Washington County climate

Washington County Weather in August

NOAA 1991-2020 normals for Brenham, 6.2 km from Washington County

Average highs run from 95°F on August 1 to 93°F on August 31, and lows from 74°F to 72°F. Normal precipitation for the month is 3.83 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 Washington County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
95°F
Average low
74°F
Precipitation
3.83 in
Record high
111°FAug 19, 1909
Record low
59°FAug 14, 1967
Chance of a freeze
0%
Days of 90°F or more
28.5
Daylight
13 h 35 min to 12 h 47 min
Cloud cover
44%
Humidity
68%
Dew point
71°F
Wind
6.9 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Aug 195°F74°F105°F 194866°F 192517%
Aug 296°F74°F107°F 199865°F 192517%
Aug 396°F74°F107°F 199865°F 194917%
Aug 496°F74°F107°F 199866°F 197618%
Aug 596°F74°F106°F 195166°F 197618%
Aug 696°F74°F105°F 195168°F 197318%
Aug 796°F74°F105°F 195169°F 192918%
Aug 896°F74°F105°F 196268°F 196118%
Aug 996°F74°F107°F 196265°F 198919%
Aug 1096°F74°F110°F 196262°F 198919%
Aug 1196°F74°F110°F 196266°F 198919%
Aug 1296°F74°F109°F 196964°F 193119%
Aug 1396°F74°F109°F 196261°F 200420%
Aug 1496°F74°F106°F 196259°F 196720%
Aug 1596°F74°F104°F 191762°F 192920%
Aug 1695°F74°F105°F 194863°F 200421%
Aug 1795°F74°F106°F 195161°F 199221%
Aug 1895°F74°F109°F 190962°F 199221%
Aug 1995°F74°F111°F 190966°F 201321%
Aug 2095°F74°F105°F 194864°F 192722%
Aug 2195°F74°F106°F 194861°F 194022%
Aug 2295°F74°F106°F 191763°F 194022%
Aug 2395°F73°F106°F 191763°F 194923%
Aug 2494°F73°F106°F 198063°F 196123%
Aug 2594°F73°F106°F 198062°F 196123%
Aug 2694°F73°F104°F 195263°F 192623%
Aug 2794°F73°F106°F 199061°F 192624%
Aug 2894°F73°F109°F 201161°F 192624%
Aug 2994°F73°F109°F 201161°F 199224%
Aug 3093°F72°F106°F 201163°F 196824%
Aug 3193°F72°F106°F 195462°F 191524%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Washington County, in percent.05101520251102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:44 AM, sunset 8:19 PM
August 31
sunrise 7:02 AM, sunset 7:49 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00411048 (Brenham), public domain. Records: NOAA GHCN-Daily, station USC00411048, 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.