Bar Nunn climate

Bar Nunn Weather in August

NOAA 1991-2020 normals for Casper Natrona CO AP, 10 km from Bar Nunn

Average highs run from 90°F on August 1 to 83°F on August 31, and lows from 55°F to 47°F. Normal precipitation for the month is 0.79 in over about 6 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 Bar Nunn, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
87°F
Average low
51°F
Precipitation
0.79 in
Record high
103°FAug 2, 2026
Record low
29°FAug 23, 2015
Chance of a freeze
5%
Days of 90°F or more
13.0
Daylight
14 h 29 min to 13 h 12 min
Cloud cover
44%
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; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Aug 190°F55°F99°F 200842°F 196821%0%
Aug 290°F54°F103°F 202645°F 197521%0%
Aug 390°F54°F99°F 202441°F 197421%0%
Aug 489°F54°F97°F 197941°F 198021%0%
Aug 589°F54°F102°F 197939°F 198021%0%
Aug 689°F54°F101°F 200140°F 199621%0%
Aug 789°F54°F100°F 199534°F 199621%0%
Aug 889°F54°F99°F 202644°F 199620%0%
Aug 989°F53°F99°F 199239°F 202520%0%
Aug 1088°F53°F101°F 202239°F 200220%0%
Aug 1188°F53°F99°F 200039°F 200420%0%
Aug 1288°F53°F100°F 201837°F 200420%0%
Aug 1388°F52°F99°F 200038°F 200220%0%
Aug 1487°F52°F99°F 200339°F 202320%0%
Aug 1587°F52°F95°F 199241°F 197419%
Aug 1687°F52°F96°F 198238°F 200919%
Aug 1787°F51°F97°F 201336°F 200219%
Aug 1887°F51°F99°F 198637°F 200919%
Aug 1986°F51°F97°F 201937°F 200219%
Aug 2086°F51°F99°F 202538°F 201619%
Aug 2186°F50°F99°F 202638°F 201619%
Aug 2285°F50°F97°F 200936°F 196619%
Aug 2385°F50°F98°F 202029°F 201519%
Aug 2485°F50°F97°F 199439°F 201019%
Aug 2585°F49°F96°F 196936°F 196419%
Aug 2684°F49°F98°F 199439°F 200519%
Aug 2784°F49°F96°F 199537°F 197619%
Aug 2884°F48°F95°F 199534°F 200419%
Aug 2983°F48°F97°F 201236°F 202419%
Aug 3083°F48°F96°F 194834°F 196519%
Aug 3183°F47°F94°F 195433°F 196519%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Bar Nunn, 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 5:57 AM, sunset 8:26 PM
August 31
sunrise 6:29 AM, sunset 7:41 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024089 (Casper Natrona CO AP), public domain. Records: NOAA GHCN-Daily, station USW00024089, 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.