August is one of the warmer months of the year in Columbus, with average highs near 33.6°C and lows around 21.5°C (mean 27.6°C). It is about average for rainfall, averaging 104 mm of rainfall and 72% relative humidity across the period.
August is one of the warmer months of the year in Columbus. Across 45 years of records, the warmest August in Columbus was 2007 — when the month averaged 30.3°C — while the coldest was 1994 at 24.9°C. Typical August days reach 33.6°C with nights near 21.5°C. The long-term trend is warming, about 0.2°C per decade.
August is about average for rainfall in Columbus, averaging 104 mm of rainfall. The wettest August on record was 2008 with 244 mm, while the driest was 2002 at 50 mm.
Relative humidity in Columbus during August averages 72%. The most humid August was 2003 at 82%, and the least humid was 2000 at 61%.
August receives about 5.5 kWh/m²/day of solar energy in Columbus. The sunniest August was 2024 at 6.5 kWh/m²/day, and the cloudiest were 1986 and 2005 at 4.9.
Average wind speed in Columbus during August is 0.2 m/s. The windiest Augusts were 1995, 1998 and 2008 at 0.3 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 27.2°C | 27.3°C | 27.6°C | 27.8°C | 28.0°C | +0.8°C |
| Avg High | 33.1°C | 33.6°C | 33.7°C | 33.8°C | 34.2°C | +1.1°C |
| Avg Low | 21.2°C | 21.1°C | 21.6°C | 21.9°C | 21.9°C | +0.7°C |
| Avg Rain | 89 mm | 91 mm | 118 mm | 102 mm | 126 mm | +37 mm |
August temperatures in Columbus have risen by about 1.2°C between 1981–1985 and 2021–2025.
August has ranged from a record low of 13.2°C (1986) to a record high of 42.2°C (2007).
Rainfall in August is about average for rainfall, averaging 104 mm, with a wettest year of 244 mm.
A good time to visit Columbus
August is a good time to visit Columbus, with days averaging 33.6°C and nights around 21.5°C (mean 27.6°C, warmer than Columbus's yearly average) and higher rainfall. May and September are marginally more temperate, but August still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 32.5°C | 26.7°C | 20.9°C | 37.8°C | 15.2°C | 138 mm | 76% | 0.2 m/s | 5 |
| 2024 | 35.9°C | 28.8°C | 21.6°C | 38.9°C | 18.2°C | 50 mm | 66% | 0.2 m/s | 6.5 |
| 2023 | 36.7°C | 29.7°C | 22.6°C | 40.5°C | 18.2°C | 110 mm | 68% | 0.2 m/s | 5.9 |
| 2022 | 33.2°C | 27.5°C | 21.7°C | 36.2°C | 19.6°C | 152 mm | 76% | 0.2 m/s | 5.4 |
| 2021 | 32.7°C | 27.4°C | 22.2°C | 37.0°C | 19.4°C | 184 mm | 78% | 0.2 m/s | 5.4 |
| 2020 | 34.1°C | 28.1°C | 22.2°C | 38.3°C | 20.0°C | 119 mm | 73% | 0.2 m/s | 5.6 |
| 2019 | 35.5°C | 29.0°C | 22.5°C | 40.3°C | 17.3°C | 105 mm | 69% | 0.2 m/s | 5.9 |
| 2018 | 32.2°C | 26.8°C | 21.5°C | 35.3°C | 18.5°C | 117 mm | 78% | 0.2 m/s | 5.6 |
| 2017 | 32.6°C | 26.9°C | 21.3°C | 37.1°C | 17.4°C | 121 mm | 75% | 0.2 m/s | 5.4 |
| 2016 | 35.0°C | 28.9°C | 22.8°C | 39.8°C | 20.7°C | 107 mm | 71% | 0.2 m/s | 5.8 |
| 2015 | 33.2°C | 27.3°C | 21.3°C | 39.3°C | 14.7°C | 140 mm | 73% | 0.2 m/s | 5.8 |
| 2014 | 34.2°C | 27.8°C | 21.4°C | 38.4°C | 16.9°C | 60 mm | 69% | 0.2 m/s | 5.9 |
| 2013 | 31.2°C | 26.1°C | 21.0°C | 33.9°C | 15.4°C | 130 mm | 82% | 0.2 m/s | 5.2 |
| 2012 | 32.4°C | 26.8°C | 21.2°C | 37.7°C | 15.6°C | 96 mm | 75% | 0.2 m/s | 5.1 |
| 2011 | 36.2°C | 29.3°C | 22.4°C | 39.0°C | 18.6°C | 54 mm | 64% | 0.2 m/s | 6.1 |
| 2010 | 35.3°C | 29.5°C | 23.6°C | 39.1°C | 20.3°C | 85 mm | 71% | 0.2 m/s | 5.5 |
| 2009 | 31.8°C | 26.4°C | 21.0°C | 36.4°C | 16.0°C | 145 mm | 79% | 0.2 m/s | 5.2 |
| 2008 🌧️ | 32.2°C | 26.8°C | 21.5°C | 37.3°C | 16.5°C | 244 mm | 75% | 0.3 m/s | 5.1 |
| 2007 🔥 | 37.2°C | 30.3°C | 23.4°C | 42.2°C | 20.8°C | 89 mm | 64% | 0.2 m/s | 5.6 |
| 2006 | 35.8°C | 29.3°C | 22.9°C | 39.1°C | 20.3°C | 89 mm | 68% | 0.2 m/s | 5.4 |
| 2005 | 31.5°C | 26.9°C | 22.3°C | 35.7°C | 18.7°C | 159 mm | 82% | 0.2 m/s | 4.9 |
| 2004 | 33.0°C | 26.5°C | 19.9°C | 37.8°C | 14.8°C | 116 mm | 69% | 0.2 m/s | 5.6 |
| 2003 | 31.4°C | 26.7°C | 22.0°C | 35.7°C | 20.2°C | 127 mm | 82% | 0.2 m/s | 5 |
| 2002 | 34.6°C | 27.9°C | 21.2°C | 39.1°C | 17.2°C | 50 mm | 66% | 0.2 m/s | 5.6 |
| 2001 | 33.4°C | 27.2°C | 21.0°C | 36.2°C | 15.7°C | 78 mm | 71% | 0.2 m/s | 5.4 |
| 2000 | 35.6°C | 28.3°C | 21.0°C | 41.6°C | 17.5°C | 83 mm | 61% | 0.2 m/s | 5.7 |
| 1999 | 36.9°C | 29.3°C | 21.7°C | 40.5°C | 18.3°C | 69 mm | 62% | 0.2 m/s | 6 |
| 1998 | 34.3°C | 27.4°C | 20.5°C | 39.1°C | 15.7°C | 68 mm | 66% | 0.3 m/s | 5.8 |
| 1997 | 33.0°C | 26.6°C | 20.2°C | 37.1°C | 15.5°C | 51 mm | 71% | 0.2 m/s | 5.7 |
| 1996 | 33.4°C | 27.3°C | 21.2°C | 36.4°C | 18.4°C | 101 mm | 70% | 0.2 m/s | 5.3 |
| 1995 | 35.5°C | 29.1°C | 22.8°C | 41.0°C | 20.3°C | 105 mm | 69% | 0.3 m/s | 5.2 |
| 1994 ❄️ | 30.0°C | 24.9°C | 19.8°C | 33.2°C | 16.2°C | 104 mm | 81% | 0.2 m/s | 5.6 |
| 1993 | 34.7°C | 28.2°C | 21.8°C | 38.4°C | 18.0°C | 102 mm | 69% | 0.2 m/s | 5.5 |
| 1992 | 30.8°C | 25.4°C | 20.1°C | 36.1°C | 13.8°C | 144 mm | 77% | 0.2 m/s | 5 |
| 1991 | 30.9°C | 25.9°C | 20.9°C | 36.2°C | 14.4°C | 116 mm | 81% | 0.2 m/s | 5.1 |
| 1990 | 36.3°C | 29.3°C | 22.4°C | 39.7°C | 20.0°C | 52 mm | 62% | 0.2 m/s | 5.5 |
| 1989 | 31.3°C | 26.0°C | 20.8°C | 35.8°C | 15.6°C | 82 mm | 79% | 0.2 m/s | 5.4 |
| 1988 | 35.0°C | 28.6°C | 22.1°C | 37.7°C | 17.7°C | 61 mm | 68% | 0.2 m/s | 5 |
| 1987 | 35.2°C | 28.9°C | 22.6°C | 39.1°C | 19.5°C | 73 mm | 69% | 0.2 m/s | 5.7 |
| 1986 | 33.2°C | 27.1°C | 21.1°C | 40.4°C | 13.2°C | 115 mm | 69% | 0.2 m/s | 4.9 |
| 1985 | 32.4°C | 26.6°C | 20.8°C | 36.7°C | 16.6°C | 108 mm | 75% | 0.2 m/s | 5.3 |
| 1984 | 31.0°C | 25.9°C | 20.7°C | 33.7°C | 19.0°C | 103 mm | 80% | 0.2 m/s | 5.1 |
| 1983 | 35.1°C | 28.4°C | 21.8°C | 40.8°C | 16.5°C | 72 mm | 68% | 0.2 m/s | — |
| 1982 | 32.0°C | 26.3°C | 20.6°C | 35.7°C | 17.5°C | 78 mm | 76% | 0.2 m/s | — |
| 1981 | 32.8°C | 26.8°C | 20.7°C | 37.1°C | 17.6°C | 106 mm | 71% | 0.2 m/s | — |
Actual recorded August data for each year, 1981–2025 — sourced from NASA POWER.
The average high in August is around 33.6°C with lows near 21.5°C (mean 27.6°C), based on 45 years of NASA POWER data.
August averages 104 mm of rainfall in Columbus, about average for rainfall. The wettest on record was 244 mm in 2008.
The hottest August reached 42.2°C in 2007. The coldest dipped to 13.2°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average August temperatures have risen by about 1.2°C. Daytime highs moved from 32.7°C to 34.2°C and overnight lows from 20.9°C to 21.8°C over the same span.
August is one of the warmer months of the year in Columbus and about average for rainfall, so plan for around 33.6°C daytime highs and 21.5°C at night.
Not quite — August is the 11th coolest month in Columbus, averaging 27.6°C.
For August in Columbus, pack light, breathable clothing and sun protection, with typical highs of 33.6°C and lows of 21.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in August averages 72% — moderately humid.
Average wind speed in August is 0.2 m/s. The windiest August on record averaged 0.3 m/s (1995).
The wettest August on record was 2008 with 244 mm. On average, August sees 104 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Columbus behaves each August, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for August specifically, along with year-by-year records and how the month has changed over the decades.
