Banner County climate

Banner County Weather in August

NOAA 1991-2020 normals for Harrisburg 12WNW, 22.5 km from Banner County

Average highs run from 89°F on August 1 to 84°F on August 31, and lows from 56°F to 49°F. Normal precipitation for the month is 1.81 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 Banner County, 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
53°F
Precipitation
1.81 in
Record high
106°FAug 3, 2026
Record low
39°FAug 23, 2015
Chance of a freeze
3%
Days of 90°F or more
12.7
Daylight
14 h 22 min to 13 h 09 min
Cloud cover
48%
Humidity
48%
Dew point
49°F
Wind
9.2 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 189°F56°F105°F 200250°F 201823%0%
Aug 289°F56°F99°F 202255°F 201423%0%
Aug 389°F56°F106°F 202655°F 201823%0%
Aug 489°F56°F100°F 202450°F 201723%0%
Aug 589°F55°F104°F 202449°F 202623%0%
Aug 689°F55°F104°F 202254°F 202323%0%
Aug 788°F55°F99°F 201253°F 201823%0%
Aug 888°F55°F101°F 202052°F 202322%0%
Aug 988°F55°F98°F 201252°F 202422%0%
Aug 1088°F54°F99°F 200649°F 200222%0%
Aug 1188°F54°F98°F 201646°F 200422%0%
Aug 1288°F54°F101°F 202646°F 200422%0%
Aug 1388°F54°F96°F 201045°F 200222%0%
Aug 1487°F54°F104°F 200745°F 200222%0%
Aug 1587°F53°F101°F 202549°F 200221%0%
Aug 1687°F53°F100°F 201553°F 200421%0%
Aug 1787°F53°F101°F 200246°F 201221%0%
Aug 1887°F52°F100°F 202147°F 200221%
Aug 1987°F52°F100°F 202347°F 200221%
Aug 2086°F52°F97°F 201943°F 201621%
Aug 2186°F52°F99°F 201343°F 201821%
Aug 2286°F51°F101°F 202348°F 202121%
Aug 2386°F51°F101°F 200339°F 201521%
Aug 2486°F51°F100°F 200646°F 201521%
Aug 2585°F50°F97°F 202045°F 201521%
Aug 2685°F50°F100°F 202050°F 200221%
Aug 2785°F50°F98°F 200751°F 200521%
Aug 2885°F50°F98°F 201041°F 200421%
Aug 2985°F49°F101°F 201246°F 200421%
Aug 3084°F49°F100°F 201246°F 202420%
Aug 3184°F49°F98°F 202346°F 200520%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Banner 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 5:50 AM, sunset 8:12 PM
August 31
sunrise 6:20 AM, sunset 7:29 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00253605 (Harrisburg 12WNW), public domain. Records: NOAA GHCN-Daily, station USC00257667, 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.