September
September · May · October
United States · 1991–2020
September leads for comfortable weather in Bridgewater: typically 27.1°C by day, 13.5°C at night, with 126 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · October
August · June · July
October · April · May
The weakest month is January, scoring 7 against September’s 69 — days reach only 10.3°C, 14° below the 24°C the score treats as ideal, and nights drop to -3.7°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 | 10.3°C | -3.7°C | 108 mm | 7.1 | 9 h 59 | 7 | Strong coverage |
| February | 13.2°C | -1.8°C | 95 mm | 6.6 | 10 h 50 | 22 | Strong coverage |
| March | 16.7°C | 1.4°C | 104 mm | 8.4 | 11 h 51 | 37 | Strong coverage |
| April | 22°C | 6.1°C | 121 mm | 8 | 13 h 03 | 61 | Strong coverage |
| May | 25.6°C | 10.8°C | 127 mm | 9.6 | 14 h 02 | 68 | Strong coverage |
| June | 29.1°C | 15.6°C | 131 mm | 10.1 | 14 h 34 | 62 | Strong coverage |
| July | 30.9°C | 17.5°C | 135 mm | 11.3 | 14 h 21 | 51 | Strong coverage |
| August | 30.2°C | 17°C | 132 mm | 9.8 | 13 h 30 | 56 | Strong coverage |
| September | 27.1°C | 13.5°C | 126 mm | 8.8 | 12 h 22 | 69 | Strong coverage |
| October | 21.9°C | 6.5°C | 102 mm | 6.5 | 11 h 13 | 65 | Strong coverage |
| November | 16.7°C | 0.9°C | 104 mm | 6.6 | 10 h 14 | 37 | Strong coverage |
| December | 11.7°C | -2.2°C | 118 mm | 7.9 | 9 h 45 | 12 | 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 | 30.0°C24 Jan 1927 | -23.9°C21 Jan 1985 | 114 mm27 Jan 1921 | 260 mm1906 · driest 5 mm in 2000 | 124 |
| February | 27.2°C13 Feb 2017 | -21.7°C18 Feb 1958 | 103 mm13 Feb 1966 | 294 mm1903 · driest 5 mm in 1951 | 126 |
| March | 35.0°C29 Mar 1907 | -15.0°C4 Mar 1943 | 114 mm4 Mar 1979 | 322 mm1899 · driest 13 mm in 2006 | 125 |
| April | 34.4°C18 Apr 1896 | -10.0°C6 Apr 2000 | 97 mm24 Apr 2018 | 277 mm1957 · driest 7 mm in 1986 | 125 |
| May | 37.2°C26 May 2004 | -4.4°C2 May 2000 | 184 mm21 May 1901 | 400 mm2018 · driest 9 mm in 1953 | 126 |
| June | 38.9°C29 Jun 1936 | 0.6°C8 Jun 2000 | 116 mm15 Jun 1969 | 354 mm1957 · driest 16 mm in 1993 | 127 |
| July | 41.1°C28 Jul 1952 | 6.7°C14 Jul 1994 | 199 mm15 Jul 1916 | 620 mm1916 · driest 13 mm in 1977 | 123 |
| August | 39.4°C19 Aug 1925 | 2.8°C23 Aug 2000 | 208 mm13 Aug 1940 | 635 mm1920 · driest 5 mm in 1943 | 124 |
| September | 39.4°C7 Sep 1925 | -5.0°C28 Sep 2000 | 189 mm8 Sep 2004 | 463 mm2004 · driest 3 mm in 1940 | 124 |
| October | 35.6°C5 Oct 1954 | -8.3°C12 Oct 2000 | 168 mm23 Oct 1900 | 331 mm1918 · driest 0 mm in 2000 | 128 |
| November | 28.9°C18 Nov 1958 | -14.4°C25 Nov 1950 | 127 mm6 Nov 1977 | 258 mm1992 · driest 5 mm in 1910 | 130 |
| December | 28.9°C4 Dec 1926 | -20.6°C29 Dec 1894 | 140 mm28 Dec 1958 | 325 mm2018 · driest 0 mm in 1949 | 127 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | <1 | 0 | 21 | 3 | <1 |
| February | <1 | 0 | 19 | 3 | <1 |
| March | 3 | <1 | 12 | 3 | <1 |
| April | 9 | 1 | 3 | 4 | 0 |
| May | 19 | 4 | <1 | 4 | 0 |
| June | 24 | 13 | 0 | 4 | 0 |
| July | 28 | 21 | 0 | 4 | 0 |
| August | 28 | 17 | 0 | 4 | 0 |
| September | 22 | 7 | <1 | 4 | 0 |
| October | 9 | <1 | 4 | 3 | 0 |
| November | 1 | 0 | 14 | 3 | <1 |
| December | <1 | 0 | 19 | 4 | <1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 4% | 26% | 12% | 26% | 7.2–13.1°C |
| February | 9% | 27% | 12% | 30% | 9.0–15.5°C |
| March | 26% | 29% | 13% | 32% | 14.0–19.8°C |
| April | 54% | 26% | 12% | 28% | 19.3–24.5°C |
| May | 67% | 30% | 12% | 37% | 23.7–28.2°C |
| June | 66% | 34% | 14% | 43% | 27.2–31.5°C |
| July | 63% | 37% | 15% | 48% | 29.1–32.6°C |
| August | 66% | 34% | 13% | 42% | 28.3–32.0°C |
| September | 73% | 26% | 11% | 26% | 25.1–29.7°C |
| October | 59% | 20% | 9% | 21% | 19.9–24.1°C |
| November | 25% | 21% | 10% | 20% | 14.2–18.7°C |
| December | 5% | 25% | 12% | 27% | 8.4–14.1°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