September
September · October · May
United States · 1991–2020
September leads for comfortable weather in Cherry Valley: typically 28.6°C by day, 17°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.
September · October · May
June · August · September
October · April · November
The weakest month is January, scoring 9 against September’s 75 — days reach only 8.6°C, 15° below the 24°C the score treats as ideal, and nights drop to -2.6°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 | 8.6°C | -2.6°C | 78 mm | 5.9 | 10 h 00 | 9 | Good coverage |
| February | 10.4°C | -1°C | 125 mm | 7.4 | 10 h 51 | 10 | Good coverage |
| March | 16.2°C | 4.3°C | 126 mm | 8 | 11 h 52 | 38 | Good coverage |
| April | 22°C | 9.6°C | 128 mm | 7.6 | 13 h 02 | 67 | Good coverage |
| May | 26°C | 15.1°C | 179 mm | 9.2 | 14 h 00 | 68 | Good coverage |
| June | 30.3°C | 19.4°C | 81 mm | 6.2 | 14 h 32 | 62 | Good coverage |
| July | 31.4°C | 21.3°C | 108 mm | 7 | 14 h 20 | 51 | Good coverage |
| August | 31.4°C | 20.8°C | 89 mm | 5.3 | 13 h 29 | 55 | Good coverage |
| September | 28.6°C | 17°C | 72 mm | 4.9 | 12 h 21 | 75 | Good coverage |
| October | 22.6°C | 10°C | 106 mm | 6.2 | 11 h 14 | 74 | Good coverage |
| November | 16.2°C | 4.6°C | 123 mm | 7.5 | 10 h 15 | 39 | Good coverage |
| December | 10.1°C | -0.3°C | 112 mm | 6.7 | 9 h 47 | 13 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 23.3°C24 Jan 2002 | -16.7°C7 Jan 2014 | 114 mm10 Jan 2020 | 226 mm2024 · driest 12 mm in 2021 | 24 |
| February | 26.1°C9 Feb 2017 | -20.6°C18 Feb 2021 | 79 mm23 Feb 2018 | 201 mm2018 · driest 18 mm in 2021 | 25 |
| March | 31.7°C30 Mar 2017 | -13.3°C6 Mar 2015 | 81 mm10 Mar 2016 | 243 mm2002 · driest 11 mm in 2007 | 25 |
| April | 34.4°C19 Apr 2006 | -4.4°C8 Apr 2007 | 128 mm6 Apr 2025 | 296 mm2025 · driest 7 mm in 2012 | 23 |
| May | 33.3°C28 May 2006 | 1.1°C4 May 2013 | 191 mm18 May 2003 | 384 mm2003 · driest 17 mm in 2005 | 24 |
| June | 37.8°C29 Jun 2012 | 8.9°C7 Jun 2000 | 127 mm7 Jun 2019 | 175 mm2020 · driest 9 mm in 2012 | 26 |
| July | 40.6°C14 Jul 2011 | 13.9°C16 Jul 2014 | 81 mm12 Jul 2010 | 269 mm2009 · driest 20 mm in 2025 | 27 |
| August | 41.1°C4 Aug 2011 | 8.3°C23 Aug 2016 | 107 mm31 Aug 2017 | 189 mm2017 · driest 1 mm in 2000 | 26 |
| September | 38.3°C1 Sep 2000 | 4.4°C26 Sep 2001 | 64 mm18 Sep 2006 | 187 mm2009 · driest 5 mm in 2019 | 26 |
| October | 32.8°C1 Oct 2023 | -1.7°C28 Oct 2001 | 89 mm30 Oct 2009 | 394 mm2009 · driest 0 mm in 2005 | 25 |
| November | 30.0°C3 Nov 2016 | -9.4°C18 Nov 2014 | 85 mm1 Nov 2018 | 275 mm2015 · driest 2 mm in 2012 | 25 |
| December | 25.0°C27 Dec 2015 | -18.9°C23 Dec 2022 | 117 mm22 Dec 2013 | 262 mm2013 · driest 6 mm in 2000 | 25 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | 0 | 0 | 18 | 3 |
| February | <1 | 0 | 13 | 3 |
| March | 2 | <1 | 7 | 4 |
| April | 9 | 1 | <1 | 3 |
| May | 18 | 5 | 0 | 4 |
| June | 25 | 16 | 0 | 2 |
| July | 26 | 20 | 0 | 3 |
| August | 26 | 20 | 0 | 2 |
| September | 22 | 11 | 0 | 2 |
| October | 11 | 2 | <1 | 3 |
| November | 2 | <1 | 6 | 3 |
| December | <1 | 0 | 15 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 3% | 20% | 10% | 11% | 6.0–11.7°C |
| February | 7% | 25% | 13% | 19% | 6.0–14.5°C |
| March | 25% | 26% | 14% | 25% | 13.3–21.1°C |
| April | 51% | 25% | 14% | 24% | 20.1–24.6°C |
| May | 65% | 29% | 16% | 29% | 24.1–27.8°C |
| June | 78% | 21% | 8% | 19% | 28.9–31.7°C |
| July | 77% | 22% | 11% | 16% | 30.1–33.0°C |
| August | 84% | 16% | 8% | 13% | 29.2–33.8°C |
| September | 81% | 18% | 8% | 12% | 26.8–30.2°C |
| October | 59% | 19% | 11% | 18% | 20.5–24.9°C |
| November | 22% | 22% | 11% | 18% | 13.1–18.6°C |
| December | 6% | 22% | 12% | 22% | 8.0–12.7°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