September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Dill: typically 26.5°C by day, 13.3°C at night, with 116 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · June · July
October · April · May
The weakest month is January, scoring 5 against September’s 74 — days reach only 7.7°C, 16° below the 24°C the score treats as ideal, and nights drop to -3.9°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 | 7.7°C | -3.9°C | 132 mm | 9.6 | 10 h | 5 | Good coverage |
| February | 9.9°C | -2°C | 147 mm | 10.2 | 10 h 50 | 5 | Good coverage |
| March | 15°C | 1.8°C | 126 mm | 10 | 11 h 52 | 28 | Good coverage |
| April | 20.3°C | 5.9°C | 141 mm | 9 | 13 h 02 | 51 | Good coverage |
| May | 24.2°C | 10.9°C | 126 mm | 10.8 | 14 h 01 | 72 | Good coverage |
| June | 27.6°C | 14.9°C | 117 mm | 9.4 | 14 h 33 | 71 | Good coverage |
| July | 29.1°C | 16.8°C | 155 mm | 11.6 | 14 h 20 | 55 | Good coverage |
| August | 29.2°C | 16.6°C | 109 mm | 9.3 | 13 h 30 | 64 | Good coverage |
| September | 26.5°C | 13.3°C | 116 mm | 7.3 | 12 h 21 | 74 | Good coverage |
| October | 21.3°C | 6.8°C | 93 mm | 7 | 11 h 13 | 65 | Good coverage |
| November | 15.4°C | 1.4°C | 114 mm | 7.9 | 10 h 14 | 32 | Good coverage |
| December | 9.7°C | -1.7°C | 140 mm | 9.5 | 9 h 46 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.3°C2 Jan 2022 | -23.9°C18 Jan 2003 | 127 mm4 Jan 2020 | 374 mm2020 · driest 29 mm in 2011 | 27 |
| February | 26.7°C24 Feb 2023 | -22.8°C19 Feb 2015 | 152 mm23 Feb 2019 | 286 mm2003 · driest 35 mm in 2026 | 27 |
| March | 29.4°C23 Mar 2026 | -13.9°C2 Mar 2005 | 139 mm17 Mar 2002 | 355 mm2002 · driest 28 mm in 2007 | 27 |
| April | 30.0°C11 Apr 2001 | -9.4°C8 Apr 2007 | 90 mm13 Apr 2020 | 244 mm2011 · driest 10 mm in 2012 | 27 |
| May | 31.7°C28 May 2006 | -1.7°C4 May 2004 | 103 mm9 May 2024 | 293 mm2003 · driest 25 mm in 2005 | 27 |
| June | 40.0°C30 Jun 2012 | 5.0°C18 Jun 2012 | 118 mm30 Jun 2014 | 231 mm2004 · driest 35 mm in 2012 | 27 |
| July | 38.9°C1 Jul 2012 | 4.4°C23 Jul 2004 | 88 mm30 Jul 2001 | 228 mm2015 · driest 31 mm in 2010 | 26 |
| August | 37.2°C24 Aug 2007 | 4.4°C17 Aug 2004 | 90 mm17 Aug 2002 | 274 mm2021 · driest 27 mm in 2011 | 26 |
| September | 35.0°C4 Sep 2011 | -0.6°C26 Sep 2001 | 131 mm17 Sep 2004 | 248 mm2018 · driest 6 mm in 2008 | 26 |
| October | 33.3°C3 Oct 2019 | -6.1°C26 Oct 2013 | 206 mm7 Oct 2021 | 298 mm2021 · driest 9 mm in 2000 | 27 |
| November | 28.3°C2 Nov 2016 | -13.3°C22 Nov 2008 | 99 mm28 Nov 2011 | 203 mm2011 · driest 13 mm in 2021 | 27 |
| December | 23.3°C12 Dec 2007 | -18.3°C24 Dec 2022 | 78 mm10 Dec 2008 | 248 mm2015 · driest 49 mm in 2007 | 27 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 21 | 4 | 1 |
| February | 0 | 0 | 18 | 4 | 1 |
| March | 2 | 0 | 12 | 4 | <1 |
| April | 7 | 0 | 4 | 4 | <1 |
| May | 15 | 1 | <1 | 4 | 0 |
| June | 24 | 7 | 0 | 3 | 0 |
| July | 27 | 12 | 0 | 4 | 0 |
| August | 27 | 13 | 0 | 4 | 0 |
| September | 20 | 5 | 0 | 3 | 0 |
| October | 7 | <1 | 4 | 3 | 0 |
| November | <1 | 0 | 12 | 3 | <1 |
| December | 0 | 0 | 17 | 4 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 31% | 13% | 39% | 4.5–10.9°C |
| February | 3% | 37% | 17% | 46% | 6.2–13.6°C |
| March | 18% | 31% | 13% | 37% | 12.3–18.5°C |
| April | 44% | 30% | 15% | 36% | 18.2–22.9°C |
| May | 55% | 35% | 13% | 50% | 22.5–25.9°C |
| June | 69% | 31% | 12% | 36% | 26.5–28.9°C |
| July | 62% | 38% | 17% | 51% | 27.3–30.6°C |
| August | 69% | 31% | 13% | 30% | 27.4–31.0°C |
| September | 72% | 25% | 11% | 24% | 24.6–28.3°C |
| October | 55% | 21% | 10% | 21% | 19.5–22.8°C |
| November | 20% | 25% | 12% | 32% | 12.4–18.4°C |
| December | 3% | 31% | 15% | 34% | 6.8–13.2°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