Columbia County climate

Columbia County Weather in August

NOAA 1991-2020 normals for Dayton 1 Wsw, 7.5 km from Columbia County

Average highs run from 90°F on August 1 to 83°F on August 31, and lows from 56°F to 51°F. Normal precipitation for the month is 0.45 in over about 3 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 Columbia County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
87°F
Average low
54°F
Precipitation
0.45 in
Record high
114°FAug 4, 1961
Record low
42°FAug 24, 1992
Chance of a freeze
0%
Days of 90°F or more
11.7
Daylight
14 h 49 min to 13 h 21 min
Cloud cover
36%
Humidity
43%
Dew point
46°F
Wind
8.3 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°F56°F108°F 200950°F 198710%0%
Aug 290°F56°F109°F 199450°F 195710%0%
Aug 390°F56°F107°F 196150°F 200210%0%
Aug 490°F56°F114°F 196150°F 195410%0%
Aug 590°F56°F108°F 199047°F 200210%0%
Aug 689°F56°F105°F 197248°F 196910%0%
Aug 789°F56°F108°F 197249°F 200210%0%
Aug 889°F56°F108°F 197251°F 194910%0%
Aug 989°F56°F105°F 198152°F 194910%0%
Aug 1089°F56°F104°F 196754°F 196410%0%
Aug 1188°F55°F109°F 198453°F 200710%0%
Aug 1288°F55°F105°F 197353°F 195710%0%
Aug 1388°F55°F106°F 199252°F 194910%0%
Aug 1488°F55°F103°F 199250°F 194910%0%
Aug 1587°F55°F105°F 196751°F 196010%0%
Aug 1687°F55°F106°F 196749°F 197610%0%
Aug 1787°F54°F110°F 197751°F 196910%0%
Aug 1886°F54°F107°F 198150°F 197310%0%
Aug 1986°F54°F103°F 196747°F 197510%0%
Aug 2086°F54°F107°F 200949°F 195211%0%
Aug 2186°F53°F100°F 195650°F 198811%0%
Aug 2285°F53°F104°F 197048°F 199211%0%
Aug 2385°F53°F102°F 197045°F 199211%0%
Aug 2485°F53°F101°F 195842°F 199211%0%
Aug 2584°F53°F103°F 195846°F 199211%0%
Aug 2684°F52°F99°F 197245°F 199312%0%
Aug 2784°F52°F107°F 198648°F 195412%0%
Aug 2883°F52°F104°F 197245°F 196012%0%
Aug 2983°F52°F102°F 196745°F 198012%0%
Aug 3083°F51°F104°F 196747°F 195212%0%
Aug 3183°F51°F103°F 196746°F 196412%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Columbia County, in percent, and of at least 0.1 inch of snowfall.02.557.51012.51102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 5:33 AM, sunset 8:22 PM
August 31
sunrise 6:11 AM, sunset 7:32 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00452030 (Dayton 1 Wsw), public domain. Records: NOAA GHCN-Daily, station USW00024160, 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.