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

Name: Indian Heaven Wilderness monthly climate normals
Creator: NASA POWER

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.

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A digital illustration of a calm mountain lake surrounded by a dense conifer forest and a rocky peak under a light sky.

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

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 temperature	Precipitation	Humidity	Wind speed	Daylight
January	-1.1 °C-11.8° to 7°	9.5 mm/day	95.3%	2.4 m/s	8.9 hours
February	-0.3 °C-10.7° to 7.9°	7.6 mm/day	92.4%	2.3 m/s	10.1 hours
March	2 °C-7.1° to 13.9°	7 mm/day	89.4%	2.1 m/s	11.7 hours
April	5 °C-3.9° to 18.9°	5.3 mm/day	84.5%	2 m/s	13.3 hours
May	9.2 °C-0.8° to 24.1°	3.3 mm/day	81.3%	2 m/s	14.8 hours
June	11.8 °C2.5° to 27.6°	2.4 mm/day	81.1%	2 m/s	15.5 hours
July	15.6 °C5.2° to 31.6°	0.7 mm/day	76%	1.8 m/s	15.1 hours
August	16.1 °C5.5° to 31.5°	0.9 mm/day	70.2%	1.8 m/s	13.9 hours
September	13.2 °C2.4° to 29.6°	2.4 mm/day	69.5%	1.9 m/s	12.3 hours
October	7.2 °C-2.9° to 21.4°	5.9 mm/day	81.2%	2 m/s	10.6 hours
November	2.1 °C-8.2° to 12°	10 mm/day	91.5%	2.2 m/s	9.2 hours
December	-1.3 °C-11.9° to 7°	10.4 mm/day	95.1%	2.4 m/s	8.5 hours

Compare two months

See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.

First month

Second month

Mean temperature: December: -1.3 °C; August: 16.1 °C; Change from December to August: +17.4 °C
Precipitation: December: 10.4 mm/day; August: 0.9 mm/day; Change from December to August: -9.5 mm/day
Daylight: December: 8.5 hours; August: 13.9 hours; Change from December to August: +5.4 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

National park climate map

Open the climate map to compare monthly temperature, precipitation, and other averages.

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.