Custer climate

Custer Weather in August

NOAA 1991-2020 normals for Custer, 1.3 km from Custer

Average highs run from 80°F on August 1 to 77°F on August 31, and lows from 57°F to 51°F. Normal precipitation for the month is 2.43 in over about 9 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 Custer, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
79°F
Average low
55°F
Precipitation
2.43 in
Record high
95°FAug 5, 2022
Record low
31°FAug 31, 2020
Chance of a freeze
0%
Days of 90°F or more
1.2
Daylight
14 h 34 min to 13 h 14 min
Cloud cover
45%
Humidity
54%
Dew point
47°F
Wind
5.8 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 180°F57°F91°F 202240°F 200934%0%
Aug 280°F57°F94°F 202445°F 202034%0%
Aug 380°F57°F94°F 202442°F 201734%0%
Aug 480°F57°F93°F 202241°F 201733%0%
Aug 580°F57°F95°F 202241°F 201233%0%
Aug 680°F57°F89°F 201245°F 201833%0%
Aug 780°F56°F92°F 200147°F 201732%0%
Aug 880°F56°F92°F 202646°F 201732%0%
Aug 980°F56°F90°F 202244°F 200431%0%
Aug 1079°F56°F91°F 202637°F 200431%0%
Aug 1179°F56°F93°F 202236°F 200431%0%
Aug 1279°F56°F91°F 202039°F 200430%0%
Aug 1379°F55°F95°F 200736°F 200430%0%
Aug 1479°F55°F90°F 202539°F 200429%
Aug 1579°F55°F93°F 201542°F 200829%
Aug 1679°F55°F91°F 202139°F 200928%
Aug 1779°F55°F95°F 202132°F 200228%
Aug 1879°F54°F93°F 202337°F 200928%
Aug 1979°F54°F88°F 200138°F 200227%
Aug 2078°F54°F89°F 202535°F 201627%
Aug 2178°F54°F95°F 202338°F 200927%
Aug 2278°F54°F95°F 202339°F 201526%
Aug 2378°F53°F93°F 200635°F 201526%
Aug 2478°F53°F91°F 200039°F 201026%
Aug 2578°F53°F94°F 201142°F 200725%
Aug 2678°F53°F92°F 201042°F 200525%
Aug 2777°F52°F93°F 201038°F 200425%
Aug 2877°F52°F91°F 201236°F 200424%
Aug 2977°F52°F95°F 201237°F 202124%
Aug 3077°F52°F91°F 201542°F 200124%
Aug 3177°F51°F87°F 200831°F 202024%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Custer, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 5:43 AM, sunset 8:17 PM
August 31
sunrise 6:17 AM, sunset 7:31 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00392087 (Custer), public domain. Records: NOAA GHCN-Daily, station USW00094032, 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.