Teton County climate

Teton County Weather in August

NOAA 1991-2020 normals for Moran 5WNW, 8.7 km from Teton County

Average highs run from 79°F on August 1 to 72°F on August 31, and lows from 43°F to 37°F. Normal precipitation for the month is 1.28 in over about 8 wet days.

August day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Teton County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
76°F
Average low
40°F
Precipitation
1.28 in
Record high
97°FAug 15, 2003
Record low
22°FAug 26, 1992
Chance of a freeze
57%
Daylight
14 h 35 min to 13 h 15 min
Cloud cover
45%
Humidity
50%
Dew point
36°F
Wind
5.1 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 179°F43°F96°F 200032°F 197526%0%
Aug 279°F43°F95°F 200034°F 196326%0%
Aug 379°F43°F94°F 202030°F 201626%0%
Aug 479°F43°F93°F 196127°F 198027%0%
Aug 578°F43°F93°F 196127°F 198027%0%
Aug 678°F42°F93°F 199428°F 196927%0%
Aug 778°F42°F94°F 200128°F 198027%0%
Aug 878°F42°F95°F 200129°F 198027%0%
Aug 978°F42°F90°F 197225°F 200227%0%
Aug 1078°F42°F92°F 200128°F 198527%0%
Aug 1177°F42°F95°F 201829°F 199726%0%
Aug 1277°F41°F95°F 201829°F 200226%0%
Aug 1377°F41°F95°F 200730°F 200226%0%
Aug 1477°F41°F92°F 202130°F 198526%0%
Aug 1577°F41°F97°F 200328°F 197426%0%
Aug 1676°F41°F94°F 200326°F 196626%0%
Aug 1776°F40°F91°F 201327°F 198726%0%
Aug 1876°F40°F95°F 202026°F 198726%0%
Aug 1976°F40°F94°F 202027°F 198726%0%
Aug 2075°F40°F91°F 198627°F 196426%0%
Aug 2175°F40°F90°F 201926°F 196426%0%
Aug 2275°F39°F90°F 200929°F 196426%0%
Aug 2374°F39°F90°F 196129°F 201526%0%
Aug 2474°F39°F89°F 196129°F 196226%0%
Aug 2574°F39°F90°F 196925°F 199226%0%
Aug 2674°F38°F90°F 201522°F 199226%0%
Aug 2773°F38°F89°F 198526°F 199326%0%
Aug 2873°F38°F89°F 200126°F 196026%0%
Aug 2973°F38°F90°F 201229°F 196026%0%
Aug 3072°F37°F88°F 200523°F 196426%0%
Aug 3172°F37°F90°F 201623°F 196526%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Teton County, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 6:11 AM, sunset 8:46 PM
August 31
sunrise 6:45 AM, sunset 8:00 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00486440 (Moran 5WNW), public domain. Records: NOAA GHCN-Daily, station USC00486428, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.