October
October · April · May
United States · 1991–2020
October leads for comfortable weather in Hempwallace: typically 24°C by day, 11.5°C at night, with 124 mm of rain. Based on measured 1991–2020 NOAA station history.
October · April · May
September · June · August
March · April · November
The weakest month is January, scoring 22 against October’s 78 — days reach only 11.4°C, 13° below the 24°C the score treats as ideal, and nights drop to 0.6°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 | 11.4°C | 0.6°C | 86 mm | 7 | 10 h 05 | 22 | Strong coverage |
| February | 13.8°C | 2.4°C | 102 mm | 7.1 | 10 h 53 | 31 | Strong coverage |
| March | 18.7°C | 6.5°C | 124 mm | 8.4 | 11 h 52 | 50 | Strong coverage |
| April | 23.4°C | 10.9°C | 126 mm | 7.6 | 13 h | 74 | Strong coverage |
| May | 27.4°C | 16.2°C | 149 mm | 9 | 13 h 56 | 65 | Strong coverage |
| June | 31.8°C | 20.7°C | 113 mm | 7.1 | 14 h 27 | 49 | Strong coverage |
| July | 34°C | 22.6°C | 100 mm | 7.1 | 14 h 15 | 41 | Strong coverage |
| August | 33.9°C | 22°C | 84 mm | 5.7 | 13 h 26 | 45 | Strong coverage |
| September | 30.1°C | 18°C | 88 mm | 5 | 12 h 21 | 65 | Strong coverage |
| October | 24°C | 11.5°C | 124 mm | 7 | 11 h 15 | 78 | Strong coverage |
| November | 17.2°C | 5.7°C | 114 mm | 7.1 | 10 h 19 | 46 | Strong coverage |
| December | 12.4°C | 1.8°C | 118 mm | 7.8 | 9 h 52 | 22 | Strong coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 26.1°C30 Jan 2002 | -14.9°C17 Jan 2024 | 95 mm13 Jan 2007 | 228 mm2007 · driest 17 mm in 2026 | 40 |
| February | 27.8°C21 Feb 1996 | -19.3°C16 Feb 2021 | 108 mm21 Feb 2018 | 350 mm2018 · driest 34 mm in 2009 | 40 |
| March | 31.7°C22 Mar 2026 | -10.6°C4 Mar 2002 | 95 mm7 Mar 1990 | 291 mm1990 · driest 47 mm in 2018 | 40 |
| April | 35.6°C20 Apr 1987 | -4.4°C7 Apr 1994 | 93 mm11 Apr 1995 | 292 mm2025 · driest 25 mm in 2005 | 40 |
| May | 36.7°C20 May 2005 | 2.2°C4 May 2013 | 293 mm20 May 1990 | 494 mm1990 · driest 4 mm in 2012 | 40 |
| June | 41.7°C25 Jun 2012 | 10.0°C11 Jun 1988 | 102 mm17 Jun 1997 | 302 mm1986 · driest 13 mm in 2009 | 41 |
| July | 43.3°C31 Jul 1986 | 14.4°C15 Jul 1987 | 100 mm26 Jul 2010 | 275 mm1994 · driest 10 mm in 2022 | 41 |
| August | 43.9°C30 Aug 2000 | 10.0°C16 Aug 1992 | 114 mm6 Aug 1993 | 222 mm2020 · driest 0 mm in 2007 | 40 |
| September | 42.2°C2 Sep 2000 | 5.0°C30 Sep 1992 | 124 mm2 Sep 2008 | 252 mm2008 · driest 2 mm in 2015 | 40 |
| October | 35.6°C2 Oct 2019 | -3.3°C31 Oct 1993 | 119 mm29 Oct 1991 | 338 mm2009 · driest 14 mm in 2016 | 40 |
| November | 30.0°C14 Nov 1999 | -8.3°C9 Nov 1991 | 143 mm19 Nov 1988 | 328 mm1988 · driest 15 mm in 2017 | 40 |
| December | 26.7°C3 Dec 2005 | -17.2°C23 Dec 1989 | 119 mm25 Dec 1987 | 376 mm1987 · driest 5 mm in 2025 | 40 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) |
|---|---|---|---|---|
| January | <1 | 0 | 16 | 3 |
| February | <1 | 0 | 11 | 3 |
| March | 5 | <1 | 4 | 4 |
| April | 13 | 1 | <1 | 4 |
| May | 24 | 10 | 0 | 5 |
| June | 29 | 23 | 0 | 3 |
| July | 30 | 28 | 0 | 3 |
| August | 31 | 27 | 0 | 2 |
| September | 27 | 17 | 0 | 3 |
| October | 15 | 4 | <1 | 3 |
| November | 2 | 0 | 6 | 3 |
| December | <1 | 0 | 14 | 4 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 6% | 22% | 10% | 21% | 9.1–13.9°C |
| February | 18% | 25% | 11% | 26% | 9.7–17.6°C |
| March | 39% | 27% | 13% | 29% | 16.3–21.5°C |
| April | 63% | 26% | 13% | 27% | 21.9–25.2°C |
| May | 70% | 30% | 16% | 36% | 25.6–29.1°C |
| June | 76% | 24% | 10% | 24% | 30.5–33.9°C |
| July | 78% | 22% | 10% | 20% | 32.1–36.3°C |
| August | 82% | 18% | 8% | 17% | 31.8–36.4°C |
| September | 83% | 17% | 8% | 13% | 27.9–32.3°C |
| October | 67% | 21% | 11% | 24% | 22.2–25.9°C |
| November | 31% | 23% | 11% | 24% | 14.6–20.0°C |
| December | 7% | 25% | 11% | 29% | 10.2–14.3°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