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Big Bend National ParkThe Rio Grande runs dry-May 2003
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Big Bend National Park
Average Temperature and Rainfall
The table below is based on average temperatures at the Panther Junction park headquarters. Temperatures in the higher mountain areas vary about 5-10 degrees below those shown, while temperatures along the Rio Grande can be 5-10 degrees higher. Sunshine is abundant most of the year. Infrequent and brief periods of cloudy weather may occur during the winter months. While snow is rare and generally light, occasional cold fronts can bring temperatures well below freezing.
Month Average Max. Temp (°F) Average Min. Temp (°F) Monthly Precip. Average (inches) Cumulative Precip. Average (inches)
January 60.9 35.0 .46 .46
February 66.2 37.8 .34 .80
March 77.4 45.3 .31 1.11
April 80.7 52.3 .70 1.81
May 88.0 59.3 1.50 3.31
June 94.2 65.5 1.93 5.24
July 92.9 68.3 2.09 7.33
August 91.1 66.4 2.35 9.68
September 86.4 61.9 2.12 11.80
October 78.8 52.7 2.27 14.07
November 68.5 42.3 .70 14.77
December 62.2 36.4 .57 15.34


Biplanes over the Big Bend  

Did You Know?
From 1929 to 1943, Elmo Johnson's Ranch served as a U.S. Army Air Corps landing field. The field was a popular weekend destination for pilots—a place to combine flying exercises with recreation such as hunting, fishing, exploring Indian caves, and taking burro rides into Mexico.
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Last Updated: July 27, 2006 at 15:06 EST