September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Okolona: typically 27.2°C by day, 15.3°C at night, with 98 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
August · July · June
October · April · September
The weakest month is January, scoring 5 against September’s 77 — days reach only 5.7°C, 18° 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 | 5.7°C | -3.4°C | 98 mm | 8.9 | 9 h 47 | 5 | Good coverage |
| February | 8.2°C | -1.8°C | 98 mm | 8.9 | 10 h 43 | 5 | Good coverage |
| March | 13.7°C | 2.6°C | 130 mm | 10 | 11 h 50 | 24 | Good coverage |
| April | 19.9°C | 8°C | 143 mm | 10.5 | 13 h 08 | 52 | Good coverage |
| May | 24.6°C | 13.4°C | 148 mm | 11.1 | 14 h 13 | 72 | Good coverage |
| June | 28.8°C | 17.9°C | 127 mm | 9.6 | 14 h 48 | 60 | Good coverage |
| July | 30.5°C | 19.8°C | 121 mm | 9.3 | 14 h 34 | 52 | Good coverage |
| August | 30.2°C | 19.2°C | 86 mm | 7.2 | 13 h 38 | 61 | Good coverage |
| September | 27.2°C | 15.3°C | 98 mm | 6.4 | 12 h 23 | 77 | Good coverage |
| October | 20.6°C | 8.9°C | 113 mm | 6.7 | 11 h 08 | 64 | Good coverage |
| November | 13.8°C | 3°C | 99 mm | 8 | 10 h 03 | 31 | Good coverage |
| December | 7.6°C | -1.2°C | 120 mm | 10.2 | 9 h 32 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.1°C30 Jan 2013 | -20.6°C31 Jan 2004 | 103 mm3 Jan 2023 | 181 mm2024 · driest 29 mm in 2016 | 30 |
| February | 26.7°C24 Feb 2017 | -22.8°C20 Feb 2015 | 95 mm15 Feb 2025 | 243 mm2018 · driest 37 mm in 2002 | 30 |
| March | 31.1°C23 Mar 2026 | -15.6°C6 Mar 2015 | 266 mm1 Mar 1997 | 445 mm1997 · driest 38 mm in 2010 | 30 |
| April | 31.7°C30 Apr 2007 | -5.0°C7 Apr 2007 | 159 mm3 Apr 2015 | 397 mm2011 · driest 28 mm in 2001 | 30 |
| May | 33.9°C30 May 2011 | -1.1°C9 May 2020 | 88 mm2 May 2010 | 271 mm2004 · driest 48 mm in 2015 | 30 |
| June | 40.0°C29 Jun 2012 | 7.8°C6 Jun 1998 | 117 mm28 Jun 1999 | 241 mm2019 · driest 27 mm in 2012 | 30 |
| July | 40.0°C30 Jul 1999 | 11.7°C29 Jul 2014 | 84 mm20 Jul 2018 | 243 mm1998 · driest 13 mm in 1999 | 29 |
| August | 38.3°C16 Aug 2007 | 10.6°C27 Aug 2025 | 99 mm16 Aug 2018 | 179 mm2005 · driest 13 mm in 2008 | 29 |
| September | 38.3°C3 Sep 2011 | 3.9°C26 Sep 2001 | 97 mm20 Sep 2009 | 265 mm2018 · driest 2 mm in 2019 | 29 |
| October | 35.0°C3 Oct 2019 | -2.2°C28 Oct 2001 | 129 mm18 Oct 2004 | 232 mm2007 · driest 13 mm in 2024 | 29 |
| November | 30.0°C1 Nov 2016 | -10.6°C13 Nov 2019 | 85 mm30 Nov 2019 | 239 mm2011 · driest 28 mm in 2012 | 29 |
| December | 23.9°C29 Dec 2025 | -21.7°C23 Dec 2022 | 69 mm5 Dec 2011 | 194 mm2002 · driest 45 mm in 2010 | 29 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 23 | 3 | 4 |
| February | <1 | 0 | 19 | 3 | 4 |
| March | 2 | 0 | 12 | 4 | 2 |
| April | 7 | <1 | 2 | 4 | <1 |
| May | 16 | 5 | 0 | 5 | 0 |
| June | 27 | 14 | 0 | 4 | 0 |
| July | 30 | 20 | 0 | 4 | 0 |
| August | 30 | 18 | 0 | 3 | 0 |
| September | 21 | 10 | 0 | 3 | 0 |
| October | 9 | 1 | 1 | 3 | 0 |
| November | 1 | 0 | 9 | 3 | <1 |
| December | 0 | 0 | 20 | 4 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 30% | 10% | 33% | 2.7–8.9°C |
| February | 4% | 31% | 11% | 39% | 3.4–12.5°C |
| March | 15% | 33% | 14% | 41% | 10.9–17.6°C |
| April | 37% | 35% | 14% | 49% | 17.8–22.6°C |
| May | 55% | 36% | 16% | 49% | 22.7–26.4°C |
| June | 68% | 31% | 14% | 38% | 27.3–30.0°C |
| July | 70% | 30% | 13% | 33% | 29.0–32.5°C |
| August | 77% | 23% | 10% | 23% | 28.8–31.6°C |
| September | 76% | 21% | 10% | 20% | 24.9–29.5°C |
| October | 48% | 22% | 10% | 24% | 18.9–23.0°C |
| November | 16% | 26% | 10% | 28% | 10.2–16.6°C |
| December | 2% | 33% | 12% | 44% | 5.5–10.6°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