Columbus, OH weather in August
In August, Columbus sees highs around 84°F and lows around 64°F: warm and often humid, with some rain. There are about 10 days with rain. It is one of the warmest months in Columbus.
- Normal high
- 84°F
- Normal low
- 64°F
- Wet days
- 10
- 3.7 in total
- Muggy days
- 12
- dew point 65°F+
How August changes from start to finish
| August 1 | August 31 | |
|---|---|---|
| Normal high | 85°F | 82°F |
| Normal low | 65°F | 62°F |
| Chance of a wet day | 33% | 29% |
| Sunrise / sunset | 6:30 am / 8:46 pm | 6:59 am / 8:05 pm |
| Daylight | 14.3 h | 13.1 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical August day
- 6 am66°Fdew point 62°F
- 9 am73°Fdew point 63°F
- Noon80°Fdew point 62°F
- 3 pm82°Fdew point 62°F
- 6 pm80°Fdew point 62°F
- 9 pm74°Fdew point 63°F
NOAA hourly normals (local standard time) from Columbus Port Columbus Intl Airport (7 mi away); average wind 6 mph; clear or few clouds in 39% of daytime hours, mostly cloudy or overcast in 42%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F5 of 31
- Hot dayshigh 90°F or more6 of 31
- Muggy daysdaily mean dew point 65°F or more12 of 31
- Wet daysat least 0.01 in of rain or melted snow10 of 31
- Notable rainat least 0.10 in6 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per August, counted from daily records for each year 1991-2020.
Rain in August
Normal precipitation is 3.7 in; a dry August brings about 2.3 in and a wet one about 4.6 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How August varies from year to year
- Warmest August, 1991-20201995: average high 88°F
- Coolest August1997: average high 79°F
- Wettest August2003: 11.5 in
- Driest August1993: 0.7 in
- Highest reading99°F (August 2, 1991)
- Lowest reading49°F (August 31, 2009)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
August compared with July and September
| July | August | September | |
|---|---|---|---|
| Normal high | 85°F | 84°F | 78°F |
| Normal low | 65°F | 64°F | 57°F |
| Wet days | 11 | 10 | 9 |
| Comfortable days | 4 | 5 | 13 |
| Daylight | 14.7 h | 13.7 h | 12.4 h |
Highs change by -1°F from July and -6°F into September.
How Columbus ranks in August
- Normal high228th warmest of 378 cities; 3rd of 6 in Ohio
- Wet days227th driest of 378
- Comfortable days135th most of 341
What to pack for Columbus in August
- A rain jacket or umbrella – rain on about 10 days
Heating and cooling
August has 3 heating degree days and 282 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Columbus in August?
The normal high is 84°F and the normal low is 64°F. From 1991 to 2020 the hottest August reading was 99°F (August 2, 1991).
Does it rain a lot in Columbus in August?
About 10 days in August have at least 0.01 in of precipitation, and the normal total is 3.7 in. The wettest August in 1991-2020 was in 2003 (11.5 in); the driest was in 1993 (0.7 in).
Is August a good time to visit Columbus?
August ranks 6th of 12 months on our comfort score for Columbus (54 out of 100). It has about 5 comfortable days and about 6 days at 90°F or hotter. The best month is May.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Columbus Port Columbus Intl Airport (USW00014821), 6.6 mi ENE of the city center, 810 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Wright Patterson AFB (USW00013840), 56 mi W of the city center, 823 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Port Columbus International Airport (724280-14821), 6.8 mi ENE of the city center, 810 ft . Hourly observations, 1991-2020.