July is one of the warmer months of the year in Columbus, with average highs near 33.9°C and lows around 21.9°C (mean 27.9°C). It is a relatively wet time of year, averaging 127 mm of rainfall and 72% relative humidity across the period.
July is one of the warmer months of the year in Columbus. Across 45 years of records, the warmest July in Columbus was 1986 — when the month averaged 30°C — while the coldest was 1994 at 25.2°C. Typical July days reach 33.9°C with nights near 21.9°C. The long-term trend is warming, about 0.2°C per decade.
July is a relatively wet time of year in Columbus, averaging 127 mm of rainfall. The wettest July on record was 1994 with 341 mm, while the driest was 1993 at 56 mm.
Relative humidity in Columbus during July averages 72%. The most humid July was 1989 at 85%, and the least humid was 2000 at 57%.
July receives about 6 kWh/m²/day of solar energy in Columbus. The sunniest July was 2010 at 6.7 kWh/m²/day, and the cloudiest was 1984 at 5.
Average wind speed in Columbus during July is 0.2 m/s. The windiest Julys were 2023, 2024 and 2025, among others at 0.2 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 | 27.5°C | 27.8°C | 27.7°C | 28.2°C | 28.6°C | +1.1°C |
| Avg High | 33.4°C | 33.5°C | 33.8°C | 34.2°C | 34.8°C | +1.4°C |
| Avg Low | 21.5°C | 22.1°C | 21.6°C | 22.2°C | 22.4°C | +0.9°C |
| Avg Rain | 140 mm | 129 mm | 123 mm | 119 mm | 120 mm | -21 mm |
July temperatures in Columbus have risen by about 1.1°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 14.5°C (2009) to a record high of 41.2°C (2000).
Rainfall in July is a relatively wet time of year, averaging 127 mm, with a wettest year of 341 mm.
A good time to visit Columbus
July is a good time to visit Columbus, with days averaging 33.9°C and nights around 21.9°C (mean 27.9°C, warmer than Columbus's yearly average) and higher rainfall. May and September are marginally more temperate, but July still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 36.5°C | 29.7°C | 22.9°C | 40.4°C | 20.9°C | 75 mm | 67% | 0.2 m/s | 6.5 |
| 2024 | 35.3°C | 29.0°C | 22.8°C | 39.9°C | 19.2°C | 181 mm | 72% | 0.2 m/s | 5.7 |
| 2023 | 35.1°C | 28.6°C | 22.1°C | 39.0°C | 18.2°C | 93 mm | 71% | 0.2 m/s | 6.3 |
| 2022 | 34.6°C | 28.7°C | 22.7°C | 37.7°C | 20.9°C | 128 mm | 72% | 0.2 m/s | 5.9 |
| 2021 | 32.8°C | 27.2°C | 21.6°C | 39.5°C | 17.3°C | 144 mm | 77% | 0.2 m/s | 5.9 |
| 2020 | 34.4°C | 28.3°C | 22.2°C | 39.3°C | 19.4°C | 98 mm | 71% | 0.2 m/s | 6.4 |
| 2019 | 35.4°C | 28.7°C | 22.0°C | 38.5°C | 17.3°C | 92 mm | 66% | 0.2 m/s | 6.3 |
| 2018 | 33.6°C | 27.8°C | 22.0°C | 37.9°C | 19.4°C | 145 mm | 74% | 0.2 m/s | 6.2 |
| 2017 | 33.5°C | 27.7°C | 21.9°C | 36.9°C | 17.2°C | 129 mm | 76% | 0.2 m/s | 6.4 |
| 2016 | 35.9°C | 29.3°C | 22.8°C | 38.7°C | 20.9°C | 73 mm | 67% | 0.2 m/s | 6.4 |
| 2015 | 35.1°C | 28.9°C | 22.6°C | 39.5°C | 19.9°C | 102 mm | 71% | 0.2 m/s | 6.2 |
| 2014 | 32.6°C | 26.5°C | 20.5°C | 36.6°C | 15.1°C | 94 mm | 73% | 0.2 m/s | 6 |
| 2013 | 30.3°C | 25.9°C | 21.5°C | 35.3°C | 19.4°C | 243 mm | 84% | 0.2 m/s | 5.1 |
| 2012 | 35.5°C | 29.1°C | 22.7°C | 40.4°C | 19.5°C | 109 mm | 68% | 0.2 m/s | 6.3 |
| 2011 | 34.4°C | 28.6°C | 22.8°C | 38.7°C | 19.9°C | 134 mm | 73% | 0.2 m/s | 5.8 |
| 2010 | 36.1°C | 29.6°C | 23.1°C | 40.9°C | 17.8°C | 71 mm | 68% | 0.2 m/s | 6.7 |
| 2009 | 31.6°C | 26.0°C | 20.3°C | 35.0°C | 14.5°C | 116 mm | 76% | 0.2 m/s | 6 |
| 2008 | 34.8°C | 28.0°C | 21.2°C | 38.9°C | 15.5°C | 100 mm | 67% | 0.2 m/s | 6.2 |
| 2007 | 33.2°C | 27.3°C | 21.4°C | 36.3°C | 17.6°C | 116 mm | 70% | 0.2 m/s | 5.7 |
| 2006 | 35.8°C | 29.0°C | 22.1°C | 39.2°C | 17.7°C | 96 mm | 61% | 0.2 m/s | 5.8 |
| 2005 | 32.7°C | 27.7°C | 22.7°C | 37.9°C | 20.1°C | 250 mm | 80% | 0.2 m/s | 5.4 |
| 2004 | 33.8°C | 27.7°C | 21.5°C | 39.4°C | 18.2°C | 102 mm | 72% | 0.2 m/s | 6.3 |
| 2003 | 31.0°C | 26.2°C | 21.3°C | 33.1°C | 18.8°C | 193 mm | 83% | 0.2 m/s | 5.6 |
| 2002 | 34.9°C | 28.5°C | 22.0°C | 40.1°C | 21.1°C | 117 mm | 70% | 0.2 m/s | 6.1 |
| 2001 | 33.8°C | 27.4°C | 21.0°C | 37.4°C | 16.4°C | 62 mm | 70% | 0.2 m/s | 6.1 |
| 2000 | 36.6°C | 29.3°C | 22.0°C | 41.2°C | 19.0°C | 77 mm | 57% | 0.2 m/s | 6.2 |
| 1999 | 33.4°C | 27.4°C | 21.5°C | 41.0°C | 19.4°C | 85 mm | 77% | 0.2 m/s | 6.1 |
| 1998 | 34.8°C | 28.9°C | 23.1°C | 38.5°C | 20.4°C | 117 mm | 72% | 0.2 m/s | 5.8 |
| 1997 | 32.6°C | 27.4°C | 22.2°C | 38.7°C | 18.5°C | 106 mm | 78% | 0.2 m/s | 6 |
| 1996 | 34.4°C | 28.1°C | 21.7°C | 39.6°C | 18.1°C | 109 mm | 68% | 0.2 m/s | 5.7 |
| 1995 | 35.5°C | 28.9°C | 22.3°C | 40.2°C | 18.8°C | 93 mm | 66% | 0.2 m/s | 6.1 |
| 1994 ❄️ 🌧️ | 29.5°C | 25.2°C | 20.9°C | 32.5°C | 16.5°C | 341 mm | 85% | 0.2 m/s | 5.2 |
| 1993 | 36.9°C | 29.9°C | 22.9°C | 40.8°C | 18.0°C | 56 mm | 64% | 0.2 m/s | 6.4 |
| 1992 | 33.3°C | 27.8°C | 22.4°C | 39.7°C | 20.4°C | 135 mm | 75% | 0.2 m/s | 5.7 |
| 1991 | 31.1°C | 26.7°C | 22.3°C | 34.6°C | 20.3°C | 145 mm | 83% | 0.2 m/s | 5.6 |
| 1990 | 33.9°C | 27.7°C | 21.5°C | 38.2°C | 17.7°C | 105 mm | 69% | 0.2 m/s | 6.1 |
| 1989 | 29.8°C | 25.6°C | 21.4°C | 33.8°C | 19.3°C | 215 mm | 85% | 0.2 m/s | 5.5 |
| 1988 | 33.0°C | 27.0°C | 21.0°C | 37.9°C | 16.5°C | 158 mm | 72% | 0.2 m/s | 5.6 |
| 1987 | 33.7°C | 27.4°C | 21.1°C | 39.0°C | 16.2°C | 86 mm | 72% | 0.2 m/s | 6.4 |
| 1986 🔥 | 37.2°C | 30.0°C | 22.7°C | 40.6°C | 18.1°C | 91 mm | 58% | 0.2 m/s | 6.4 |
| 1985 | 32.7°C | 26.9°C | 21.2°C | 36.8°C | 18.0°C | 175 mm | 74% | 0.2 m/s | 5.3 |
| 1984 | 32.0°C | 26.6°C | 21.2°C | 38.0°C | 18.9°C | 204 mm | 76% | 0.2 m/s | 5 |
| 1983 | 34.2°C | 27.7°C | 21.3°C | 38.2°C | 15.3°C | 66 mm | 71% | 0.2 m/s | — |
| 1982 | 31.6°C | 26.6°C | 21.5°C | 36.4°C | 19.9°C | 167 mm | 80% | 0.2 m/s | — |
| 1981 | 36.8°C | 29.6°C | 22.3°C | 40.6°C | 18.4°C | 103 mm | 62% | 0.2 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 33.9°C with lows near 21.9°C (mean 27.9°C), based on 45 years of NASA POWER data.
July averages 127 mm of rainfall in Columbus, a relatively wet time of year. The wettest on record was 341 mm in 1994.
The hottest July reached 41.2°C in 2000. The coldest dipped to 14.5°C in 2009.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.1°C. Daytime highs moved from 33.5°C to 34.9°C and overnight lows from 21.5°C to 22.4°C over the same span.
July is one of the warmer months of the year in Columbus and a relatively wet time of year, so plan for around 33.9°C daytime highs and 21.9°C at night.
Not quite — July is the 12th coolest month in Columbus, averaging 27.9°C.
For July in Columbus, pack light, breathable clothing and sun protection, with typical highs of 33.9°C and lows of 21.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 72% — moderately humid.
Average wind speed in July is 0.2 m/s. The windiest July on record averaged 0.2 m/s (1981).
The wettest July on record was 1994 with 341 mm. On average, July sees 127 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 July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
