September
September · May · August
United States · 1991–2020
September leads for comfortable weather in Carthage: typically 26.6°C by day, 12.6°C at night, with 93 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · August
August · July · June
October · April · May
The weakest month is January, scoring 5 against September’s 76 — days reach only 1.3°C, 23° 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 | 1.3°C | -8.9°C | 41 mm | 5.6 | 9 h 35 | 5 | Good coverage |
| February | 4.1°C | -6.4°C | 51 mm | 5.7 | 10 h 36 | 5 | Strong coverage |
| March | 10.8°C | -0.8°C | 65 mm | 7 | 11 h 49 | 20 | Strong coverage |
| April | 17.9°C | 4.9°C | 104 mm | 9.1 | 13 h 13 | 46 | Strong coverage |
| May | 23.5°C | 11.2°C | 132 mm | 9.8 | 14 h 24 | 72 | Strong coverage |
| June | 28.6°C | 16.6°C | 130 mm | 8.8 | 15 h 02 | 63 | Strong coverage |
| July | 30.7°C | 18.4°C | 108 mm | 7.7 | 14 h 47 | 57 | Strong coverage |
| August | 29.9°C | 17.1°C | 103 mm | 6.4 | 13 h 46 | 64 | Strong coverage |
| September | 26.6°C | 12.6°C | 93 mm | 5.9 | 12 h 25 | 76 | Strong coverage |
| October | 19.2°C | 6.1°C | 80 mm | 6.7 | 11 h 03 | 59 | Strong coverage |
| November | 11.3°C | -0.1°C | 63 mm | 6.5 | 9 h 53 | 24 | Strong coverage |
| December | 4.2°C | -5.5°C | 48 mm | 5.8 | 9 h 18 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 20.0°C8 Jan 2008 | -30.0°C5 Jan 1999 | 42 mm29 Jan 2001 | 96 mm2019 · driest 8 mm in 2025 | 30 |
| February | 26.7°C28 Feb 2024 | -28.9°C3 Feb 1996 | 91 mm21 Feb 1997 | 137 mm1997 · driest 0 mm in 2026 | 31 |
| March | 33.3°C27 Mar 2026 | -21.7°C12 Mar 1998 | 47 mm30 Mar 2019 | 185 mm2009 · driest 19 mm in 2021 | 32 |
| April | 31.7°C14 Apr 2006 | -14.4°C3 Apr 2018 | 124 mm18 Apr 2013 | 233 mm2013 · driest 28 mm in 2018 | 32 |
| May | 36.1°C28 May 2018 | -1.7°C3 May 2005 | 80 mm17 May 1995 | 361 mm2019 · driest 16 mm in 2006 | 32 |
| June | 37.8°C29 Jun 2012 | 6.7°C3 Jun 2003 | 109 mm15 Jun 2011 | 300 mm2010 · driest 15 mm in 2016 | 32 |
| July | 40.6°C25 Jul 2005 | 8.9°C5 Jul 1997 | 107 mm21 Jul 1996 | 266 mm2010 · driest 24 mm in 2007 | 32 |
| August | 40.0°C16 Aug 2007 | 6.1°C20 Aug 2001 | 135 mm23 Aug 2001 | 217 mm2009 · driest 0 mm in 2013 | 31 |
| September | 40.0°C3 Sep 2011 | -1.7°C23 Sep 1995 | 120 mm10 Sep 2014 | 190 mm2018 · driest 10 mm in 2002 | 31 |
| October | 35.6°C4 Oct 2006 | -7.8°C27 Oct 1997 | 52 mm23 Oct 2009 | 181 mm2009 · driest 5 mm in 2022 | 31 |
| November | 27.8°C2 Nov 2000 | -14.4°C12 Nov 2019 | 50 mm18 Nov 2015 | 152 mm2011 · driest 0 mm in 2021 | 30 |
| December | 23.9°C16 Dec 2021 | -23.3°C30 Dec 1998 | 71 mm10 Dec 2003 | 159 mm2015 · driest 7 mm in 2019 | 31 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 28 | 1 | 4 |
| February | 0 | 0 | 24 | 1 | 4 |
| March | 1 | 0 | 19 | 2 | 1 |
| April | 5 | 1 | 6 | 3 | <1 |
| May | 14 | 4 | <1 | 4 | 0 |
| June | 25 | 13 | 0 | 4 | 0 |
| July | 29 | 19 | 0 | 3 | 0 |
| August | 29 | 16 | 0 | 3 | 0 |
| September | 19 | 8 | <1 | 3 | 0 |
| October | 6 | 1 | 4 | 3 | <1 |
| November | <1 | 0 | 17 | 2 | <1 |
| December | 0 | 0 | 26 | 1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 16% | 3% | 11% | -1.2–3.4°C |
| February | 2% | 18% | 4% | 14% | -1.0–8.1°C |
| March | 11% | 24% | 7% | 27% | 7.8–15.1°C |
| April | 28% | 29% | 11% | 34% | 14.9–21.0°C |
| May | 53% | 30% | 11% | 37% | 21.3–25.7°C |
| June | 70% | 27% | 11% | 31% | 27.0–30.6°C |
| July | 75% | 25% | 11% | 25% | 28.9–32.7°C |
| August | 78% | 21% | 9% | 17% | 27.9–31.6°C |
| September | 77% | 21% | 10% | 18% | 24.6–28.6°C |
| October | 41% | 21% | 8% | 21% | 17.2–22.3°C |
| November | 10% | 20% | 6% | 17% | 7.1–14.9°C |
| December | <1% | 18% | 5% | 15% | 1.7–7.9°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