Thief River Falls climate

Thief River Falls Weather in August

NOAA 1991-2020 normals for Thief Rvr Falls 2, 1.5 km from Thief River Falls

Average highs run from 81°F on August 1 to 75°F on August 31, and lows from 57°F to 52°F.

August day by day

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

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

August at a glance

Average high
79°F
Average low
55°F
Record high
102°FAug 7, 1983
Record low
28°FAug 27, 1982
Chance of a freeze
1%
Days of 90°F or more
1.8
Daylight
15 h 00 min to 13 h 27 min
Cloud cover
54%
Humidity
64%
Dew point
54°F
Wind
9.6 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 181°F57°F97°F 193037°F 19270%
Aug 281°F57°F99°F 193039°F 19270%
Aug 381°F57°F101°F 198937°F 19780%
Aug 481°F57°F99°F 194739°F 19150%
Aug 581°F57°F98°F 193940°F 19940%
Aug 681°F57°F96°F 198441°F 19170%
Aug 781°F57°F102°F 198343°F 19210%
Aug 881°F57°F96°F 194942°F 19270%
Aug 981°F57°F96°F 192037°F 19170%
Aug 1081°F56°F97°F 198838°F 19820%
Aug 1180°F56°F94°F 195837°F 19140%
Aug 1280°F56°F95°F 197838°F 20210%
Aug 1380°F56°F99°F 198435°F 19640%
Aug 1480°F56°F98°F 193535°F 19680%
Aug 1580°F56°F99°F 193541°F 19790%
Aug 1680°F56°F97°F 192239°F 19240%
Aug 1779°F56°F95°F 191739°F 19240%
Aug 1879°F55°F94°F 194539°F 19320%
Aug 1979°F55°F97°F 200338°F 20040%
Aug 2079°F55°F99°F 197633°F 19500%
Aug 2179°F55°F97°F 201335°F 19200%
Aug 2278°F55°F94°F 194735°F 19230%
Aug 2378°F54°F95°F 192930°F 19270%
Aug 2478°F54°F97°F 197633°F 19170%
Aug 2577°F54°F94°F 192632°F 19450%
Aug 2677°F54°F96°F 201332°F 19340%
Aug 2777°F53°F97°F 192628°F 19820%
Aug 2876°F53°F97°F 198432°F 19340%
Aug 2976°F53°F95°F 196134°F 19880%
Aug 3076°F53°F95°F 192934°F 19350%
Aug 3175°F52°F94°F 195333°F 19740%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Thief River Falls, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:01 AM, sunset 9:01 PM
August 31
sunrise 6:41 AM, sunset 8:08 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00218247 (Thief Rvr Falls 2), public domain. Records: NOAA GHCN-Daily, station USC00216787, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.