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

Apex in August has a normal high of 87°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 10 days in a normal August, 4.64 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 31°C and low of 20°C, 118 mm of precipitation in August.

  • NOAA stationApex
  • Station IDUSC00310212
  • Location35.74°N 78.84°W
  • Elevation450 ft (137 m)
  • From the center3 miles
  • Population75,977
  1. Jan 51° 31°
  2. Feb 54° 33°
  3. Mar 62° 39°
  4. Apr 72° 48°
  5. May 79° 57°
  6. Jun 86° 65°
  7. Jul 89° 69°
  8. Aug 87° 68°
  9. Sep 82° 62°
  10. Oct 72° 50°
  11. Nov 62° 40°
  12. Dec 54° 34°

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

How warm is Apex in August?

The normal high is 87°F and the normal low 68°F, for a daily mean of 77.5°F. August is 1.7°F cooler than July and 5.9°F warmer than September. August is the 2nd warmest month of the year in Apex and the 3rd 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 75°F and 80°F.

Apex 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 37%).

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°F37%25%
August 888°F69°F36%24%
August 1588°F68°F34%23%
August 2287°F67°F32%22%
August 3186°F66°F30%21%
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
Apex: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 189°F69°F37%25%14 h
August 289°F69°F37%25%14 h
August 389°F69°F37%25%14 h
August 489°F69°F36%25%13 h 50 min
August 588°F69°F36%25%13 h 50 min
August 688°F69°F36%25%13 h 50 min
August 788°F69°F36%24%13 h 50 min
August 888°F69°F36%24%13 h 50 min
August 988°F69°F35%24%13 h 40 min
August 1088°F68°F35%24%13 h 40 min
August 1188°F68°F35%24%13 h 40 min
August 1288°F68°F35%24%13 h 40 min
August 1388°F68°F35%24%13 h 40 min
August 1488°F68°F34%24%13 h 40 min
August 1588°F68°F34%23%13 h 30 min
August 1688°F68°F34%23%13 h 30 min
August 1788°F68°F34%23%13 h 30 min
August 1887°F68°F33%23%13 h 30 min
August 1987°F68°F33%23%13 h 30 min
August 2087°F67°F33%22%13 h 20 min
August 2187°F67°F32%22%13 h 20 min
August 2287°F67°F32%22%13 h 20 min
August 2387°F67°F32%22%13 h 20 min
August 2487°F67°F32%22%13 h 20 min
August 2587°F67°F31%21%13 h 10 min
August 2686°F67°F31%21%13 h 10 min
August 2786°F66°F31%21%13 h 10 min
August 2886°F66°F31%21%13 h 10 min
August 2986°F66°F30%21%13 h
August 3086°F66°F30%21%13 h
August 3186°F66°F30%21%13 h
Normal high
87°FAugust average
Normal low
68°FAugust average
Precipitation
4.64 inmonth total
Days with precipitation
100.01 inch or more
Days at 90°F or more
11
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
80%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USC00310212; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Apex in August?

On a given August day the chance of 0.01 inch or more is 34% on average, highest around August 1 (37%). In all, 4.64 in falls on 10 days of a normal August, 2 of them with an inch or more.

In a normal August in Apex, 11 days reach 90°F.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00310212.

What are the records for August in Apex?

The August mean against the 1991-2020 normal of 77.5°F: 2021 79.6°F (+2.1), 2022 77.6°F (+0.1), 2023 79.1°F (+1.6), 2024 77.1°F (−0.4). 3 of 4 ran warmer than normal.

Apex: August in recent years against the 1991-2020 normal
AugustMeanAgainst normalPrecip.
202179.6°F+2.1°F2.81 in
202277.6°F+0.1°F2.71 in
202379.1°F+1.6°F3.87 in
202477.1°F−0.4°F9.48 in

Source: recent months: ACIS, station USC00310212. Records and recent months use complete months only.

How does August in Apex 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; Apex's is 87°F.

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

Other months and places