Petersburg weather in August: Petersburg, Virginia: normal highs, lows, rain and records for August
Petersburg in August has a normal high of 87°F and a normal low of 67°F, a daily mean of 77°F, falling from 89°F on the 1st to 86°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 5.31 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 20°C, 135 mm of precipitation in August.
- NOAA stationPetersburg
- Station IDUSC00446656
- Location37.24°N 77.39°W
- Elevation19 ft (6 m)
- Population34,058
- Jan 49° 28°
- Feb 52° 29°
- Mar 60° 36°
- Apr 70° 46°
- May 78° 55°
- Jun 86° 64°
- Jul 89° 69°
- Aug 87° 67°
- Sep 82° 61°
- Oct 72° 48°
- Nov 62° 37°
- Dec 53° 31°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Petersburg in August?
The normal high is 87°F and the normal low 67°F, for a daily mean of 77.4°F. August is 1.8°F cooler than July and 6.3°F warmer than September. August is the 2nd warmest month of the year in Petersburg and the 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.
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 35%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 89°F | 69°F | 35% | 24% |
| August 8 | 88°F | 68°F | 34% | 24% |
| August 15 | 88°F | 68°F | 33% | 23% |
| August 22 | 87°F | 67°F | 31% | 21% |
| August 31 | 86°F | 65°F | 28% | 18% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 89°F | 69°F | 35% | 24% | 14 h 10 min |
| August 2 | 89°F | 69°F | 35% | 24% | 14 h |
| August 3 | 89°F | 69°F | 35% | 24% | 14 h |
| August 4 | 88°F | 69°F | 35% | 24% | 14 h |
| August 5 | 88°F | 68°F | 35% | 24% | 14 h |
| August 6 | 88°F | 68°F | 35% | 24% | 14 h |
| August 7 | 88°F | 68°F | 35% | 24% | 13 h 50 min |
| August 8 | 88°F | 68°F | 34% | 24% | 13 h 50 min |
| August 9 | 88°F | 68°F | 34% | 24% | 13 h 50 min |
| August 10 | 88°F | 68°F | 34% | 24% | 13 h 50 min |
| August 11 | 88°F | 68°F | 34% | 24% | 13 h 50 min |
| August 12 | 88°F | 68°F | 34% | 24% | 13 h 40 min |
| August 13 | 88°F | 68°F | 34% | 23% | 13 h 40 min |
| August 14 | 88°F | 68°F | 33% | 23% | 13 h 40 min |
| August 15 | 88°F | 68°F | 33% | 23% | 13 h 40 min |
| August 16 | 88°F | 67°F | 33% | 23% | 13 h 40 min |
| August 17 | 88°F | 67°F | 33% | 23% | 13 h 30 min |
| August 18 | 87°F | 67°F | 32% | 22% | 13 h 30 min |
| August 19 | 87°F | 67°F | 32% | 22% | 13 h 30 min |
| August 20 | 87°F | 67°F | 31% | 22% | 13 h 30 min |
| August 21 | 87°F | 67°F | 31% | 21% | 13 h 30 min |
| August 22 | 87°F | 67°F | 31% | 21% | 13 h 20 min |
| August 23 | 87°F | 67°F | 30% | 21% | 13 h 20 min |
| August 24 | 87°F | 67°F | 30% | 20% | 13 h 20 min |
| August 25 | 87°F | 66°F | 29% | 20% | 13 h 20 min |
| August 26 | 87°F | 66°F | 29% | 19% | 13 h 10 min |
| August 27 | 86°F | 66°F | 29% | 19% | 13 h 10 min |
| August 28 | 86°F | 66°F | 28% | 19% | 13 h 10 min |
| August 29 | 86°F | 66°F | 28% | 19% | 13 h 10 min |
| August 30 | 86°F | 66°F | 28% | 18% | 13 h 10 min |
| August 31 | 86°F | 65°F | 28% | 18% | 13 h |
- Normal high
- 87°FAugust average
- Normal low
- 67°FAugust average
- Precipitation
- 5.31 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 12
- Daylight
- 14 h 10 min 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 USC00446656; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Petersburg in August?
On a given August day the chance of 0.01 inch or more is 32% on average, highest around August 3 (35%). In all, 5.31 in falls on 10 days of a normal August, 2 of them with an inch or more.
In a normal August in Petersburg, 12 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00446656.
What are the records for August in Petersburg?
The August mean against the 1991-2020 normal of 77.4°F: 2021 79.8°F (+2.4), 2022 78.1°F (+0.7), 2023 77.3°F (−0.1), 2024 77.3°F (−0.1), 2025 74.7°F (−2.8), 2026 80.5°F (+3.1). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 79.8°F | +2.4°F | 10.37 in |
| 2022 | 78.1°F | +0.7°F | 3.77 in |
| 2023 | 77.3°F | −0.1°F | 2.17 in |
| 2024 | 77.3°F | −0.1°F | 6.38 in |
| 2025 | 74.7°F | −2.8°F | 1.02 in |
| 2026 | 80.5°F | +3.1°F | 4.27 in |
Source: recent months: ACIS, station USC00446656. Records and recent months use complete months only.
How does August in Petersburg compare across Virginia?
Across the 81 places PlainClimate covers in Virginia, August normal highs run from 79°F in Floyd to 90°F in Chesapeake; Petersburg's is 87°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.