September
September · May · August
United States · 1991–2020
September leads for comfortable weather in Bridgeport: typically 27.2°C by day, 9°C at night, with 44 mm of rain. Based on measured 1991–2020 NOAA station history.
September · May · August
August · July · June
October · September · April
The weakest month is January, scoring 5 against September’s 76 — days reach only 5.4°C, 19° below the 24°C the score treats as ideal, and nights drop to -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 | 5.4°C | -9°C | 9 mm | 2.4 | 9 h 28 | 5 | Strong coverage |
| February | 7.3°C | -7.7°C | 13 mm | 2.9 | 10 h 32 | 5 | Strong coverage |
| March | 13.5°C | -3.2°C | 23 mm | 3.6 | 11 h 48 | 32 | Strong coverage |
| April | 17.9°C | 1.1°C | 55 mm | 6.1 | 13 h 16 | 49 | Strong coverage |
| May | 23°C | 7°C | 84 mm | 8.5 | 14 h 30 | 71 | Strong coverage |
| June | 29.6°C | 12.5°C | 74 mm | 7.2 | 15 h 11 | 68 | Strong coverage |
| July | 33.4°C | 16.1°C | 60 mm | 5.6 | 14 h 55 | 61 | Strong coverage |
| August | 32°C | 14.7°C | 53 mm | 4.7 | 13 h 51 | 69 | Strong coverage |
| September | 27.2°C | 9°C | 44 mm | 4.3 | 12 h 25 | 76 | Strong coverage |
| October | 19.1°C | 1.6°C | 31 mm | 4.2 | 11 h 01 | 59 | Strong coverage |
| November | 11.1°C | -4.7°C | 15 mm | 2.6 | 9 h 46 | 22 | Strong coverage |
| December | 5.4°C | -8.9°C | 12 mm | 2.2 | 9 h 10 | 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 | 23.9°C26 Jan 1982 | -37.2°C19 Jan 1963 | 28 mm9 Jan 1939 | 39 mm1976 · driest 0 mm in 1901 | 123 |
| February | 26.7°C11 Feb 1962 | -43.9°C12 Feb 1899 | 26 mm19 Feb 1912 | 31 mm1912 · driest 0 mm in 1977 | 124 |
| March | 31.1°C29 Mar 1943 | -32.8°C11 Mar 1948 | 51 mm13 Mar 2021 | 89 mm2019 · driest 0 mm in 1904 | 125 |
| April | 35.0°C30 Apr 1992 | -23.9°C2 Apr 1975 | 46 mm30 Apr 2000 | 148 mm1900 · driest 3 mm in 1992 | 125 |
| May | 37.2°C30 May 2002 | -9.4°C1 May 1911 | 83 mm28 May 1978 | 264 mm2015 · driest 6 mm in 1940 | 126 |
| June | 41.7°C28 Jun 2018 | -2.2°C2 Jun 1969 | 88 mm16 Jun 1911 | 253 mm1947 · driest 2 mm in 2017 | 125 |
| July | 43.9°C15 Jul 1902 | 1.1°C8 Jul 1952 | 102 mm4 Jul 2010 | 211 mm1982 · driest 7 mm in 1933 | 124 |
| August | 42.8°C21 Aug 1898 | -1.1°C25 Aug 1910 | 66 mm1 Aug 2006 | 142 mm2002 · driest 0 mm in 1970 | 124 |
| September | 39.4°C1 Sep 1899 | -10.0°C27 Sep 1908 | 106 mm30 Sep 2014 | 160 mm2014 · driest 0 mm in 1908 | 123 |
| October | 36.1°C1 Oct 1898 | -21.7°C27 Oct 2020 | 74 mm19 Oct 1908 | 90 mm1998 · driest 0 mm in 1907 | 124 |
| November | 27.2°C10 Nov 1958 | -28.3°C13 Nov 1916 | 42 mm7 Nov 1944 | 62 mm1922 · driest 0 mm in 1904 | 124 |
| December | 23.3°C6 Dec 1939 | -41.1°C22 Dec 1989 | 43 mm6 Dec 1924 | 76 mm1924 · driest 0 mm in 2002 | 123 |
| Month | Days 25°C+ | Days 30°C+ | Frost nights | Heavy rain (10 mm+) | Snow days |
|---|---|---|---|---|---|
| January | 0 | 0 | 30 | <1 | 2 |
| February | 0 | 0 | 27 | <1 | 3 |
| March | 1 | 0 | 24 | <1 | 2 |
| April | 5 | <1 | 12 | 2 | 1 |
| May | 13 | 4 | 2 | 3 | <1 |
| June | 25 | 15 | 0 | 3 | 0 |
| July | 30 | 25 | 0 | 2 | 0 |
| August | 30 | 24 | 0 | 2 | 0 |
| September | 22 | 11 | <1 | 1 | <1 |
| October | 7 | 1 | 12 | 1 | <1 |
| November | <1 | 0 | 26 | <1 | 2 |
| December | 0 | 0 | 30 | <1 | 3 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | <1% | 7% | <1% | 2% | 0.5–8.7°C |
| February | 3% | 9% | <1% | 5% | 1.7–11.3°C |
| March | 15% | 12% | 2% | 7% | 8.0–15.7°C |
| April | 38% | 19% | 6% | 18% | 14.8–20.4°C |
| May | 57% | 26% | 8% | 31% | 19.7–25.3°C |
| June | 73% | 24% | 8% | 25% | 25.1–31.6°C |
| July | 80% | 20% | 6% | 16% | 29.9–34.9°C |
| August | 84% | 16% | 4% | 11% | 29.5–33.9°C |
| September | 79% | 14% | 4% | 9% | 23.8–29.3°C |
| October | 53% | 11% | 3% | 6% | 16.5–22.8°C |
| November | 12% | 7% | <1% | 2% | 7.9–14.8°C |
| December | <1% | 8% | <1% | 3% | 1.2–8.7°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