Charles County climate

Charles County Weather in August

NOAA 1991-2020 normals for Mechanicsville 5 Ne, 25.1 km from Charles County

Average highs run from 85°F on August 1 to 81°F on August 31, and lows from 66°F to 62°F. Normal precipitation for the month is 4.84 in over about 9 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 Charles County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
83°F
Average low
64°F
Precipitation
4.84 in
Record high
104°FAug 8, 2007
Record low
46°FAug 29, 1986
Chance of a freeze
0%
Days of 90°F or more
4.1
Daylight
14 h 08 min to 13 h 02 min
Cloud cover
53%
Humidity
71%
Dew point
65°F
Wind
4.7 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 185°F66°F97°F 196857°F 196633%0%
Aug 285°F66°F100°F 202457°F 194733%0%
Aug 384°F66°F97°F 195756°F 195933%0%
Aug 484°F65°F100°F 197558°F 196533%0%
Aug 584°F65°F99°F 201254°F 195132%0%
Aug 684°F65°F97°F 195554°F 194832%0%
Aug 784°F65°F95°F 196854°F 200432%0%
Aug 884°F65°F104°F 200756°F 200432%0%
Aug 984°F65°F97°F 198354°F 198932%0%
Aug 1084°F65°F97°F 194960°F 194532%0%
Aug 1184°F65°F99°F 194955°F 197232%0%
Aug 1284°F65°F97°F 194956°F 196832%0%
Aug 1384°F65°F98°F 201654°F 195032%0%
Aug 1484°F65°F99°F 201653°F 195031%0%
Aug 1584°F64°F101°F 198850°F 196431%0%
Aug 1684°F64°F98°F 198855°F 196331%0%
Aug 1783°F64°F104°F 198856°F 198331%0%
Aug 1883°F64°F98°F 198758°F 195331%0%
Aug 1983°F64°F97°F 201954°F 195330%0%
Aug 2083°F64°F98°F 195551°F 196430%0%
Aug 2183°F64°F97°F 195155°F 194930%0%
Aug 2283°F64°F101°F 198355°F 202429%0%
Aug 2383°F64°F97°F 196854°F 195229%0%
Aug 2483°F63°F96°F 196850°F 195229%0%
Aug 2583°F63°F95°F 194749°F 195229%0%
Aug 2682°F63°F98°F 194850°F 196329%0%
Aug 2782°F63°F100°F 198752°F 194528%0%
Aug 2882°F63°F97°F 194852°F 194528%0%
Aug 2982°F63°F98°F 194846°F 198628%0%
Aug 3082°F62°F101°F 195349°F 198628%0%
Aug 3181°F62°F99°F 195348°F 194628%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Charles County, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:10 AM, sunset 8:18 PM
August 31
sunrise 6:37 AM, sunset 7:39 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00185865 (Mechanicsville 5 Ne), public domain. Records: NOAA GHCN-Daily, station USW00013773, 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.