September
September · May · October
United States · 1991–2020
September leads for comfortable weather in West Frankfort: typically 27°C by day, 13.8°C at night, with 76 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 81 — days reach only 4.9°C, 19° 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 | 4.9°C | -4°C | 79 mm | 5.7 | 9 h 48 | 5 | Good coverage |
| February | 7.9°C | -2°C | 69 mm | 4.3 | 10 h 44 | 10 | Good coverage |
| March | 13.3°C | 2.1°C | 87 mm | 6.6 | 11 h 50 | 31 | Good coverage |
| April | 19.8°C | 7.7°C | 124 mm | 7.2 | 13 h 07 | 57 | Good coverage |
| May | 24.6°C | 12.8°C | 116 mm | 7.4 | 14 h 12 | 79 | Good coverage |
| June | 29.1°C | 17.5°C | 124 mm | 6.3 | 14 h 46 | 63 | Good coverage |
| July | 31.5°C | 19.8°C | 85 mm | 4.9 | 14 h 33 | 58 | Good coverage |
| August | 31.4°C | 18.8°C | 66 mm | 4.6 | 13 h 37 | 63 | Good coverage |
| September | 27°C | 13.8°C | 76 mm | 4.4 | 12 h 23 | 81 | Good coverage |
| October | 20.6°C | 7.9°C | 90 mm | 4.9 | 11 h 09 | 67 | Good coverage |
| November | 13.3°C | 3°C | 88 mm | 5.5 | 10 h 04 | 33 | Good coverage |
| December | 6.8°C | -2.5°C | 78 mm | 5.2 | 9 h 33 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.7°C17 Jan 1990 | -30.0°C17 Jan 1977 | 102 mm9 Jan 1998 | 155 mm1999 · driest 20 mm in 2008 | 23 |
| February | 24.4°C26 Feb 1996 | -19.4°C6 Feb 1978 | 68 mm20 Feb 2003 | 168 mm1989 · driest 0 mm in 2004 | 23 |
| March | 29.4°C26 Mar 2007 | -15.0°C4 Mar 1978 | 86 mm28 Mar 1977 | 201 mm1989 · driest 28 mm in 2001 | 25 |
| April | 32.8°C28 Apr 1989 | -6.7°C7 Apr 1990 | 223 mm29 Apr 1996 | 354 mm1996 · driest 42 mm in 1992 | 24 |
| May | 33.9°C17 May 2001 | 0.6°C2 May 1978 | 111 mm18 May 1995 | 311 mm1995 · driest 3 mm in 2005 | 24 |
| June | 39.4°C26 Jun 1988 | 5.6°C1 Jun 2003 | 151 mm19 Jun 2000 | 281 mm1970 · driest 0 mm in 2008 | 24 |
| July | 39.4°C31 Jul 1999 | 12.2°C7 Jul 2006 | 108 mm20 Jul 1988 | 191 mm2006 · driest 9 mm in 2002 | 23 |
| August | 40.0°C16 Aug 2007 | 8.9°C8 Aug 1989 | 72 mm30 Aug 1978 | 159 mm2005 · driest 3 mm in 1996 | 22 |
| September | 37.8°C1 Sep 1995 | 1.1°C24 Sep 1995 | 64 mm16 Sep 1996 | 225 mm1993 · driest 5 mm in 2004 | 22 |
| October | 32.8°C14 Oct 1989 | -6.1°C29 Oct 1976 | 92 mm18 Oct 2007 | 243 mm2001 · driest 11 mm in 2000 | 24 |
| November | 27.8°C2 Nov 2000 | -13.3°C30 Nov 1976 | 101 mm20 Nov 1991 | 176 mm1994 · driest 14 mm in 1995 | 22 |
| December | 23.9°C28 Dec 2008 | -26.1°C22 Dec 1989 | 74 mm17 Dec 2001 | 134 mm2001 · driest 3 mm in 1995 | 23 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 22 | 3 |
| February | 0 | 0 | 18 | 2 |
| March | 2 | 0 | 11 | 3 |
| April | 7 | <1 | 2 | 4 |
| May | 16 | 4 | 0 | 4 |
| June | 25 | 15 | 0 | 3 |
| July | 29 | 23 | 0 | 2 |
| August | 30 | 21 | 0 | 2 |
| September | 20 | 9 | 0 | 2 |
| October | 8 | 1 | 2 | 3 |
| November | <1 | 0 | 11 | 3 |
| December | 0 | 0 | 20 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 21% | 8% | 21% | 2.0–9.6°C |
| February | 3% | 22% | 9% | 21% | 3.7–10.5°C |
| March | 15% | 27% | 12% | 31% | 10.1–15.9°C |
| April | 38% | 28% | 11% | 32% | 17.3–22.4°C |
| May | 63% | 27% | 12% | 31% | 22.9–26.6°C |
| June | 77% | 24% | 11% | 25% | 27.7–30.5°C |
| July | 83% | 20% | 9% | 19% | 30.1–33.1°C |
| August | 85% | 19% | 8% | 16% | 29.2–33.1°C |
| September | 81% | 17% | 8% | 11% | 25.4–29.9°C |
| October | 45% | 19% | 8% | 18% | 18.1–22.2°C |
| November | 14% | 22% | 11% | 21% | 9.9–17.4°C |
| December | 1% | 22% | 10% | 22% | 3.8–9.0°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