2 hours
December-1.3 °C-11.9° to 7°10.4 mm/day95.1%2.4 m/s8.5 hours
Calculated climate highlights

Comparative monthly normals for temperature, precipitation, wind, humidity, and daylight duration

Indian Heaven Wilderness Monthly Climate Highlights: Warmest, Coolest, and Driest Calculated Averages

Calculated monthly normals reveal the warmest, coolest, wettest, and driest periods derived from long-term climatology data at a single reference coordinate in Indian Heaven Wilderness. Multi-variable comparisons summarize seasonal contrasts across the annual cycle without representing observed weather extremes or localized conditions.
Warmest month
August16.1 °C
Coolest month
December-1.3 °C
Wettest month
December10.4 mm/day
Driest month
July0.7 mm/day
Most humid month
January95.3%
Windiest month
December2.4 m/s
Longest daylight
June15.5 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

Explore monthly temperature, precipitation, and wind patterns across diverse regional parks.

Compare Indian Heaven Wilderness Climate Profiles With Other Protected Landscapes

Examine long-term monthly normals across different protected areas to evaluate diverse atmospheric rhythms and geographic settings. Standardized meteorological tracking reveals distinct temperature trends, annual precipitation totals, and seasonal daylight variations without implying direct climatic equivalence.
MoriAtlas Explorer

Trace the Volcanic Geography of the Indian Heaven Wilderness Protected Area

Examine the unique geological features and vast lake networks within the Indian Heaven Wilderness through our detailed map data. Gain insights into the Cascade plateau terrain and the historical significance of this protected landscape as cataloged by MoriAtlas.