Chatham County climate

Chatham County Weather in August

NOAA 1991-2020 normals for Siler City 2 N, 19.8 km from Chatham County

Average highs run from 88°F on August 1 to 85°F on August 31, and lows from 69°F to 65°F. Normal precipitation for the month is 4.03 in over about 10 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 Chatham 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
67°F
Precipitation
4.03 in
Record high
107°FAug 18, 1988
Record low
42°FAug 31, 1976
Chance of a freeze
0%
Days of 90°F or more
9.4
Daylight
13 h 56 min to 12 h 58 min
Cloud cover
56%
Humidity
72%
Dew point
67°F
Wind
4.0 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 188°F69°F101°F 198054°F 199734%0%
Aug 288°F69°F102°F 199955°F 199234%0%
Aug 388°F69°F99°F 200655°F 198534%0%
Aug 488°F68°F98°F 198752°F 197634%0%
Aug 588°F68°F100°F 198753°F 198534%0%
Aug 688°F68°F98°F 198757°F 199234%0%
Aug 788°F68°F99°F 199951°F 200434%0%
Aug 888°F68°F104°F 200751°F 200234%0%
Aug 988°F68°F104°F 200752°F 200233%0%
Aug 1088°F68°F103°F 200754°F 200233%0%
Aug 1187°F68°F99°F 199256°F 199233%0%
Aug 1287°F68°F99°F 199953°F 199233%0%
Aug 1387°F68°F98°F 202151°F 199233%0%
Aug 1487°F67°F98°F 199550°F 199233%0%
Aug 1587°F67°F98°F 200751°F 198332%0%
Aug 1687°F67°F101°F 200753°F 197932%0%
Aug 1787°F67°F101°F 198849°F 197932%0%
Aug 1887°F67°F107°F 198852°F 197631%0%
Aug 1987°F67°F105°F 198854°F 197731%0%
Aug 2087°F67°F102°F 198354°F 199831%0%
Aug 2187°F67°F105°F 198351°F 200030%0%
Aug 2286°F66°F103°F 198352°F 200030%0%
Aug 2386°F66°F103°F 198351°F 202430%0%
Aug 2486°F66°F103°F 200252°F 199730%0%
Aug 2586°F66°F98°F 197552°F 198629%0%
Aug 2686°F66°F98°F 197551°F 201329%0%
Aug 2786°F66°F97°F 198751°F 201329%0%
Aug 2886°F65°F97°F 198754°F 198129%0%
Aug 2985°F65°F98°F 197345°F 198628%0%
Aug 3085°F65°F99°F 199348°F 198228%0%
Aug 3185°F65°F96°F 197342°F 197628%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Chatham 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 6:25 AM, sunset 8:21 PM
August 31
sunrise 6:48 AM, sunset 7:46 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00317924 (Siler City 2 N), public domain. Records: NOAA GHCN-Daily, station USC00317656, 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.