October
October · May · April
United States · 1991–2020
October leads for comfortable weather in Sheridan: typically 24.2°C by day, 9.6°C at night, with 114 mm of rain. Based on measured 1991–2020 NOAA station history.
October · May · April
August · September · June
October · November · March
The weakest month is January, scoring 14 against October’s 76 — days reach only 10.8°C, 13° below the 24°C the score treats as ideal, and nights drop to -1.4°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 | 10.8°C | -1.4°C | 100 mm | 7.1 | 10 h 06 | 14 | Strong coverage |
| February | 13.8°C | 0.4°C | 108 mm | 6.5 | 10 h 54 | 26 | Strong coverage |
| March | 18.8°C | 4.7°C | 147 mm | 7.7 | 11 h 52 | 44 | Strong coverage |
| April | 23.7°C | 9.1°C | 152 mm | 7 | 13 h | 68 | Strong coverage |
| May | 27.6°C | 14.7°C | 138 mm | 7.4 | 13 h 56 | 69 | Strong coverage |
| June | 31.6°C | 19.4°C | 102 mm | 6 | 14 h 26 | 55 | Strong coverage |
| July | 33.7°C | 21.4°C | 109 mm | 6 | 14 h 14 | 44 | Strong coverage |
| August | 33.3°C | 20.7°C | 77 mm | 4.6 | 13 h 26 | 52 | Strong coverage |
| September | 30.1°C | 16.6°C | 86 mm | 4.7 | 12 h 21 | 68 | Strong coverage |
| October | 24.2°C | 9.6°C | 114 mm | 5.5 | 11 h 16 | 76 | Strong coverage |
| November | 17.3°C | 3.8°C | 111 mm | 6.1 | 10 h 20 | 44 | Strong coverage |
| December | 12.3°C | 0.3°C | 122 mm | 6.7 | 9 h 52 | 19 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.7°C31 Jan 2002 | -19.4°C11 Jan 1982 | 122 mm25 Jan 2004 | 245 mm2024 · driest 6 mm in 1986 | 48 |
| February | 30.0°C20 Feb 1986 | -17.8°C17 Feb 2021 | 95 mm28 Feb 1987 | 354 mm2018 · driest 24 mm in 2006 | 48 |
| March | 32.8°C27 Mar 2020 | -10.6°C5 Mar 1978 | 129 mm8 Mar 1990 | 353 mm2015 · driest 21 mm in 1982 | 50 |
| April | 35.6°C21 Apr 1987 | -3.3°C4 Apr 1987 | 205 mm5 Apr 1997 | 385 mm1997 · driest 13 mm in 1987 | 50 |
| May | 36.1°C21 May 2005 | 1.1°C4 May 2013 | 203 mm25 May 2024 | 388 mm2009 · driest 21 mm in 2012 | 50 |
| June | 40.0°C29 Jun 2012 | 7.2°C1 Jun 1984 | 152 mm12 Jun 2003 | 340 mm2020 · driest 15 mm in 2012 | 49 |
| July | 42.2°C17 Jul 1980 | 12.8°C15 Jul 1990 | 109 mm10 Jul 2007 | 281 mm1989 · driest 4 mm in 1993 | 49 |
| August | 41.7°C1 Aug 2012 | 8.9°C29 Aug 1986 | 137 mm29 Aug 1978 | 199 mm2016 · driest 8 mm in 2007 | 48 |
| September | 42.2°C1 Sep 2000 | 2.8°C22 Sep 1982 | 191 mm3 Sep 2008 | 301 mm2008 · driest 0 mm in 2011 | 47 |
| October | 36.1°C3 Oct 2019 | -3.9°C30 Oct 1980 | 182 mm30 Oct 2009 | 458 mm2009 · driest 0 mm in 2005 | 48 |
| November | 30.0°C1 Nov 2016 | -10.0°C30 Nov 1979 | 121 mm30 Nov 2015 | 299 mm1987 · driest 14 mm in 2017 | 48 |
| December | 26.1°C25 Dec 2021 | -22.2°C23 Dec 1989 | 144 mm28 Dec 2015 | 328 mm1982 · driest 8 mm in 2005 | 49 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 21 | 3 | <1 |
| February | 1 | 0 | 16 | 4 | <1 |
| March | 6 | <1 | 7 | 4 | <1 |
| April | 14 | 2 | <1 | 4 | 0 |
| May | 24 | 11 | 0 | 4 | 0 |
| June | 29 | 23 | 0 | 3 | 0 |
| July | 31 | 28 | 0 | 3 | 0 |
| August | 31 | 27 | 0 | 2 | 0 |
| September | 27 | 17 | 0 | 2 | 0 |
| October | 15 | 4 | 1 | 3 | 0 |
| November | 3 | 0 | 9 | 4 | <1 |
| December | <1 | 0 | 16 | 4 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 7% | 22% | 11% | 22% | 7.9–13.3°C |
| February | 18% | 24% | 13% | 25% | 9.3–16.5°C |
| March | 39% | 25% | 14% | 25% | 16.5–21.9°C |
| April | 64% | 25% | 15% | 23% | 22.0–26.1°C |
| May | 72% | 26% | 15% | 28% | 26.3–29.6°C |
| June | 80% | 20% | 11% | 18% | 30.2–33.3°C |
| July | 80% | 20% | 10% | 18% | 32.1–35.8°C |
| August | 85% | 16% | 7% | 12% | 31.4–35.8°C |
| September | 82% | 17% | 8% | 13% | 28.3–32.7°C |
| October | 70% | 18% | 10% | 18% | 23.0–26.2°C |
| November | 30% | 21% | 12% | 20% | 14.7–20.2°C |
| December | 9% | 22% | 12% | 22% | 9.6–15.1°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