Park climate1991–2020 climate normals2,437 m source elevationNASA POWER

Year-round atmospheric patterns featuring temperature, precipitation, humidity, wind, and daylight data

Monthly Climate Normals for Yellowstone National Park: Representative Point Measurements

Name: Yellowstone National Park monthly climate normals
Creator: NASA POWER

Analyze the long-term climatology of Yellowstone National Park through twelve-month averages. Data reflects representative-point measurements recorded between 1991 and 2020, covering average daily temperature, precipitation rates, relative humidity, wind speed, and daylight hours. These records illustrate annual atmospheric trends at the designated coordinate, providing a consistent reference for the park climate profile independent of seasonal variations or daily weather fluctuations.

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Annual climate pattern

Analyzing the annual thermal cycle and daily precipitation rates across twelve months

Monthly Climate Normals and Temperature Trends in Yellowstone National Park

Long term climate normals for Yellowstone National Park show mean temperatures rising from minus 12.22 degrees Celsius in December to 14.49 degrees in July, with average minimums falling to minus 28.5 degrees. Average daily precipitation ranges from 2.91 millimeters in December to 1.28 millimeters in August, representing thirty years of historical data.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: -0.1 °C
Warmest month: July
Coolest month: December
Wettest month: December

Twelve-month climate

Track average temperature ranges, daily precipitation rates, and calculated daylight hours across the year

Yellowstone National Park Monthly Climate: Comprehensive Twelve-Month Weather Normals

Baseline monthly climate values derived from decades of observation at a representative Yellowstone coordinate reveal the precise seasonal shifts in average minimum, mean, and maximum temperatures. Comparing all twelve monthly intervals provides a clear multi-variable analysis of average daily precipitation rates, relative humidity, wind speed, and calculated average daylight hours.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	-12 °C-27.6° to -0.9°	2.7 mm/day	97.7%	2.9 m/s	9.1 hours
February	-10.9 °C-27.4° to -0.3°	2.5 mm/day	98.2%	2.9 m/s	10.2 hours
March	-7.2 °C-23.5° to 1.3°	2.4 mm/day	97.3%	2.8 m/s	11.7 hours
April	-2.8 °C-16.9° to 9°	2.6 mm/day	89.6%	2.6 m/s	13.3 hours
May	4.1 °C-8.7° to 17.8°	2.7 mm/day	76.4%	2.5 m/s	14.6 hours
June	9.3 °C-3.5° to 22.8°	2.4 mm/day	69.8%	2.5 m/s	15.3 hours
July	14.5 °C2° to 26.8°	1.3 mm/day	59.8%	2.2 m/s	15 hours
August	14 °C0.9° to 27°	1.3 mm/day	53.2%	2.3 m/s	13.8 hours
September	8.5 °C-4.9° to 24.1°	1.6 mm/day	57.8%	2.4 m/s	12.3 hours
October	0.8 °C-13.1° to 16.9°	2.1 mm/day	71.4%	2.6 m/s	10.7 hours
November	-7.2 °C-23.4° to 6.1°	2.6 mm/day	90.2%	2.7 m/s	9.3 hours
December	-12.2 °C-28.5° to -0.7°	2.9 mm/day	97.8%	2.9 m/s	8.7 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: -12.2 °C; July: 14.5 °C; Change from December to July: +26.7 °C
Precipitation: December: 2.9 mm/day; July: 1.3 mm/day; Change from December to July: -1.6 mm/day
Daylight: December: 8.7 hours; July: 15 hours; Change from December to July: +6.3 hours

Calculated climate highlights

Tracing annual temperature, precipitation, and daylight averages across representative park terrain.

Calculated Monthly Climate Highlights and Contrasts for Yellowstone National Park

Climatology data from 1991 to 2020 reveals the warmest, coolest, wettest, and driest monthly averages measured at a representative park elevation of 2437 meters. Comparing multiple monthly metrics helps trace seasonal changes across the year, distinguishing calculated long-term averages from daily weather extremes or real-time conditions.

Warmest month: July14.5 °C
Coolest month: December-12.2 °C
Wettest month: December2.9 mm/day
Driest month: August1.3 mm/day
Most humid month: February98.2%
Windiest month: January2.9 m/s
Longest daylight: June15.3 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

Evaluate monthly atmospheric patterns and environmental trends across varied geographical landscapes

Monthly Climate Profile Comparisons for Yellowstone National Park and Other National Parks

Standardized climatic databases allow explorers to compare the monthly temperature normals and precipitation rhythms of Yellowstone National Park with other protected areas across the country. Analyzing historical measurements of humidity, wind, and daylight duration across various geographic settings highlights the environmental contrasts between distinct wilderness reserves.