Bethesda climate

Bethesda Weather in August

NOAA 1991-2020 normals for Barnesville, 9.9 km from Bethesda

Average highs run from 83°F on August 1 to 80°F on August 31, and lows from 62°F to 58°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 Bethesda, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
82°F
Average low
61°F
Record high
99°FAug 27, 1948
Record low
42°FAug 21, 1950
Chance of a freeze
0%
Days of 90°F or more
3.8
Daylight
14 h 15 min to 13 h 06 min
Cloud cover
56%
Humidity
66%
Dew point
60°F
Wind
3.4 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 183°F62°F95°F 200249°F 19520%
Aug 283°F62°F95°F 200253°F 19510%
Aug 383°F62°F94°F 200253°F 20250%
Aug 483°F62°F95°F 200250°F 19500%
Aug 583°F62°F91°F 201146°F 19510%
Aug 683°F62°F94°F 202449°F 20040%
Aug 783°F62°F91°F 199850°F 20040%
Aug 883°F62°F92°F 200150°F 20020%
Aug 983°F61°F93°F 194953°F 20080%
Aug 1083°F61°F93°F 194954°F 19990%
Aug 1183°F61°F93°F 194953°F 20190%
Aug 1283°F61°F94°F 200551°F 20080%
Aug 1382°F61°F97°F 200550°F 19500%
Aug 1482°F61°F92°F 200250°F 19500%
Aug 1582°F61°F91°F 195147°F 20130%
Aug 1682°F61°F90°F 202548°F 20140%
Aug 1782°F61°F90°F 195053°F 20000%
Aug 1882°F60°F89°F 201955°F 20070%
Aug 1982°F60°F91°F 202551°F 19980%
Aug 2082°F60°F93°F 200547°F 19490%
Aug 2182°F60°F88°F 199842°F 19500%
Aug 2281°F60°F92°F 200246°F 19500%
Aug 2381°F60°F90°F 194845°F 19520%
Aug 2481°F60°F92°F 194845°F 19510%
Aug 2581°F59°F95°F 194847°F 19520%
Aug 2681°F59°F95°F 194851°F 20170%
Aug 2781°F59°F99°F 194845°F 20250%
Aug 2880°F59°F98°F 194848°F 20250%
Aug 2980°F59°F94°F 202450°F 20140%
Aug 3080°F59°F95°F 202447°F 20250%
Aug 3180°F58°F93°F 201045°F 20090%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Bethesda, 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 (EDT).

August 1
sunrise 6:23 AM, sunset 8:38 PM
August 31
sunrise 6:51 AM, sunset 7:57 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00330430 (Barnesville), public domain. Records: NOAA GHCN-Daily, station USW00014894, 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.