Saint George climate

Saint George Weather in August

NOAA 1991-2020 normals for St George, 2.6 km from Saint George

Average highs run from 102°F on August 1 to 97°F on August 31, and lows from 73°F to 67°F. Normal precipitation for the month is 1.07 in over about 3 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 Saint George, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
100°F
Average low
70°F
Precipitation
1.07 in
Record high
115°FAug 17, 2020
Record low
40°FAug 12, 1894
Chance of a freeze
0%
Days of 90°F or more
30.3
Daylight
14 h 02 min to 13 h 00 min
Cloud cover
34%
Humidity
30%
Dew point
45°F
Wind
7.2 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 1102°F73°F112°F 199543°F 190310%0%
Aug 2102°F73°F112°F 199554°F 191310%0%
Aug 3102°F73°F111°F 199554°F 191510%0%
Aug 4102°F73°F112°F 189352°F 194410%0%
Aug 5102°F72°F113°F 189552°F 191210%0%
Aug 6101°F72°F110°F 190350°F 191210%0%
Aug 7101°F72°F111°F 202452°F 190010%0%
Aug 8101°F72°F110°F 197850°F 189610%0%
Aug 9101°F72°F111°F 192850°F 189610%0%
Aug 10101°F72°F110°F 194051°F 189410%0%
Aug 11101°F72°F112°F 194047°F 189410%0%
Aug 12101°F71°F111°F 193340°F 189410%0%
Aug 13101°F71°F110°F 193346°F 189910%0%
Aug 14100°F71°F109°F 196350°F 189910%0%
Aug 15100°F71°F110°F 199448°F 190210%0%
Aug 16100°F71°F111°F 202047°F 189910%0%
Aug 17100°F70°F115°F 202040°F 190210%0%
Aug 18100°F70°F113°F 202048°F 189910%0%
Aug 19100°F70°F112°F 202046°F 189910%0%
Aug 2099°F70°F111°F 202047°F 189910%0%
Aug 2199°F70°F109°F 191950°F 189910%0%
Aug 2299°F69°F110°F 196944°F 190010%0%
Aug 2399°F69°F110°F 196945°F 190010%0%
Aug 2499°F69°F110°F 191945°F 189910%0%
Aug 2599°F68°F109°F 193147°F 18999%0%
Aug 2698°F68°F108°F 198547°F 19789%0%
Aug 2798°F68°F109°F 202649°F 19009%0%
Aug 2898°F68°F109°F 191848°F 19039%0%
Aug 2998°F67°F107°F 195448°F 18959%0%
Aug 3098°F67°F109°F 191943°F 19029%0%
Aug 3197°F67°F109°F 199545°F 19329%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Saint George, in percent, and of at least 0.1 inch of snowfall.02.557.51012.51102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 6:39 AM, sunset 8:41 PM
August 31
sunrise 7:04 AM, sunset 8:04 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00427516 (St George), public domain. Records: NOAA GHCN-Daily, station USC00427516, 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.