September
September · May · June
United States · 1991–2020
September leads for comfortable weather in McKee: typically 27°C by day, 12.7°C at night, with 108 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · June
October · April · May
The weakest month is January, scoring 5 against September’s 72 — days reach only 6.4°C, 18° below the 24°C the score treats as ideal, and nights drop to -5.5°C.
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 | 6.4°C | -5.5°C | 99 mm | 9.5 | 9 h 50 | 5 | Good coverage |
| February | 8.8°C | -4.3°C | 96 mm | 9.2 | 10 h 45 | 5 | Good coverage |
| March | 14.9°C | -0.7°C | 116 mm | 10.1 | 11 h 51 | 24 | Good coverage |
| April | 21.2°C | 4°C | 118 mm | 10 | 13 h 06 | 53 | Good coverage |
| May | 25°C | 9.9°C | 143 mm | 10.7 | 14 h 09 | 66 | Good coverage |
| June | 28.6°C | 14.6°C | 130 mm | 10.4 | 14 h 44 | 64 | Good coverage |
| July | 29.8°C | 17.3°C | 149 mm | 10.1 | 14 h 30 | 54 | Good coverage |
| August | 29.6°C | 16.4°C | 111 mm | 8.1 | 13 h 36 | 64 | Good coverage |
| September | 27°C | 12.7°C | 108 mm | 7.5 | 12 h 23 | 72 | Good coverage |
| October | 21.1°C | 5.6°C | 87 mm | 7.6 | 11 h 10 | 62 | Good coverage |
| November | 14.8°C | -0.4°C | 84 mm | 7.5 | 10 h 06 | 31 | Good coverage |
| December | 8.8°C | -3.2°C | 128 mm | 9.6 | 9 h 36 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.3°C12 Jan 2020 | -22.8°C7 Jan 2014 | 58 mm25 Jan 2010 | 145 mm2006 · driest 45 mm in 2003 | 19 |
| February | 27.8°C21 Feb 2018 | -30.6°C21 Feb 2015 | 84 mm6 Feb 2004 | 260 mm2019 · driest 33 mm in 2013 | 20 |
| March | 31.1°C22 Mar 2012 | -20.0°C6 Mar 2015 | 101 mm1 Mar 2021 | 221 mm2021 · driest 27 mm in 2003 | 20 |
| April | 33.3°C7 Apr 2010 | -8.3°C9 Apr 2007 | 57 mm30 Apr 2005 | 178 mm2015 · driest 30 mm in 2021 | 20 |
| May | 32.8°C28 May 2012 | -2.8°C9 May 2020 | 81 mm4 May 2009 | 320 mm2009 · driest 39 mm in 2006 | 19 |
| June | 40.6°C30 Jun 2012 | 3.3°C2 Jun 2003 | 70 mm21 Jun 2006 | 201 mm2003 · driest 15 mm in 2012 | 19 |
| July | 40.0°C1 Jul 2012 | 8.3°C5 Jul 2014 | 85 mm14 Jul 2015 | 282 mm2015 · driest 55 mm in 2002 | 19 |
| August | 37.2°C24 Aug 2007 | 7.8°C15 Aug 2013 | 93 mm4 Aug 2003 | 252 mm2014 · driest 19 mm in 2008 | 19 |
| September | 36.1°C14 Sep 2019 | 0.6°C25 Sep 2012 | 91 mm18 Sep 2012 | 227 mm2018 · driest 0 mm in 2019 | 19 |
| October | 35.6°C3 Oct 2019 | -5.6°C30 Oct 2008 | 61 mm24 Oct 2007 | 158 mm2014 · driest 30 mm in 2008 | 20 |
| November | 29.4°C2 Nov 2016 | -12.8°C19 Nov 2014 | 50 mm4 Nov 2004 | 158 mm2011 · driest 14 mm in 2009 | 19 |
| December | 24.4°C12 Dec 2007 | -16.7°C21 Dec 2004 | 68 mm6 Dec 2013 | 198 mm2013 · driest 37 mm in 2006 | 18 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 4 | 4 |
| February | <1 | 0 | 23 | 3 | 4 |
| March | 3 | <1 | 18 | 4 | 2 |
| April | 11 | 2 | 8 | 4 | <1 |
| May | 18 | 6 | 1 | 4 | 0 |
| June | 25 | 11 | 0 | 5 | 0 |
| July | 28 | 16 | 0 | 5 | 0 |
| August | 28 | 15 | 0 | 3 | 0 |
| September | 21 | 9 | 0 | 3 | 0 |
| October | 9 | 2 | 5 | 3 | 0 |
| November | 1 | 0 | 18 | 3 | <1 |
| December | 0 | 0 | 22 | 4 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 1% | 30% | 11% | 36% | 3.2–9.1°C |
| February | 4% | 33% | 11% | 41% | 4.1–12.5°C |
| March | 19% | 33% | 13% | 38% | 11.8–17.8°C |
| April | 42% | 33% | 15% | 41% | 18.7–23.1°C |
| May | 55% | 34% | 14% | 46% | 22.9–27.1°C |
| June | 65% | 34% | 17% | 45% | 27.7–29.8°C |
| July | 68% | 33% | 16% | 39% | 28.4–31.0°C |
| August | 74% | 26% | 11% | 29% | 28.0–30.9°C |
| September | 72% | 25% | 12% | 30% | 25.0–29.7°C |
| October | 48% | 25% | 10% | 27% | 18.9–23.6°C |
| November | 16% | 25% | 10% | 31% | 11.2–17.2°C |
| December | 2% | 31% | 15% | 40% | 6.5–11.8°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