September
September · October · April
United States · 1991–2020
September leads for comfortable weather in Hilburn: typically 28.1°C by day, 12.6°C at night, with 48 mm of rain. Based on measured 1991–2020 NOAA station history.
September · October · April
July · August · September
April · October · March
The weakest month is January, scoring 20 against September’s 79 — days reach only 11.2°C, 13° below the 24°C the score treats as ideal, and nights drop to -5.7°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 | 11.2°C | -5.7°C | 13 mm | 1.7 | 10 h 05 | 20 | Strong coverage |
| February | 13.6°C | -4.2°C | 13 mm | 2.2 | 10 h 54 | 31 | Strong coverage |
| March | 18.1°C | 0°C | 25 mm | 3.3 | 11 h 52 | 53 | Strong coverage |
| April | 22.6°C | 4.1°C | 30 mm | 3.3 | 13 h | 76 | Strong coverage |
| May | 27.1°C | 10.3°C | 62 mm | 5.1 | 13 h 56 | 75 | Strong coverage |
| June | 31.5°C | 15.6°C | 65 mm | 6.1 | 14 h 26 | 67 | Strong coverage |
| July | 32.4°C | 17.4°C | 54 mm | 5.1 | 14 h 14 | 63 | Strong coverage |
| August | 31.7°C | 16.6°C | 61 mm | 5.9 | 13 h 26 | 66 | Strong coverage |
| September | 28.1°C | 12.6°C | 48 mm | 4.5 | 12 h 21 | 79 | Strong coverage |
| October | 23°C | 5.8°C | 42 mm | 3.7 | 11 h 16 | 79 | Strong coverage |
| November | 16.4°C | -0.8°C | 21 mm | 2.4 | 10 h 19 | 46 | Strong coverage |
| December | 11.3°C | -4.9°C | 16 mm | 2.2 | 9 h 52 | 22 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 27.2°C25 Jan 1999 | -22.8°C7 Jan 2017 | 26 mm30 Jan 1999 | 39 mm2017 · driest 0 mm in 2014 | 40 |
| February | 30.0°C4 Feb 2025 | -23.9°C16 Feb 2021 | 29 mm24 Feb 2001 | 45 mm1990 · driest 0 mm in 2000 | 40 |
| March | 35.6°C22 Mar 2026 | -16.1°C3 Mar 2002 | 35 mm29 Mar 2017 | 103 mm2007 · driest 0 mm in 2026 | 40 |
| April | 38.9°C26 Apr 2012 | -6.7°C12 Apr 1997 | 53 mm17 Apr 2009 | 126 mm1997 · driest 0 mm in 1991 | 40 |
| May | 42.2°C25 May 2000 | -4.4°C3 May 2013 | 93 mm1 May 1999 | 193 mm2015 · driest 2 mm in 2000 | 40 |
| June | 43.3°C28 Jun 1994 | 6.7°C6 Jun 1998 | 95 mm6 Jun 1991 | 172 mm1989 · driest 1 mm in 2022 | 40 |
| July | 41.1°C14 Jul 2020 | 11.1°C14 Jul 1990 | 89 mm17 Jul 2013 | 165 mm2015 · driest 0 mm in 2003 | 40 |
| August | 40.0°C3 Aug 2012 | 8.9°C11 Aug 1997 | 88 mm21 Aug 2022 | 160 mm2017 · driest 2 mm in 2000 | 39 |
| September | 41.7°C12 Sep 2000 | 0.6°C29 Sep 2020 | 79 mm7 Sep 2016 | 146 mm1991 · driest 0 mm in 2000 | 39 |
| October | 36.7°C4 Oct 2000 | -10.0°C31 Oct 2019 | 101 mm2 Oct 2019 | 156 mm2015 · driest 0 mm in 1992 | 40 |
| November | 32.8°C10 Nov 2006 | -18.9°C3 Nov 1991 | 49 mm18 Nov 2024 | 130 mm2024 · driest 0 mm in 2021 | 40 |
| December | 26.7°C8 Dec 2007 | -23.9°C25 Dec 2004 | 28 mm11 Dec 2007 | 80 mm1991 · driest 0 mm in 2017 | 40 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 29 | <1 | <1 |
| February | 1 | 0 | 24 | <1 | 1 |
| March | 6 | <1 | 16 | <1 | <1 |
| April | 14 | 4 | 5 | 1 | <1 |
| May | 21 | 11 | <1 | 2 | 0 |
| June | 28 | 21 | 0 | 2 | 0 |
| July | 30 | 26 | 0 | 2 | 0 |
| August | 30 | 23 | 0 | 2 | 0 |
| September | 24 | 12 | 0 | 2 | 0 |
| October | 14 | 4 | 3 | 1 | <1 |
| November | 3 | <1 | 18 | <1 | <1 |
| December | <1 | 0 | 28 | <1 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 12% | 6% | 1% | 1% | 7.1–13.6°C |
| February | 24% | 7% | 1% | 2% | 10.3–17.3°C |
| March | 45% | 8% | 2% | 3% | 15.2–20.6°C |
| April | 66% | 10% | 3% | 7% | 20.9–24.9°C |
| May | 75% | 17% | 6% | 17% | 24.5–30.5°C |
| June | 79% | 19% | 8% | 17% | 29.3–33.9°C |
| July | 84% | 15% | 6% | 13% | 30.3–34.6°C |
| August | 80% | 17% | 7% | 13% | 30.0–34.2°C |
| September | 82% | 14% | 6% | 12% | 25.9–30.5°C |
| October | 69% | 11% | 4% | 8% | 20.5–25.2°C |
| November | 36% | 7% | 2% | 3% | 13.2–19.1°C |
| December | 12% | 6% | 1% | 2% | 8.3–14.1°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