September
September · May · June
United States · 1991–2020
September leads for comfortable weather in Gilbert Creek: typically 25.9°C by day, 13.3°C at night, with 79 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · June
August · July · September
October · April · September
The weakest month is January, scoring 5 against September’s 81 — days reach only 6.5°C, 17° below the 24°C the score treats as ideal, and nights drop to -4.9°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 | 6.5°C | -4.9°C | 95 mm | 11.4 | 9 h 50 | 5 | Good coverage |
| February | 8.8°C | -3.6°C | 87 mm | 10.2 | 10 h 44 | 5 | Good coverage |
| March | 13.6°C | -0.3°C | 99 mm | 11.1 | 11 h 50 | 22 | Good coverage |
| April | 20.1°C | 4.9°C | 114 mm | 10.6 | 13 h 07 | 51 | Good coverage |
| May | 24.1°C | 10.5°C | 117 mm | 11.4 | 14 h 10 | 73 | Good coverage |
| June | 27.5°C | 15.1°C | 120 mm | 10.5 | 14 h 45 | 70 | Good coverage |
| July | 28.8°C | 17.3°C | 143 mm | 11.3 | 14 h 31 | 57 | Good coverage |
| August | 28.4°C | 17°C | 97 mm | 9.1 | 13 h 36 | 68 | Good coverage |
| September | 25.9°C | 13.3°C | 79 mm | 7.3 | 12 h 23 | 81 | Good coverage |
| October | 19.7°C | 6.7°C | 86 mm | 7.9 | 11 h 09 | 59 | Good coverage |
| November | 14°C | 0.4°C | 77 mm | 8.3 | 10 h 06 | 30 | Good coverage |
| December | 8°C | -2.7°C | 96 mm | 10.8 | 9 h 35 | 5 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 25.6°C30 Jan 2002 | -20.6°C7 Jan 2014 | 65 mm2 Jan 2022 | 169 mm2022 · driest 44 mm in 2015 | 29 |
| February | 26.7°C23 Feb 2023 | -26.7°C22 Feb 2015 | 79 mm17 Feb 2023 | 212 mm2019 · driest 25 mm in 2009 | 29 |
| March | 30.0°C29 Mar 2020 | -14.4°C4 Mar 2014 | 62 mm1 Mar 2021 | 182 mm2002 · driest 26 mm in 2003 | 28 |
| April | 32.8°C3 Apr 2010 | -5.6°C8 Apr 2007 | 74 mm15 Apr 2007 | 206 mm2020 · driest 22 mm in 2008 | 29 |
| May | 33.9°C19 May 2026 | -1.1°C4 May 2004 | 55 mm31 May 2004 | 218 mm2017 · driest 15 mm in 2007 | 29 |
| June | 38.3°C30 Jun 2012 | 5.6°C3 Jun 2003 | 122 mm13 Jun 2010 | 323 mm2010 · driest 19 mm in 2008 | 29 |
| July | 38.3°C1 Jul 2012 | 6.1°C21 Jul 2004 | 112 mm27 Jul 2022 | 359 mm2022 · driest 44 mm in 2004 | 29 |
| August | 36.1°C11 Aug 2010 | 8.9°C22 Aug 2024 | 82 mm31 Aug 2021 | 237 mm2021 · driest 32 mm in 2007 | 28 |
| September | 36.1°C14 Sep 1998 | 3.3°C24 Sep 1999 | 56 mm19 Sep 2016 | 182 mm2018 · driest 4 mm in 2019 | 27 |
| October | 33.9°C2 Oct 2019 | -3.3°C28 Oct 2006 | 52 mm28 Oct 2006 | 186 mm2014 · driest 9 mm in 2000 | 27 |
| November | 27.2°C12 Nov 2024 | -11.1°C20 Nov 2014 | 71 mm19 Nov 2003 | 203 mm2003 · driest 8 mm in 2008 | 28 |
| December | 24.4°C5 Dec 2001 | -18.9°C24 Dec 2022 | 47 mm1 Dec 2010 | 171 mm2013 · driest 23 mm in 2009 | 29 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 21 | 3 | 2 |
| February | <1 | 0 | 19 | 3 | 2 |
| March | 2 | 0 | 16 | 3 | <1 |
| April | 7 | <1 | 5 | 4 | 0 |
| May | 15 | 3 | <1 | 4 | 0 |
| June | 21 | 8 | 0 | 4 | 0 |
| July | 24 | 11 | 0 | 5 | 0 |
| August | 26 | 9 | 0 | 4 | 0 |
| September | 17 | 5 | 0 | 3 | 0 |
| October | 5 | <1 | 3 | 3 | 0 |
| November | <1 | 0 | 14 | 3 | <1 |
| December | 0 | 0 | 20 | 3 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 1% | 37% | 10% | 48% | 3.0–10.0°C |
| February | 3% | 38% | 11% | 55% | 4.5–12.9°C |
| March | 19% | 35% | 11% | 43% | 10.3–17.9°C |
| April | 39% | 35% | 13% | 50% | 17.5–22.3°C |
| May | 52% | 37% | 13% | 52% | 21.7–26.0°C |
| June | 63% | 36% | 13% | 47% | 26.0–28.8°C |
| July | 64% | 37% | 16% | 49% | 27.6–30.6°C |
| August | 71% | 29% | 12% | 33% | 26.7–29.8°C |
| September | 71% | 24% | 9% | 23% | 23.9–28.0°C |
| October | 43% | 24% | 9% | 26% | 18.1–21.8°C |
| November | 15% | 29% | 9% | 37% | 11.2–16.8°C |
| December | 2% | 35% | 10% | 48% | 4.8–11.4°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