Chapel Hill weather in August: Chapel Hill, North Carolina: normal highs, lows, rain and records for August

Chapel Hill in August has a normal high of 88°F and a normal low of 68°F, a daily mean of 78°F, falling from 89°F on the 1st to 86°F by the 31st. Measurable precipitation falls on 12 days in a normal August, 3.81 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 31°C and low of 20°C, 97 mm of precipitation in August.

  • NOAA stationChapel Hill Williams Airport
  • Station IDUSW00093785
  • Location35.93°N 79.06°W
  • Elevation512 ft (156 m)
  • From the center1 miles
  • Population64,028
  1. Jan 51° 32°
  2. Feb 55° 34°
  3. Mar 63° 40°
  4. Apr 72° 48°
  5. May 79° 57°
  6. Jun 86° 65°
  7. Jul 90° 69°
  8. Aug 88° 68°
  9. Sep 82° 62°
  10. Oct 72° 50°
  11. Nov 62° 40°
  12. Dec 54° 35°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Chapel Hill in August?

The normal high is 88°F and the normal low 68°F, for a daily mean of 77.9°F. August is 1.6°F cooler than July and 5.9°F warmer than September. August is the 2nd warmest month of the year in Chapel Hill and the 5th wettest. Across the month the normal high falls 3°F, from 89°F on August 1 to 86°F on August 31. From one year to the next August's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 76°F and 80°F.

Chapel Hill in August, day by day: normal high and low

Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 41%).

Normal high and low on five days of August, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
August 189°F69°F41%23%
August 889°F69°F41%23%
August 1588°F68°F41%22%
August 2287°F67°F40%21%
August 3186°F66°F39%21%
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
Chapel Hill: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 189°F69°F41%23%14 h
August 289°F69°F41%23%14 h
August 389°F69°F41%23%14 h
August 489°F69°F41%23%13 h 50 min
August 589°F69°F41%23%13 h 50 min
August 689°F69°F41%23%13 h 50 min
August 789°F69°F41%23%13 h 50 min
August 889°F69°F41%23%13 h 50 min
August 989°F69°F41%23%13 h 50 min
August 1088°F69°F41%23%13 h 40 min
August 1188°F68°F41%23%13 h 40 min
August 1288°F68°F41%22%13 h 40 min
August 1388°F68°F41%22%13 h 40 min
August 1488°F68°F41%22%13 h 40 min
August 1588°F68°F41%22%13 h 30 min
August 1688°F68°F41%22%13 h 30 min
August 1788°F68°F41%22%13 h 30 min
August 1888°F68°F40%22%13 h 30 min
August 1988°F68°F40%22%13 h 30 min
August 2088°F68°F40%22%13 h 20 min
August 2188°F68°F40%21%13 h 20 min
August 2287°F67°F40%21%13 h 20 min
August 2387°F67°F40%21%13 h 20 min
August 2487°F67°F40%21%13 h 20 min
August 2587°F67°F40%21%13 h 10 min
August 2687°F67°F39%21%13 h 10 min
August 2787°F67°F39%21%13 h 10 min
August 2887°F67°F39%21%13 h 10 min
August 2986°F67°F39%21%13 h 10 min
August 3086°F66°F39%21%13 h
August 3186°F66°F39%21%13 h
Normal high
88°FAugust average
Normal low
68°FAugust average
Precipitation
3.81 inmonth total
Days with precipitation
120.01 inch or more
Days at 90°F or more
14
Daylight
14 h to 13 hAugust 1 to August 31
Days at 70°F or more
31
Days at 80°F or more
29
Sunshine
79%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00093785; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Chapel Hill in August?

On a given August day the chance of 0.01 inch or more is 40% on average, highest around August 1 (41%). In all, 3.81 in falls on 12 days of a normal August, 1 of them with an inch or more.

In a normal August in Chapel Hill, 14 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00093785.

How does August in Chapel Hill compare across North Carolina?

Across the 131 places PlainClimate covers in North Carolina, August normal highs run from 68°F in Beech Mountain to 90°F in Southport; Chapel Hill's is 88°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places