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Weather by month

Big Bend weather, month by month

Last verified NOAA 1991–2020 normalsAmerica/Chicago time
Average highs, lows, rain, snow and daylight for every month. Measured at the Panther Junction (park headquarters) (3,740 ft, 0 mi from Panther Junction Visitor Center) — with Chisos Basin and Rio Grande Village below, because the park's weather changes with elevation.
Jun high
94°F
hottest month
Jan low
37°F
coldest month
Rain + snowmelt
13.0in / yr
wettest: Jul
Snowfall
0.4in / yr
rare
Days ≥ 90°F
111/ yr
Nights ≤ 32°F
25/ yr

Panther Junction (park headquarters)

Month by month

Normals are 30-year averages (1991–2020). Crowds = each month’s share of the park’s busiest month, from NPS visitor counts. Sunrise and sunset are for the 15th of each month in 2027.
Average high and low, every monthbars run from the low to the high · tan strip = precipitation
comfortable highs 55–85°F40°60°80°100°32°January: average high 61°F, low 37°F, 0.5 in precipitation61°37°January: 0.5 in precipitationJFebruary: average high 66°F, low 41°F, 0.4 in precipitation66°41°February: 0.4 in precipitationFMarch: average high 74°F, low 47°F, 0.4 in precipitation74°47°March: 0.4 in precipitationMApril: average high 82°F, low 54°F, 0.5 in precipitation82°54°April: 0.5 in precipitationAMay: average high 89°F, low 62°F, 1.3 in precipitation89°62°May: 1.3 in precipitationMJune: average high 94°F, low 68°F, 1.7 in precipitation94°68°June: 1.7 in precipitationJJuly: average high 92°F, low 70°F, 2.3 in precipitation92°70°July: 2.3 in precipitationJAugust: average high 91°F, low 69°F, 1.9 in precipitation91°69°August: 1.9 in precipitationASeptember: average high 86°F, low 63°F, 1.7 in precipitation86°63°September: 1.7 in precipitationSOctober: average high 80°F, low 55°F, 1.2 in precipitation80°55°October: 1.2 in precipitationONovember: average high 69°F, low 45°F, 0.7 in precipitation69°45°November: 0.7 in precipitationNDecember: average high 62°F, low 38°F, 0.5 in precipitation62°38°December: 0.5 in precipitationDrain
MonthHighLowRainSnowWet daysSunriseSunsetDaylightCrowds
Jan61°37°0.5″0.1″37:48 AM6:16 PM10h 28m50
Feb66°41°0.4″0.1″37:32 AM6:42 PM11h 10m52
Mar74°47°0.4″—28:03 AM8:01 PM11h 58m100
Apr82°54°0.5″—27:27 AM8:19 PM12h 52m71
May89°62°1.3″—57:01 AM8:38 PM13h 37m46
Jun94°68°1.7″—66:53 AM8:54 PM14h 01m26
Jul92°70°2.3″—77:04 AM8:54 PM13h 51m22
Aug91°69°1.9″—77:21 AM8:34 PM13h 12m18
Sep86°63°1.7″—67:38 AM7:59 PM12h 21m26
Oct80°55°1.2″—47:54 AM7:23 PM11h 29m51
Nov69°45°0.7″—37:17 AM5:58 PM10h 42m63
Dec62°38°0.5″0.2″37:40 AM5:56 PM10h 17m63

Sweet spot: January, February and October combine average highs between 55°F and 85°F with crowds under 60% of the peak month. Check what is open in those months — quiet can also mean closed roads.

Also measured at

Chisos Basin

The mountain basin most visitors hike from, ~1,500 ft higher. 5,300 ft, 0.1 mi from Chisos Basin Visitor Center.
MonthHighLowRainWet days
Jan58°38°0.6″3
Feb63°41°0.6″3
Mar69°46°0.5″2
Apr76°52°0.6″3
May83°60°1.6″5
Jun87°65°2.7″7
Jul85°65°3.6″9
Aug84°65°3.1″9
Sep79°60°2.7″7
Oct74°54°1.3″5
Nov65°45°0.6″4
Dec59°39°0.5″3

Also measured at

Rio Grande Village

The low desert along the river. 1,858 ft, 0 mi from Rio Grande Village Visitor Center.
MonthHighLowRainWet days
Jan70°32°0.5″—
Feb77°38°0.4″—
Mar85°45°0.4″—
Apr94°54°0.5″—
May100°66°1.3″—
Jun105°74°2.1″—
Jul104°75°1.9″—
Aug103°74°1.5″—
Sep97°68°1.6″—
Oct92°56°1.1″—
Nov79°42°0.5″—
Dec70°32°0.4″—

How to read this

These are NOAA’s official 1991–2020 climate normals for one weather station, not a model of the whole park. The station is the one with complete temperature and precipitation normals nearest to a visitor center (we chose Panther Junction (park headquarters) because it is park headquarters visitor center, mid-elevation). Highs and lows are daily averages for the month; “wet days” are days with at least 0.01 inch of precipitation. Mountain parks can be 10–20 °F cooler at their high points than at the station, and the NPS weather page for Big Bend is the place for current conditions and seasonal closures.

Sunrise and sunset are computed with the NOAA solar equations for the park’s coordinates and shown in America/Chicago time for the 15th of each month of 2027; they are accurate to about a minute.

Sources · 3

  1. 1.U.S. Climate Normals 1991–2020 — monthly normals station inventory · National Centers for Environmental Information (NOAA)
  2. 2.Big Bend National Park — Weather (nps.gov) · National Park Service
  3. 3.Big Bend National Park — Visitor Use Statistics · National Park Service (IRMA)

FAQ

Big Bend weather questions

What is the hottest month at Big Bend?
June, with an average high of 94°F and an average low of 68°F at Panther Junction (park headquarters) (NOAA 1991–2020 normals). The station averages 111 days a year at or above 90°F.
How cold does Big Bend get in winter?
January is the coldest month, averaging a low of 37°F and a high of 61°F at Panther Junction (park headquarters). About 25 nights a year drop to freezing or below.
Does it snow at Big Bend?
Panther Junction (park headquarters) records almost no snowfall (0.4 inches a year). Higher elevations in the park can differ.
When is the rainy season at Big Bend?
July is the wettest month on average (2.3 inches of precipitation at Panther Junction (park headquarters)); the station's annual total is 13.0 inches.
How many hours of daylight does Big Bend get?
About 14h 01m on June 15 and 10h 17m on December 15 (sunrise 6:53 AM, sunset 8:54 PM in June; 7:40 AM to 5:56 PM in December, America/Chicago time).
What is the best month to visit Big Bend for weather?
By NOAA's normals, average highs sit between 55°F and 85°F in January, February, March, April, October, November and December. Of those, January, February and October are also well below the park's peak crowds. Weather in the park varies with elevation; this is the Panther Junction (park headquarters) station.

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