Box Elder County climate

Box Elder County Weather in August

NOAA 1991-2020 normals for Rosette, 43 km from Box Elder County

Average highs run from 88°F on August 1 to 81°F on August 31, and lows from 61°F to 53°F. Normal precipitation for the month is 0.75 in over about 5 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 Box Elder County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
85°F
Average low
57°F
Precipitation
0.75 in
Record high
106°FAug 2, 2026
Record low
36°FAug 7, 1999
Chance of a freeze
0%
Days of 90°F or more
7.9
Daylight
14 h 23 min to 13 h 09 min
Cloud cover
41%
Humidity
35%
Dew point
43°F
Wind
7.4 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°F61°F105°F 202643°F 199519%
Aug 287°F60°F106°F 202649°F 199319%
Aug 387°F60°F106°F 202647°F 199319%
Aug 487°F60°F102°F 199451°F 199619%
Aug 587°F60°F103°F 199451°F 202619%
Aug 687°F60°F105°F 202452°F 201519%
Aug 787°F60°F105°F 202436°F 199919%
Aug 887°F60°F104°F 199046°F 200219%
Aug 986°F59°F105°F 199044°F 199519%
Aug 1086°F59°F102°F 199050°F 199919%
Aug 1186°F59°F103°F 200350°F 201319%
Aug 1286°F59°F101°F 199649°F 199519%
Aug 1386°F58°F103°F 202550°F 199319%
Aug 1485°F58°F103°F 202549°F 200518%
Aug 1585°F58°F101°F 200749°F 201718%
Aug 1685°F58°F101°F 199452°F 201718%
Aug 1785°F57°F101°F 199451°F 199518%
Aug 1884°F57°F99°F 200147°F 199318%
Aug 1984°F57°F100°F 202442°F 199518%
Aug 2084°F56°F103°F 202644°F 202118%
Aug 2184°F56°F103°F 202643°F 199018%
Aug 2283°F56°F100°F 199142°F 202118%
Aug 2383°F56°F100°F 202540°F 199218%
Aug 2483°F55°F97°F 199442°F 199218%
Aug 2582°F55°F101°F 202441°F 199218%
Aug 2682°F55°F101°F 202437°F 199218%
Aug 2782°F54°F100°F 200137°F 199217%
Aug 2882°F54°F97°F 201241°F 200417%
Aug 2981°F54°F101°F 202344°F 199317%
Aug 3081°F53°F100°F 202344°F 199317%
Aug 3181°F53°F98°F 199641°F 200517%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Box Elder County, in percent.051015201102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (MDT).

August 1
sunrise 6:27 AM, sunset 8:50 PM
August 31
sunrise 6:58 AM, sunset 8:07 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00427408 (Rosette), public domain. Records: NOAA GHCN-Daily, station USC00428978, 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.