Columbus weather in August: Columbus, Ohio: normal highs, lows, rain and records for August
Columbus in August has a normal high of 84°F and a normal low of 64°F, a daily mean of 74°F, falling from 85°F on the 1st to 82°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 3.74 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 29°C and low of 18°C, 95 mm of precipitation in August.
- NOAA stationColumbus Port Columbus International Airport
- Station IDUSW00014821
- Location39.99°N 82.88°W
- Elevation810 ft (247 m)
- From the center6 miles
- Population933,263
- Jan 37° 22°
- Feb 41° 24°
- Mar 51° 32°
- Apr 64° 42°
- May 74° 52°
- Jun 82° 62°
- Jul 85° 65°
- Aug 84° 64°
- Sep 78° 57°
- Oct 66° 45°
- Nov 52° 35°
- Dec 42° 27°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Columbus in August?
The normal high is 84°F and the normal low 64°F, for a daily mean of 74.0°F. August is 1.4°F cooler than July and 6.8°F warmer than September. August is the 2nd warmest month of the year in Columbus and the 5th wettest. Across the month the normal high falls 3°F, from 85°F on August 1 to 82°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 72°F and 76°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 33%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 85°F | 65°F | 33% | 22% |
| August 8 | 85°F | 65°F | 32% | 21% |
| August 15 | 84°F | 64°F | 31% | 21% |
| August 22 | 84°F | 63°F | 30% | 20% |
| August 31 | 82°F | 62°F | 29% | 19% |
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 | 85°F | 65°F | 33% | 22% | 14 h 20 min |
| August 2 | 85°F | 65°F | 33% | 22% | 14 h 20 min |
| August 3 | 85°F | 65°F | 33% | 22% | 14 h 10 min |
| August 4 | 85°F | 65°F | 33% | 22% | 14 h 10 min |
| August 5 | 85°F | 65°F | 33% | 21% | 14 h 10 min |
| August 6 | 85°F | 65°F | 32% | 21% | 14 h 10 min |
| August 7 | 85°F | 65°F | 32% | 21% | 14 h 10 min |
| August 8 | 85°F | 65°F | 32% | 21% | 14 h |
| August 9 | 85°F | 65°F | 32% | 21% | 14 h |
| August 10 | 85°F | 65°F | 32% | 21% | 14 h |
| August 11 | 85°F | 65°F | 32% | 21% | 14 h |
| August 12 | 85°F | 65°F | 31% | 21% | 13 h 50 min |
| August 13 | 85°F | 65°F | 31% | 21% | 13 h 50 min |
| August 14 | 84°F | 64°F | 31% | 21% | 13 h 50 min |
| August 15 | 84°F | 64°F | 31% | 21% | 13 h 50 min |
| August 16 | 84°F | 64°F | 31% | 21% | 13 h 50 min |
| August 17 | 84°F | 64°F | 31% | 21% | 13 h 40 min |
| August 18 | 84°F | 64°F | 30% | 21% | 13 h 40 min |
| August 19 | 84°F | 64°F | 30% | 20% | 13 h 40 min |
| August 20 | 84°F | 64°F | 30% | 20% | 13 h 40 min |
| August 21 | 84°F | 64°F | 30% | 20% | 13 h 30 min |
| August 22 | 84°F | 63°F | 30% | 20% | 13 h 30 min |
| August 23 | 84°F | 63°F | 30% | 20% | 13 h 30 min |
| August 24 | 84°F | 63°F | 30% | 20% | 13 h 30 min |
| August 25 | 83°F | 63°F | 29% | 20% | 13 h 20 min |
| August 26 | 83°F | 63°F | 29% | 20% | 13 h 20 min |
| August 27 | 83°F | 63°F | 29% | 20% | 13 h 20 min |
| August 28 | 83°F | 62°F | 29% | 20% | 13 h 20 min |
| August 29 | 83°F | 62°F | 29% | 20% | 13 h 10 min |
| August 30 | 83°F | 62°F | 29% | 20% | 13 h 10 min |
| August 31 | 82°F | 62°F | 29% | 19% | 13 h 10 min |
- Normal high
- 84°FAugust average
- Normal low
- 64°FAugust average
- Precipitation
- 3.74 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 6
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 25
- Sunshine
- 80%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014821; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Columbus in August?
On a given August day the chance of 0.01 inch or more is 31% on average, highest around August 1 (33%). In all, 3.74 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Columbus, 6 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014821.
How humid and windy is Columbus in August?
At 3 p.m. the normal temperature is 81°F with 50% relative humidity and a dew point of 61°F; at 6 a.m. it is 64°F with 87% humidity. The wind averages 5.7 mph, most often from the west in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 64°F | 60°F | 87% | 3.4 mph | 49% |
| 9 a.m. | 71°F | 62°F | 72% | 5.7 mph | 43% |
| noon | 79°F | 62°F | 56% | 7.8 mph | 27% |
| 3 p.m. | 81°F | 61°F | 50% | 8.6 mph | 21% |
| 6 p.m. | 79°F | 61°F | 54% | 8.2 mph | 35% |
| 9 p.m. | 72°F | 62°F | 71% | 4.8 mph | 52% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014821. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Columbus?
The warmest August temperature on Columbus's official record (since 1878) is 103°F, on August 5, 1918; the coldest is 39°F, on August 29, 1965. The wettest August brought 11.46 in (2003).
The August mean against the 1991-2020 normal of 74.0°F: 2021 76.7°F (+2.7), 2022 73.9°F (−0.1), 2023 73.0°F (−1.0), 2024 76.2°F (+2.2), 2025 73.0°F (−1.0), 2026 74.7°F (+0.7). 3 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.7°F | +2.7°F | 7.16 in |
| 2022 | 73.9°F | −0.1°F | 3.22 in |
| 2023 | 73.0°F | −1.0°F | 4.48 in |
| 2024 | 76.2°F | +2.2°F | 1.98 in |
| 2025 | 73.0°F | −1.0°F | 0.61 in |
| 2026 | 74.7°F | +0.7°F | 9.94 in |
Source: records: ACIS, NWS threaded record CMHthr; recent months: ACIS, station USW00014821. Records and recent months use complete months only.
How does August in Columbus compare across Ohio?
Across the 99 places PlainClimate covers in Ohio, August normal highs run from 79°F in Ashtabula to 87°F in Lucasville; Columbus's is 84°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.