Jamestown climate

Jamestown Weather in August

NOAA 1991-2020 normals for Newport Rose, 1.5 km from Jamestown

Average highs run from 79°F on August 1 to 77°F on August 31, and lows from 65°F to 63°F. Normal precipitation for the month is 3.29 in over about 11 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 Jamestown, in °F, with the record for each date.405060708090100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
78°F
Average low
64°F
Precipitation
3.29 in
Record high
93°FAug 2, 2006
Record low
49°FAug 19, 2007
Chance of a freeze
0%
Daylight
14 h 23 min to 13 h 09 min
Cloud cover
53%
Humidity
78%
Dew point
64°F
Wind
6.5 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 179°F65°F89°F 200654°F 202132%0%
Aug 279°F65°F93°F 200655°F 202532%0%
Aug 379°F65°F93°F 200655°F 202532%0%
Aug 479°F65°F89°F 200257°F 201632%0%
Aug 579°F65°F87°F 201857°F 201332%0%
Aug 679°F65°F88°F 201852°F 201333%0%
Aug 779°F65°F89°F 200153°F 200433%0%
Aug 879°F65°F89°F 200153°F 202533%0%
Aug 978°F65°F90°F 200151°F 202533%0%
Aug 1078°F65°F87°F 201852°F 199933%0%
Aug 1178°F65°F91°F 200554°F 200733%0%
Aug 1278°F64°F89°F 202056°F 200633%0%
Aug 1378°F64°F89°F 201650°F 200633%0%
Aug 1478°F64°F90°F 202054°F 200634%0%
Aug 1578°F64°F88°F 201657°F 201034%0%
Aug 1678°F64°F89°F 201855°F 201334%0%
Aug 1778°F64°F91°F 200254°F 200034%0%
Aug 1878°F64°F88°F 200953°F 200034%0%
Aug 1978°F64°F89°F 200249°F 200734%0%
Aug 2078°F64°F85°F 200354°F 199634%0%
Aug 2178°F64°F84°F 200353°F 200034%0%
Aug 2278°F64°F86°F 200554°F 200434%0%
Aug 2378°F64°F86°F 202054°F 200434%0%
Aug 2478°F64°F86°F 202253°F 201334%0%
Aug 2578°F64°F91°F 202052°F 200434%0%
Aug 2677°F64°F86°F 202150°F 200434%0%
Aug 2777°F63°F88°F 202153°F 201934%0%
Aug 2877°F63°F89°F 201852°F 202534%0%
Aug 2977°F63°F91°F 201856°F 200335%0%
Aug 3077°F63°F91°F 201854°F 201435%0%
Aug 3177°F63°F91°F 201054°F 200635%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Jamestown, 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 5:40 AM, sunset 8:03 PM
August 31
sunrise 6:11 AM, sunset 7:20 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00375215 (Newport Rose), public domain. Records: NOAA GHCN-Daily, station USW00014787, 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.