September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Highfill: typically 27.8°C by day, 14.5°C at night, with 90 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
July · August · June
October · April · November
The weakest month is January, scoring 9 against September’s 77 — days reach only 8.4°C, 16° below the 24°C the score treats as ideal, and nights drop to -3.6°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 | 8.4°C | -3.6°C | 64 mm | 5.3 | 9 h 56 | 9 | Good coverage |
| February | 10.4°C | -1.9°C | 59 mm | 5.9 | 10 h 48 | 19 | Good coverage |
| March | 16°C | 3.1°C | 96 mm | 8.3 | 11 h 51 | 39 | Good coverage |
| April | 20.9°C | 7.6°C | 123 mm | 8.5 | 13 h 04 | 59 | Good coverage |
| May | 24.8°C | 12.5°C | 157 mm | 9.5 | 14 h 04 | 70 | Good coverage |
| June | 29.5°C | 17.6°C | 116 mm | 7.4 | 14 h 37 | 62 | Good coverage |
| July | 32°C | 19.7°C | 89 mm | 6.7 | 14 h 24 | 54 | Good coverage |
| August | 32°C | 19.1°C | 86 mm | 6.1 | 13 h 32 | 56 | Good coverage |
| September | 27.8°C | 14.5°C | 90 mm | 5.4 | 12 h 22 | 77 | Good coverage |
| October | 21.4°C | 8.1°C | 102 mm | 7.5 | 11 h 12 | 65 | Good coverage |
| November | 15.5°C | 2.7°C | 78 mm | 5.8 | 10 h 11 | 41 | Good coverage |
| December | 9.4°C | -2.2°C | 76 mm | 5.9 | 9 h 42 | 12 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.9°C2 Jan 2023 | -21.0°C15 Jan 2024 | 77 mm10 Jan 2020 | 174 mm2005 · driest 4 mm in 2003 | 27 |
| February | 27.8°C23 Feb 2017 | -29.3°C10 Feb 2011 | 63 mm16 Feb 2008 | 199 mm2018 · driest 6 mm in 2026 | 27 |
| March | 32.8°C21 Mar 2026 | -18.3°C4 Mar 2002 | 115 mm18 Mar 2008 | 225 mm2008 · driest 20 mm in 2001 | 27 |
| April | 33.9°C17 Apr 2006 | -9.3°C8 Apr 2007 | 133 mm29 Apr 2017 | 372 mm2017 · driest 40 mm in 2023 | 27 |
| May | 32.8°C28 May 2018 | -0.6°C1 May 2005 | 131 mm9 May 2013 | 312 mm2015 · driest 36 mm in 2012 | 28 |
| June | 38.9°C25 Jun 2012 | 6.1°C7 Jun 2000 | 93 mm23 Jun 2019 | 339 mm2000 · driest 22 mm in 2011 | 28 |
| July | 41.7°C20 Jul 2022 | 10.0°C8 Jul 2006 | 116 mm17 Jul 2025 | 246 mm2004 · driest 12 mm in 2012 | 28 |
| August | 42.2°C5 Aug 2011 | 7.8°C12 Aug 2004 | 77 mm13 Aug 2002 | 212 mm2019 · driest 0 mm in 2000 | 27 |
| September | 40.6°C2 Sep 2000 | 0.6°C26 Sep 2000 | 89 mm20 Sep 2025 | 227 mm2025 · driest 2 mm in 2024 | 27 |
| October | 33.9°C4 Oct 2024 | -6.1°C9 Oct 2000 | 88 mm8 Oct 2009 | 251 mm2009 · driest 26 mm in 2024 | 27 |
| November | 28.3°C16 Nov 2016 | -11.6°C12 Nov 2019 | 91 mm8 Nov 2011 | 191 mm2015 · driest 14 mm in 2016 | 27 |
| December | 26.7°C27 Dec 2025 | -19.9°C22 Dec 2022 | 134 mm27 Dec 2015 | 321 mm2015 · driest 2 mm in 2025 | 27 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 24 | 2 |
| February | <1 | 0 | 19 | 2 |
| March | 2 | <1 | 10 | 3 |
| April | 7 | <1 | 3 | 3 |
| May | 17 | 3 | <1 | 5 |
| June | 28 | 15 | 0 | 4 |
| July | 30 | 24 | 0 | 3 |
| August | 30 | 23 | 0 | 3 |
| September | 23 | 10 | 0 | 3 |
| October | 9 | 1 | 2 | 3 |
| November | 1 | 0 | 11 | 3 |
| December | 0 | 0 | 22 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 4% | 17% | 6% | 14% | 6.1–11.2°C |
| February | 12% | 21% | 6% | 19% | 7.2–15.3°C |
| March | 28% | 26% | 10% | 31% | 13.8–20.1°C |
| April | 50% | 29% | 12% | 33% | 19.1–22.8°C |
| May | 61% | 32% | 17% | 39% | 23.0–26.2°C |
| June | 74% | 26% | 13% | 29% | 27.6–31.8°C |
| July | 79% | 21% | 10% | 18% | 30.2–34.5°C |
| August | 81% | 19% | 9% | 17% | 29.8–34.4°C |
| September | 80% | 18% | 9% | 14% | 25.6–30.3°C |
| October | 54% | 23% | 10% | 26% | 19.5–23.2°C |
| November | 25% | 19% | 9% | 14% | 12.9–18.0°C |
| December | 4% | 19% | 8% | 17% | 7.5–12.4°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