May
May · October · June
United States · 1991–2020
May leads for comfortable weather in Bragdon (historical): typically 24.6°C by day, 6.6°C at night, with 43 mm of rain. Based on measured 1991–2020 NOAA station history.
May · October · June
June · July · August
May · April · October
The weakest month is January, scoring 5 against May’s 80 — days reach only 9.4°C, 15° 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 | 9.4°C | 0.4°C | 144 mm | 12.3 | 9 h 32 | 5 | Strong coverage |
| February | 12.6°C | 0.5°C | 119 mm | 10 | 10 h 34 | 18 | Strong coverage |
| March | 15.7°C | 1.7°C | 103 mm | 10.9 | 11 h 49 | 32 | Strong coverage |
| April | 19.1°C | 3.2°C | 66 mm | 7.6 | 13 h 14 | 54 | Strong coverage |
| May | 24.6°C | 6.6°C | 43 mm | 5.4 | 14 h 26 | 80 | Strong coverage |
| June | 29.3°C | 9.2°C | 22 mm | 2.4 | 15 h 06 | 72 | Strong coverage |
| July | 34.6°C | 12.2°C | 5 mm | 0.7 | 14 h 50 | 60 | Strong coverage |
| August | 34°C | 11°C | 4 mm | 0.7 | 13 h 48 | 60 | Strong coverage |
| September | 30.9°C | 7.5°C | 8 mm | 1.3 | 12 h 25 | 64 | Strong coverage |
| October | 23.5°C | 3.7°C | 49 mm | 4.2 | 11 h 02 | 75 | Strong coverage |
| November | 14°C | 2°C | 89 mm | 8.4 | 9 h 50 | 31 | Strong coverage |
| December | 8.5°C | 0.1°C | 164 mm | 12.3 | 9 h 15 | 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 | 21.1°C23 Jan 2022 | -11.1°C13 Jan 2007 | 89 mm11 Jan 1979 | 462 mm1995 · driest 12 mm in 1984 | 52 |
| February | 27.2°C11 Feb 2022 | -12.2°C8 Feb 1989 | 91 mm14 Feb 2019 | 378 mm1998 · driest 0 mm in 2022 | 51 |
| March | 30.0°C20 Mar 2024 | -6.7°C7 Mar 2012 | 75 mm18 Mar 1975 | 381 mm1983 · driest 5 mm in 1988 | 51 |
| April | 34.4°C28 Apr 2023 | -5.0°C1 Apr 2008 | 50 mm7 Apr 2018 | 178 mm2003 · driest 6 mm in 1985 | 49 |
| May | 39.4°C31 May 2025 | -2.8°C4 May 1988 | 78 mm31 May 1993 | 177 mm1993 · driest 0 mm in 1984 | 52 |
| June | 43.9°C27 Jun 2021 | 0.6°C5 Jun 1982 | 37 mm19 Jun 2005 | 98 mm2009 · driest 0 mm in 2004 | 52 |
| July | 46.7°C29 Jul 2022 | 2.8°C1 Jul 1976 | 47 mm9 Jul 2015 | 51 mm2015 · driest 0 mm in 2005 | 51 |
| August | 45.0°C9 Aug 1981 | 3.3°C31 Aug 1999 | 29 mm3 Aug 2003 | 41 mm1976 · driest 0 mm in 1992 | 50 |
| September | 45.6°C7 Sep 2022 | 0.0°C21 Sep 2004 | 67 mm17 Sep 1989 | 119 mm1989 · driest 0 mm in 2004 | 52 |
| October | 38.9°C2 Oct 2024 | -6.7°C30 Oct 2019 | 83 mm24 Oct 2010 | 192 mm2016 · driest 0 mm in 2002 | 52 |
| November | 28.3°C6 Nov 2020 | -9.4°C25 Nov 1993 | 67 mm22 Nov 2024 | 336 mm1984 · driest 19 mm in 1993 | 52 |
| December | 19.4°C11 Dec 1976 | -15.6°C22 Dec 1990 | 75 mm19 Dec 1981 | 448 mm2005 · driest 1 mm in 1989 | 51 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 15 | 5 | 1 |
| February | 0 | 0 | 13 | 4 | <1 |
| March | 2 | 0 | 10 | 4 | <1 |
| April | 6 | <1 | 6 | 3 | <1 |
| May | 16 | 7 | <1 | 1 | 0 |
| June | 24 | 16 | 0 | <1 | 0 |
| July | 30 | 27 | 0 | <1 | 0 |
| August | 30 | 27 | 0 | <1 | 0 |
| September | 26 | 19 | <1 | <1 | 0 |
| October | 14 | 4 | 5 | 2 | 0 |
| November | <1 | 0 | 10 | 3 | <1 |
| December | 0 | 0 | 17 | 5 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 36% | 15% | 47% | 7.7–11.2°C |
| February | 8% | 36% | 16% | 48% | 9.8–16.3°C |
| March | 24% | 35% | 12% | 42% | 11.4–18.8°C |
| April | 46% | 23% | 7% | 27% | 16.1–22.7°C |
| May | 73% | 15% | 3% | 15% | 21.6–27.4°C |
| June | 90% | 7% | 2% | 4% | 27.2–32.2°C |
| July | 97% | 3% | <1% | <1% | 31.8–37.1°C |
| August | 97% | 3% | <1% | <1% | 31.6–36.2°C |
| September | 91% | 7% | 2% | 6% | 28.1–32.7°C |
| October | 71% | 14% | 6% | 17% | 20.3–27.3°C |
| November | 10% | 29% | 12% | 40% | 11.3–15.7°C |
| December | 0% | 36% | 16% | 47% | 7.1–10.2°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