Green River climate

Green River Weather in August

NOAA 1991-2020 normals for Green Rvr, 1.4 km from Green River

Average highs run from 88°F on August 1 to 81°F on August 31, and lows from 54°F to 46°F. Normal precipitation for the month is 0.64 in over about 5 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 Green River, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
85°F
Average low
51°F
Precipitation
0.64 in
Record high
97°FAug 2, 2026
Record low
33°FAug 31, 1962
Chance of a freeze
2%
Days of 90°F or more
10.4
Daylight
14 h 22 min to 13 h 09 min
Cloud cover
45%
Humidity
36%
Dew point
37°F
Wind
8.3 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 188°F54°F94°F 200840°F 197516%0%
Aug 288°F54°F97°F 202643°F 197516%0%
Aug 388°F54°F96°F 202444°F 199317%0%
Aug 488°F54°F92°F 196941°F 198017%0%
Aug 587°F54°F93°F 199444°F 197617%0%
Aug 687°F54°F93°F 200142°F 199317%0%
Aug 787°F54°F95°F 202643°F 199617%0%
Aug 887°F53°F92°F 195845°F 198717%0%
Aug 987°F53°F92°F 196938°F 197417%0%
Aug 1087°F53°F95°F 196935°F 197417%0%
Aug 1186°F53°F93°F 197244°F 195217%0%
Aug 1286°F52°F94°F 201840°F 197417%0%
Aug 1386°F52°F92°F 197042°F 200217%0%
Aug 1486°F52°F96°F 200337°F 197817%0%
Aug 1586°F51°F91°F 197140°F 197417%0%
Aug 1685°F51°F91°F 202334°F 196817%0%
Aug 1785°F51°F92°F 202035°F 196817%0%
Aug 1885°F50°F94°F 202039°F 197817%0%
Aug 1985°F50°F91°F 202538°F 197817%0%
Aug 2084°F50°F95°F 202536°F 196418%0%
Aug 2184°F49°F93°F 202634°F 196618%0%
Aug 2284°F49°F93°F 200937°F 195418%0%
Aug 2383°F49°F90°F 201136°F 196018%0%
Aug 2483°F48°F92°F 201135°F 196818%0%
Aug 2583°F48°F91°F 197034°F 197518%0%
Aug 2683°F48°F90°F 196934°F 199219%0%
Aug 2782°F47°F90°F 201135°F 197619%0%
Aug 2882°F47°F89°F 197438°F 196419%0%
Aug 2982°F47°F90°F 194834°F 196419%0%
Aug 3081°F46°F91°F 195435°F 196419%0%
Aug 3181°F46°F89°F 202233°F 196219%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Green River, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 6:13 AM, sunset 8:35 PM
August 31
sunrise 6:43 AM, sunset 7:52 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00484065 (Green Rvr), public domain. Records: NOAA GHCN-Daily, station USW00024027, 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.