October
October · May · April
United States · 1991–2020
October leads for comfortable weather in Stillwater: typically 22.8°C by day, 9.2°C at night, with 84 mm of rain. Based on measured 1991–2020 NOAA station history.
October · May · April
September · August · June
October · March · April
The weakest month is January, scoring 20 against October’s 76 — days reach only 10°C, 14° below the 24°C the score treats as ideal, and nights drop to -3.5°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 | 10°C | -3.5°C | 32 mm | 3.2 | 9 h 57 | 20 | Good coverage |
| February | 11.3°C | -1.8°C | 43 mm | 4.6 | 10 h 49 | 25 | Good coverage |
| March | 17.9°C | 4.2°C | 66 mm | 5.4 | 11 h 51 | 54 | Good coverage |
| April | 22.4°C | 8.7°C | 101 mm | 6.8 | 13 h 03 | 71 | Good coverage |
| May | 26.5°C | 14.3°C | 125 mm | 8.7 | 14 h 04 | 73 | Good coverage |
| June | 31.7°C | 19.9°C | 117 mm | 6.8 | 14 h 36 | 51 | Good coverage |
| July | 34.1°C | 21.9°C | 87 mm | 5.4 | 14 h 23 | 45 | Good coverage |
| August | 33.7°C | 21.1°C | 91 mm | 6.6 | 13 h 32 | 46 | Good coverage |
| September | 29.6°C | 16.5°C | 77 mm | 5.1 | 12 h 22 | 71 | Good coverage |
| October | 22.8°C | 9.2°C | 84 mm | 5.9 | 11 h 12 | 76 | Good coverage |
| November | 16.8°C | 3°C | 46 mm | 4.2 | 10 h 12 | 52 | Good coverage |
| December | 10.5°C | -2.1°C | 36 mm | 3.9 | 9 h 43 | 24 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 27.0°C28 Jan 2015 | -22.2°C15 Jan 2024 | 33 mm3 Jan 2019 | 76 mm2020 · driest 2 mm in 2003 | 24 |
| February | 30.9°C26 Feb 2024 | -29.2°C10 Feb 2011 | 54 mm3 Feb 2012 | 80 mm2013 · driest 4 mm in 2006 | 24 |
| March | 36.5°C21 Mar 2026 | -17.3°C3 Mar 2014 | 64 mm4 Mar 2004 | 136 mm2007 · driest 13 mm in 2023 | 25 |
| April | 37.7°C17 Apr 2006 | -5.7°C7 Apr 2009 | 116 mm29 Apr 2017 | 247 mm2017 · driest 11 mm in 2005 | 25 |
| May | 37.4°C25 May 2006 | 0.1°C3 May 2013 | 109 mm20 May 2019 | 428 mm2019 · driest 5 mm in 2004 | 25 |
| June | 39.9°C10 Jun 2006 | 9.8°C1 Jun 2012 | 133 mm1 Jun 2007 | 432 mm2007 · driest 39 mm in 2016 | 25 |
| July | 43.8°C9 Jul 2011 | 11.7°C28 Jul 2005 | 74 mm12 Jul 2008 | 181 mm2007 · driest 3 mm in 2012 | 25 |
| August | 44.4°C1 Aug 2012 | 11.0°C20 Aug 2015 | 74 mm23 Aug 2019 | 224 mm2005 · driest 33 mm in 2007 | 24 |
| September | 40.4°C3 Sep 2012 | 4.4°C29 Sep 2020 | 64 mm22 Sep 2019 | 159 mm2019 · driest 2 mm in 2025 | 24 |
| October | 35.3°C3 Oct 2024 | -4.9°C31 Oct 2019 | 94 mm4 Oct 2017 | 188 mm2009 · driest 18 mm in 2012 | 24 |
| November | 31.5°C7 Nov 2023 | -9.9°C12 Nov 2019 | 88 mm3 Nov 2024 | 224 mm2024 · driest 0 mm in 2002 | 24 |
| December | 29.3°C27 Dec 2025 | -17.6°C9 Dec 2005 | 58 mm26 Dec 2018 | 90 mm2018 · driest 0 mm in 2025 | 24 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 24 | 1 |
| February | <1 | <1 | 19 | 1 |
| March | 5 | <1 | 8 | 2 |
| April | 11 | 3 | 2 | 3 |
| May | 20 | 8 | 0 | 4 |
| June | 29 | 22 | 0 | 4 |
| July | 30 | 27 | 0 | 3 |
| August | 30 | 26 | 0 | 3 |
| September | 26 | 15 | 0 | 3 |
| October | 13 | 4 | 1 | 3 |
| November | 2 | <1 | 10 | 2 |
| December | <1 | 0 | 21 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 8% | 11% | 4% | 6% | 7.2–12.0°C |
| February | 17% | 16% | 4% | 9% | 8.5–16.9°C |
| March | 40% | 16% | 6% | 13% | 15.7–21.5°C |
| April | 58% | 24% | 11% | 24% | 20.4–24.7°C |
| May | 66% | 29% | 13% | 36% | 24.4–28.6°C |
| June | 77% | 24% | 13% | 25% | 29.5–33.4°C |
| July | 82% | 18% | 9% | 14% | 32.0–37.2°C |
| August | 80% | 20% | 9% | 20% | 31.5–35.4°C |
| September | 85% | 15% | 7% | 9% | 27.7–32.3°C |
| October | 63% | 19% | 9% | 17% | 20.8–26.3°C |
| November | 31% | 14% | 6% | 11% | 14.4–19.3°C |
| December | 8% | 12% | 5% | 6% | 8.6–13.5°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