Park climate1991–2020 climate normals980 m source elevationNASA POWER

Detailed atmospheric records including wind speed, relative humidity, and average daylight hours

Big Bend National Park: monthly climate

Name: Big Bend National Park monthly climate normals
Creator: NASA POWER

At the representative location for Big Bend National Park, monthly mean temperatures range from 9.3 to 28.8 °C (1991–2020). Compare precipitation, humidity, wind, and daylight for each month.

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Annual climate pattern

Mapping twelve months of average temperature ranges alongside average daily precipitation rates

Annual Temperature Patterns and Monthly Climate Normals for Big Bend National Park

Long-term data for Big Bend National Park shows monthly mean temperatures climbing from a low of 9.26 degrees Celsius in January to a peak of 28.8 degrees Celsius in July. Average daily precipitation rates stay under one millimeter for most of the year but increase alongside summer temperatures, capturing historical normals at a representative elevation of 979.7 meters.

Mean temperatureAverage minimum–maximum rangePrecipitation

Annual mean: 19.9 °C
Warmest month: July
Coolest month: January
Wettest month: July

Twelve-month climate

Track average temperature bounds, daily precipitation rates, humidity, and calculated daylight hours.

Monthly Climate Normals for Big Bend National Park: A Twelve-Month Comparison

Climatological data from the 1991 to 2020 baseline, recorded at a representative elevation of 979.7 meters, tracks average minimum, mean, and maximum temperatures alongside daily precipitation rates. Evaluating the monthly intervals alongside relative humidity, wind speed, and calculated average daylight hours reveals the broader seasonal transitions across the protected West Texas environment.

	Mean temperature	Precipitation	Humidity	Wind speed	Daylight
January	9.3 °C-3.9° to 25.7°	0.5 mm/day	51.4%	3.2 m/s	10.4 hours
February	12.3 °C-2.2° to 29.2°	0.5 mm/day	45.1%	3.5 m/s	11 hours
March	16.3 °C0.5° to 32.8°	0.5 mm/day	38.3%	3.7 m/s	11.8 hours
April	21 °C5.1° to 36.1°	0.6 mm/day	32.4%	3.8 m/s	12.7 hours
May	25.6 °C11.1° to 39.9°	1.2 mm/day	37.1%	3.6 m/s	13.5 hours
June	28.8 °C17.9° to 41.2°	1.5 mm/day	43.7%	3.4 m/s	13.8 hours
July	28.8 °C19.3° to 40.1°	1.5 mm/day	46.1%	3.3 m/s	13.7 hours
August	28.3 °C19.3° to 39.2°	1.5 mm/day	48.2%	3.1 m/s	13 hours
September	25.1 °C13.3° to 37.3°	1.5 mm/day	52.9%	3.1 m/s	12.2 hours
October	20.4 °C5.5° to 35°	1 mm/day	50.8%	3.1 m/s	11.3 hours
November	13.9 °C-0.8° to 29.5°	0.6 mm/day	50.9%	3.1 m/s	10.5 hours
December	9.5 °C-4.1° to 25.9°	0.5 mm/day	52.4%	3.1 m/s	10.2 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: January: 9.3 °C; July: 28.8 °C; Change from January to July: +19.5 °C
Precipitation: January: 0.5 mm/day; July: 1.5 mm/day; Change from January to July: +1.1 mm/day
Daylight: January: 10.4 hours; July: 13.7 hours; Change from January to July: +3.3 hours

Calculated climate highlights

Analyzing the annual distribution of monthly temperature, precipitation rates, and wind averages.

Big Bend National Park Monthly Climate Highlights: Warmest and Wettest Months

Long-term climatology records from a representative coordinate in Brewster County reveal the shifting baseline of warmest, coolest, wettest, and driest months. Comparing these monthly averages helps trace broader seasonal patterns in wind speed, daylight duration, and relative humidity without relying on exceptional weather records.

Warmest month: July28.8 °C
Coolest month: January9.3 °C
Wettest month: July1.5 mm/day
Driest month: February0.5 mm/day
Most humid month: September52.9%
Windiest month: April3.8 m/s
Longest daylight: June13.8 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

Analyze geographic variations in monthly temperature and precipitation across regional protected areas

Monthly Climate Profile Comparisons Between Big Bend National Park and Other Protected Areas

Standardized monthly climate profiles provide a clear basis for contrasting the annual temperature patterns and precipitation rhythms of Big Bend National Park with other regional conservation areas. Broadening an investigation to include humidity, wind speed, and daylight duration reveals how different terrain structures and continental placements shape distinct localized atmospheres.

Climate profileUnited States of America