Glenrock climate

Glenrock Weather in August

NOAA 1991-2020 normals for Casper 1SW, 33.6 km from Glenrock

Average highs run from 88°F on August 1 to 82°F on August 31, and lows from 59°F to 50°F. Normal precipitation for the month is 1.04 in.

August day by day

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

Normal daily high and low temperature at Glenrock, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
86°F
Average low
54°F
Precipitation
1.04 in
Record high
103°FAug 2, 2026
Record low
31°FAug 23, 2015
Chance of a freeze
0%
Days of 90°F or more
10.0
Daylight
14 h 29 min to 13 h 12 min
Cloud cover
46%
Humidity
40%
Dew point
42°F
Wind
8.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Aug 188°F59°F101°F 200844°F 2009
Aug 288°F59°F103°F 202645°F 2025
Aug 388°F58°F100°F 202447°F 2012
Aug 488°F58°F98°F 202244°F 2012
Aug 588°F58°F99°F 202247°F 2026
Aug 688°F58°F100°F 200145°F 2000
Aug 788°F57°F100°F 202548°F 2026
Aug 887°F57°F102°F 202649°F 2021
Aug 987°F57°F99°F 201642°F 2025
Aug 1087°F57°F100°F 202244°F 2002
Aug 1187°F56°F101°F 202238°F 2004
Aug 1287°F56°F101°F 200740°F 2004
Aug 1387°F56°F103°F 200738°F 2002
Aug 1486°F55°F98°F 201541°F 2023
Aug 1586°F55°F99°F 201542°F 2023
Aug 1686°F55°F98°F 200238°F 2009
Aug 1786°F54°F99°F 201338°F 2002
Aug 1886°F54°F97°F 201041°F 2009
Aug 1985°F54°F99°F 201941°F 2002
Aug 2085°F53°F100°F 202535°F 2016
Aug 2185°F53°F99°F 202338°F 2016
Aug 2285°F53°F100°F 200939°F 2015
Aug 2384°F52°F100°F 202031°F 2015
Aug 2484°F52°F97°F 202040°F 2010
Aug 2584°F51°F99°F 202044°F 2010
Aug 2684°F51°F98°F 200741°F 2005
Aug 2783°F51°F99°F 201139°F 2019
Aug 2883°F51°F98°F 201234°F 2004
Aug 2983°F50°F100°F 201238°F 2018
Aug 3082°F50°F99°F 201540°F 2024
Aug 3182°F50°F98°F 201134°F 2005

Chance of rain

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 5:55 AM, sunset 8:24 PM
August 31
sunrise 6:27 AM, sunset 7:39 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00481572 (Casper 1SW), public domain. Records: NOAA GHCN-Daily, station USW00094057, 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.