September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Auburn: typically 24.4°C by day, 11.4°C at night, with 82 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
July · August · June
October · September · May
The weakest month is January, scoring 5 against September’s 82 — days reach only 0.2°C, 24° below the 24°C the score treats as ideal.
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 | 0.2°C | -8°C | 64 mm | 8.5 | 9 h 29 | 5 | Strong coverage |
| February | 2.6°C | -6.7°C | 58 mm | 7.2 | 10 h 33 | 5 | Strong coverage |
| March | 9°C | -2°C | 68 mm | 8.5 | 11 h 48 | 10 | Strong coverage |
| April | 16.4°C | 3.4°C | 102 mm | 11 | 13 h 16 | 38 | Strong coverage |
| May | 22.3°C | 9.6°C | 120 mm | 10.6 | 14 h 29 | 66 | Strong coverage |
| June | 26.8°C | 14.9°C | 100 mm | 9.1 | 15 h 09 | 76 | Strong coverage |
| July | 28.5°C | 16.5°C | 89 mm | 7.8 | 14 h 53 | 70 | Strong coverage |
| August | 27.5°C | 15.5°C | 99 mm | 7.7 | 13 h 50 | 74 | Strong coverage |
| September | 24.4°C | 11.4°C | 82 mm | 7 | 12 h 25 | 82 | Strong coverage |
| October | 17.6°C | 5.7°C | 77 mm | 8.6 | 11 h 01 | 51 | Strong coverage |
| November | 9.6°C | 0.1°C | 78 mm | 8.3 | 9 h 48 | 15 | Strong coverage |
| December | 2.9°C | -4.6°C | 66 mm | 8.7 | 9 h 12 | 5 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 18.3°C7 Jan 2008 | -32.2°C31 Jan 2019 | 55 mm8 Jan 2008 | 136 mm2005 · driest 17 mm in 2022 | 37 |
| February | 22.8°C25 Feb 2000 | -31.7°C12 Feb 2014 | 67 mm22 Feb 1990 | 152 mm2008 · driest 14 mm in 2004 | 38 |
| March | 28.9°C21 Mar 2012 | -21.7°C6 Mar 2015 | 64 mm8 Mar 2009 | 169 mm2009 · driest 20 mm in 2001 | 38 |
| April | 29.4°C18 Apr 2002 | -11.7°C7 Apr 1994 | 75 mm1 Apr 2026 | 193 mm2011 · driest 5 mm in 2004 | 38 |
| May | 33.9°C29 May 2006 | -4.4°C4 May 2005 | 88 mm17 May 1996 | 248 mm2017 · driest 18 mm in 2007 | 38 |
| June | 38.9°C28 Jun 2012 | 2.8°C6 Jun 1998 | 76 mm27 Jun 2015 | 199 mm2015 · driest 23 mm in 2012 | 38 |
| July | 38.3°C7 Jul 2012 | 5.6°C2 Jul 2001 | 81 mm22 Jul 2004 | 195 mm2022 · driest 31 mm in 2020 | 37 |
| August | 36.1°C15 Aug 2000 | 4.4°C27 Aug 2025 | 105 mm20 Aug 2007 | 289 mm2007 · driest 16 mm in 2025 | 37 |
| September | 36.1°C2 Sep 2011 | -2.2°C28 Sep 1991 | 120 mm12 Sep 2000 | 191 mm2003 · driest 4 mm in 1998 | 37 |
| October | 32.2°C8 Oct 2007 | -5.6°C31 Oct 2023 | 61 mm7 Oct 1998 | 241 mm2021 · driest 9 mm in 2005 | 37 |
| November | 25.6°C1 Nov 2016 | -15.6°C13 Nov 2019 | 65 mm5 Nov 2017 | 175 mm2011 · driest 18 mm in 2023 | 37 |
| December | 19.4°C5 Dec 2001 | -27.8°C22 Dec 1989 | 42 mm29 Dec 1990 | 158 mm1990 · driest 21 mm in 2017 | 36 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 27 | 2 | 9 |
| February | 0 | 0 | 25 | 2 | 7 |
| March | <1 | 0 | 21 | 2 | 4 |
| April | 3 | 0 | 8 | 3 | 1 |
| May | 10 | 2 | <1 | 4 | 0 |
| June | 21 | 7 | 0 | 4 | 0 |
| July | 27 | 11 | 0 | 3 | 0 |
| August | 25 | 7 | 0 | 3 | 0 |
| September | 15 | 3 | <1 | 2 | 0 |
| October | 4 | <1 | 4 | 2 | <1 |
| November | <1 | 0 | 16 | 3 | 2 |
| December | 0 | 0 | 25 | 2 | 6 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 0% | 27% | 7% | 30% | -2.6–3.0°C |
| February | <1% | 25% | 6% | 27% | -0.8–6.4°C |
| March | 8% | 27% | 8% | 32% | 5.9–13.5°C |
| April | 21% | 36% | 11% | 50% | 14.4–18.7°C |
| May | 47% | 33% | 12% | 44% | 19.7–25.3°C |
| June | 68% | 30% | 12% | 32% | 25.0–29.0°C |
| July | 74% | 26% | 11% | 30% | 26.0–30.7°C |
| August | 76% | 24% | 11% | 22% | 25.4–28.8°C |
| September | 67% | 23% | 8% | 25% | 22.6–27.3°C |
| October | 30% | 28% | 9% | 31% | 16.1–19.5°C |
| November | 4% | 27% | 8% | 31% | 5.9–12.8°C |
| December | 0% | 28% | 8% | 32% | -0.4–6.5°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