August
August · September · June
United States · 1991–2020
August leads for comfortable weather in Columbus: typically 26.6°C by day, 13.1°C at night, with 103 mm of rain. Based on measured 1991–2020 NOAA station history.
August · September · June
July · August · June
May · September · June
The weakest month is January, scoring 5 against August’s 73 — days reach only -0.2°C, 24° below the 24°C the score treats as ideal.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|
| January | -0.2°C | -10.8°C | 64 mm | 10.8 | 9 h 22 | 5 | Strong coverage |
| February | 1°C | -10.5°C | 57 mm | 8.8 | 10 h 28 | 5 | Strong coverage |
| March | 5.4°C | -6.4°C | 78 mm | 9.9 | 11 h 48 | 5 | Strong coverage |
| April | 13.1°C | 0.1°C | 90 mm | 11 | 13 h 19 | 23 | Strong coverage |
| May | 20.5°C | 6.4°C | 93 mm | 11.1 | 14 h 36 | 57 | Strong coverage |
| June | 24.9°C | 11.7°C | 121 mm | 11.4 | 15 h 18 | 71 | Strong coverage |
| July | 27.3°C | 13.9°C | 112 mm | 9.8 | 15 h 01 | 70 | Strong coverage |
| August | 26.6°C | 13.1°C | 103 mm | 9.4 | 13 h 55 | 73 | Strong coverage |
| September | 22.7°C | 9.1°C | 94 mm | 8.6 | 12 h 26 | 72 | Strong coverage |
| October | 15.7°C | 3.5°C | 103 mm | 11.3 | 10 h 58 | 35 | Strong coverage |
| November | 8.8°C | -1.6°C | 80 mm | 10.4 | 9 h 41 | 7 | Strong coverage |
| December | 2.7°C | -6.4°C | 75 mm | 10.9 | 9 h 03 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 19.4°C9 Jan 1998 | -33.9°C6 Jan 1996 | 40 mm13 Jan 2018 | 131 mm1999 · driest 21 mm in 1989 | 40 |
| February | 21.7°C25 Feb 2017 | -33.3°C16 Feb 1987 | 43 mm2 Feb 2008 | 137 mm2008 · driest 9 mm in 1987 | 40 |
| March | 31.1°C31 Mar 1998 | -26.7°C19 Mar 1993 | 48 mm14 Mar 1993 | 153 mm2008 · driest 27 mm in 2021 | 39 |
| April | 33.3°C28 Apr 2009 | -18.3°C6 Apr 2016 | 52 mm4 Apr 2000 | 207 mm2011 · driest 20 mm in 2001 | 41 |
| May | 33.3°C27 May 2020 | -5.6°C13 May 2020 | 54 mm11 May 2000 | 231 mm2000 · driest 22 mm in 2005 | 40 |
| June | 35.6°C28 Jun 1999 | -2.8°C10 Jun 1988 | 109 mm28 Jun 2013 | 288 mm2006 · driest 31 mm in 1988 | 41 |
| July | 37.2°C22 Jul 2011 | 3.9°C3 Jul 2007 | 82 mm8 Jul 2013 | 264 mm2013 · driest 23 mm in 2011 | 41 |
| August | 35.6°C1 Aug 1995 | 0.6°C22 Aug 1988 | 64 mm11 Aug 1998 | 194 mm2024 · driest 30 mm in 2001 | 38 |
| September | 35.0°C2 Sep 1999 | -4.4°C28 Sep 1989 | 113 mm8 Sep 2011 | 234 mm2011 · driest 37 mm in 2016 | 40 |
| October | 29.4°C6 Oct 2007 | -10.0°C31 Oct 1988 | 104 mm1 Oct 2010 | 207 mm2010 · driest 17 mm in 1994 | 40 |
| November | 25.6°C1 Nov 2024 | -23.9°C23 Nov 2018 | 65 mm17 Nov 2006 | 143 mm2018 · driest 28 mm in 2012 | 40 |
| December | 20.6°C8 Dec 1998 | -30.0°C24 Dec 1989 | 50 mm18 Dec 2023 | 152 mm2023 · driest 29 mm in 1989 | 40 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | 2 | 13 |
| February | 0 | 0 | 26 | 2 | 11 |
| March | <1 | 0 | 26 | 2 | 8 |
| April | 2 | <1 | 16 | 3 | 2 |
| May | 8 | 2 | 4 | 3 | <1 |
| June | 16 | 5 | 0 | 4 | 0 |
| July | 24 | 8 | 0 | 4 | 0 |
| August | 22 | 5 | 0 | 3 | 0 |
| September | 10 | 2 | <1 | 3 | 0 |
| October | 2 | 0 | 9 | 3 | <1 |
| November | 0 | 0 | 20 | 2 | 4 |
| December | 0 | 0 | 27 | 2 | 10 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 32% | 5% | 39% | -3.1–3.0°C |
| February | <1% | 31% | 6% | 38% | -1.9–4.4°C |
| March | 3% | 32% | 8% | 43% | 2.5–9.4°C |
| April | 11% | 36% | 9% | 49% | 11.1–16.0°C |
| May | 37% | 36% | 10% | 46% | 17.9–22.9°C |
| June | 54% | 35% | 12% | 44% | 23.3–26.8°C |
| July | 66% | 31% | 11% | 38% | 25.4–28.9°C |
| August | 67% | 29% | 10% | 33% | 24.7–28.1°C |
| September | 52% | 28% | 11% | 34% | 20.5–24.2°C |
| October | 18% | 31% | 9% | 41% | 13.4–18.5°C |
| November | 3% | 35% | 8% | 45% | 6.3–11.3°C |
| December | <1% | 34% | 7% | 45% | -0.7–5.9°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page