Duchesne County climate

Duchesne County Weather in August

NOAA 1991-2020 normals for Altamont, 13.2 km from Duchesne County

Average highs run from 83°F on August 1 to 77°F on August 31, and lows from 53°F to 46°F. Normal precipitation for the month is 0.96 in over about 7 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 Duchesne County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
80°F
Average low
50°F
Precipitation
0.96 in
Record high
101°FAug 4, 1970
Record low
26°FAug 31, 1908
Chance of a freeze
3%
Days of 90°F or more
1.2
Daylight
14 h 16 min to 13 h 07 min
Cloud cover
50%
Humidity
47%
Dew point
36°F
Wind
4.5 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 183°F53°F100°F 202641°F 195021%0%
Aug 283°F53°F100°F 202640°F 191521%0%
Aug 382°F52°F98°F 197039°F 192421%0%
Aug 482°F52°F101°F 197041°F 190921%0%
Aug 582°F52°F96°F 195838°F 192821%0%
Aug 682°F52°F95°F 195839°F 195021%0%
Aug 782°F52°F95°F 195837°F 192421%0%
Aug 882°F52°F96°F 196039°F 191121%0%
Aug 982°F52°F96°F 196432°F 194821%0%
Aug 1081°F51°F97°F 194040°F 194821%0%
Aug 1181°F51°F97°F 197240°F 193221%0%
Aug 1281°F51°F97°F 195839°F 194921%0%
Aug 1381°F51°F98°F 194039°F 195021%0%
Aug 1481°F51°F95°F 196239°F 195021%0%
Aug 1581°F50°F96°F 193939°F 194921%0%
Aug 1680°F50°F94°F 196238°F 194921%0%
Aug 1780°F50°F97°F 198637°F 192521%0%
Aug 1880°F50°F98°F 198637°F 192421%0%
Aug 1980°F50°F97°F 198635°F 192421%0%
Aug 2080°F49°F95°F 202539°F 195621%0%
Aug 2179°F49°F95°F 196034°F 191821%0%
Aug 2279°F49°F93°F 193932°F 193321%0%
Aug 2379°F49°F95°F 194436°F 192821%0%
Aug 2479°F48°F94°F 196137°F 192821%0%
Aug 2578°F48°F93°F 192628°F 191021%0%
Aug 2678°F48°F93°F 197038°F 193321%0%
Aug 2778°F48°F94°F 201735°F 195121%0%
Aug 2878°F47°F95°F 192431°F 193320%0%
Aug 2977°F47°F93°F 198532°F 190820%0%
Aug 3077°F47°F93°F 195431°F 191020%0%
Aug 3177°F46°F94°F 194026°F 190820%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Duchesne County, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 6:20 AM, sunset 8:36 PM
August 31
sunrise 6:48 AM, sunset 7:55 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00420074 (Altamont), public domain. Records: NOAA GHCN-Daily, station USC00422253, 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.