September
September · June · August
United States · 1991–2020
September leads for comfortable weather in Industry: typically 24.5°C by day, 13.2°C at night, with 100 mm of rain. Based on measured 1991–2020 NOAA station history.
September · June · August
July · August · June
October · May · September
The weakest month is January, scoring 5 against September’s 82 — days reach only 2.6°C, 21° 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 | 2.6°C | -5.4°C | 77 mm | 10.4 | 9 h 34 | 5 | Strong coverage |
| February | 4.3°C | -4.8°C | 62 mm | 9 | 10 h 35 | 5 | Strong coverage |
| March | 9.7°C | -1.1°C | 78 mm | 9.5 | 11 h 49 | 12 | Strong coverage |
| April | 17.1°C | 4.2°C | 90 mm | 10.7 | 13 h 14 | 43 | Strong coverage |
| May | 22.3°C | 10°C | 96 mm | 10.7 | 14 h 25 | 70 | Strong coverage |
| June | 26.5°C | 14.8°C | 109 mm | 9.8 | 15 h 04 | 75 | Strong coverage |
| July | 28.4°C | 17.4°C | 103 mm | 9 | 14 h 49 | 66 | Strong coverage |
| August | 27.8°C | 16.6°C | 93 mm | 7.5 | 13 h 47 | 73 | Strong coverage |
| September | 24.5°C | 13.2°C | 100 mm | 7.7 | 12 h 25 | 82 | Strong coverage |
| October | 18°C | 7.3°C | 73 mm | 8.6 | 11 h 03 | 56 | Strong coverage |
| November | 10.9°C | 1.5°C | 74 mm | 8.4 | 9 h 52 | 22 | Strong coverage |
| December | 5.1°C | -2.4°C | 74 mm | 9.6 | 9 h 17 | 5 | Strong coverage |
What has changed
Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 21.7°C13 Jan 2005 | -27.8°C21 Jan 1985 | 50 mm8 Jan 1998 | 154 mm2005 · driest 16 mm in 1967 | 65 |
| February | 24.4°C26 Feb 2000 | -23.9°C16 Feb 2015 | 49 mm18 Feb 2022 | 138 mm2019 · driest 7 mm in 1978 | 65 |
| March | 27.8°C31 Mar 1998 | -20.0°C2 Mar 1980 | 57 mm10 Mar 1964 | 151 mm2020 · driest 22 mm in 1986 | 65 |
| April | 32.2°C18 Apr 1976 | -10.0°C8 Apr 1982 | 50 mm3 Apr 2024 | 202 mm2024 · driest 17 mm in 1971 | 65 |
| May | 34.4°C18 May 1962 | -3.3°C11 May 1966 | 54 mm7 May 2022 | 218 mm2019 · driest 34 mm in 1964 | 65 |
| June | 40.6°C11 Jun 1983 | 1.1°C11 Jun 1972 | 68 mm26 Jun 2013 | 295 mm2019 · driest 21 mm in 1988 | 64 |
| July | 39.4°C8 Jul 1988 | 5.6°C13 Jul 2002 | 127 mm6 Jul 2007 | 230 mm1980 · driest 19 mm in 2002 | 65 |
| August | 37.8°C13 Aug 1988 | 3.9°C29 Aug 1982 | 83 mm9 Aug 1992 | 215 mm2007 · driest 17 mm in 2025 | 64 |
| September | 34.4°C10 Sep 1964 | -1.1°C23 Sep 1974 | 222 mm18 Sep 2004 | 364 mm2004 · driest 8 mm in 2014 | 64 |
| October | 30.6°C4 Oct 2019 | -7.2°C29 Oct 1965 | 63 mm30 Oct 2012 | 163 mm2006 · driest 3 mm in 1963 | 64 |
| November | 27.8°C4 Nov 1987 | -20.6°C30 Nov 1976 | 75 mm19 Nov 2017 | 253 mm1985 · driest 18 mm in 2016 | 64 |
| December | 23.3°C4 Dec 1982 | -22.8°C25 Dec 1983 | 76 mm1 Dec 2010 | 201 mm1990 · driest 17 mm in 1965 | 64 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 24 | 2 | 3 |
| February | 0 | 0 | 23 | 2 | 2 |
| March | <1 | 0 | 19 | 3 | 1 |
| April | 3 | 0 | 7 | 3 | <1 |
| May | 11 | 1 | <1 | 3 | 0 |
| June | 20 | 6 | 0 | 4 | 0 |
| July | 26 | 9 | 0 | 3 | 0 |
| August | 24 | 7 | 0 | 3 | 0 |
| September | 14 | 3 | 0 | 3 | 0 |
| October | 3 | <1 | 1 | 2 | 0 |
| November | <1 | 0 | 13 | 2 | <1 |
| December | 0 | 0 | 22 | 3 | 2 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 33% | 7% | 43% | -1.0–6.0°C |
| February | <1% | 31% | 7% | 39% | 1.4–8.3°C |
| March | 10% | 33% | 9% | 47% | 7.2–13.7°C |
| April | 27% | 36% | 10% | 46% | 14.9–19.7°C |
| May | 51% | 35% | 11% | 45% | 20.1–25.6°C |
| June | 67% | 31% | 11% | 38% | 25.2–28.7°C |
| July | 72% | 29% | 11% | 31% | 27.1–30.7°C |
| August | 75% | 25% | 10% | 25% | 26.4–29.4°C |
| September | 68% | 26% | 9% | 29% | 22.7–26.3°C |
| October | 33% | 27% | 7% | 30% | 16.1–19.9°C |
| November | 6% | 31% | 8% | 39% | 8.1–13.8°C |
| December | <1% | 33% | 8% | 44% | 1.5–8.6°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