Topics / Climate / United States / Connecticut
Was September normal in Connecticut?
September 2026 · 0 counties · data family: climatedata.dev
Warmer than normal
63.1°FStatewide average temperature, September 2026
- -0.3°F against the 1991–2020 normal of 63.4°F
- 41st warmest September of 132 since 1895
- Precipitation 6.01 in, 136% of normal: wetter than normal
- +1 to +2°F 0
- within 1°F 0
- −1 to −2°F 0
- no data
- Much warmer than normal 0
- Warmer than normal 0
- Near normal 0
- Cooler than normal 0
- Much cooler than normal 0
Show the numbers (132 rows)
| Year | September average |
|---|---|
| 2026 | 63.1°F |
| 2025 | 64.6°F |
| 2024 | 63.4°F |
| 2023 | 65.1°F |
| 2022 | 63.6°F |
| 2021 | 65.2°F |
| 2020 | 63.5°F |
| 2019 | 63.2°F |
| 2018 | 66.1°F |
| 2017 | 66.0°F |
| 2016 | 66.2°F |
| 2015 | 67.8°F |
| 2014 | 63.6°F |
| 2013 | 61.4°F |
| 2012 | 63.3°F |
| 2011 | 66.4°F |
| 2010 | 65.6°F |
| 2009 | 61.0°F |
| 2008 | 63.3°F |
| 2007 | 64.6°F |
| 2006 | 61.2°F |
| 2005 | 66.0°F |
| 2004 | 63.8°F |
| 2003 | 63.3°F |
| 2002 | 64.8°F |
| 2001 | 62.5°F |
| 2000 | 61.2°F |
| 1999 | 64.6°F |
| 1998 | 64.2°F |
| 1997 | 61.6°F |
| 1996 | 62.3°F |
| 1995 | 60.5°F |
| 1994 | 61.5°F |
| 1993 | 61.8°F |
| 1992 | 61.2°F |
| 1991 | 60.8°F |
| 1990 | 61.3°F |
| 1989 | 62.3°F |
| 1988 | 60.4°F |
| 1987 | 61.2°F |
| 1986 | 60.2°F |
| 1985 | 62.6°F |
| 1984 | 58.8°F |
| 1983 | 64.4°F |
| 1982 | 61.7°F |
| 1981 | 60.6°F |
| 1980 | 63.4°F |
| 1979 | 61.2°F |
| 1978 | 58.8°F |
| 1977 | 61.8°F |
| 1976 | 59.8°F |
| 1975 | 58.5°F |
| 1974 | 60.7°F |
| 1973 | 61.8°F |
| 1972 | 62.6°F |
| 1971 | 65.0°F |
| 1970 | 62.6°F |
| 1969 | 62.1°F |
| 1968 | 63.0°F |
| 1967 | 60.6°F |
| 1966 | 59.8°F |
| 1965 | 62.1°F |
| 1964 | 61.0°F |
| 1963 | 57.9°F |
| 1962 | 58.6°F |
| 1961 | 67.7°F |
| 1960 | 61.1°F |
| 1959 | 64.9°F |
| 1958 | 60.8°F |
| 1957 | 62.2°F |
| 1956 | 58.1°F |
| 1955 | 60.8°F |
| 1954 | 59.9°F |
| 1953 | 62.8°F |
| 1952 | 62.2°F |
| 1951 | 61.1°F |
| 1950 | 58.3°F |
| 1949 | 59.8°F |
| 1948 | 62.7°F |
| 1947 | 61.9°F |
| 1946 | 63.4°F |
| 1945 | 64.6°F |
| 1944 | 63.2°F |
| 1943 | 61.2°F |
| 1942 | 61.8°F |
| 1941 | 62.6°F |
| 1940 | 59.7°F |
| 1939 | 61.0°F |
| 1938 | 58.7°F |
| 1937 | 59.6°F |
| 1936 | 62.0°F |
| 1935 | 59.0°F |
| 1934 | 63.7°F |
| 1933 | 62.9°F |
| 1932 | 62.0°F |
| 1931 | 65.1°F |
| 1930 | 65.0°F |
| 1929 | 63.0°F |
| 1928 | 58.4°F |
| 1927 | 61.2°F |
| 1926 | 59.7°F |
| 1925 | 61.7°F |
| 1924 | 58.1°F |
| 1923 | 62.5°F |
| 1922 | 62.4°F |
| 1921 | 65.5°F |
| 1920 | 62.6°F |
| 1919 | 61.0°F |
| 1918 | 57.6°F |
| 1917 | 57.3°F |
| 1916 | 61.4°F |
| 1915 | 64.1°F |
| 1914 | 61.1°F |
| 1913 | 59.1°F |
| 1912 | 60.6°F |
| 1911 | 60.6°F |
| 1910 | 61.6°F |
| 1909 | 60.4°F |
| 1908 | 63.1°F |
| 1907 | 62.5°F |
| 1906 | 63.6°F |
| 1905 | 60.2°F |
| 1904 | 60.0°F |
| 1903 | 60.7°F |
| 1902 | 60.8°F |
| 1901 | 62.1°F |
| 1900 | 64.7°F |
| 1899 | 59.2°F |
| 1898 | 63.6°F |
| 1897 | 60.1°F |
| 1896 | 59.7°F |
| 1895 | 63.4°F |
NOAA publishes no county series for Connecticut that match the 9 counties on the map. See what this can't tell you, below.
Get this data
This page's numbers, as JSON:
curl https://visualizedata.org/data/topics/climate/us-ct.jsonThe climatedata.dev API it comes from (live, no key; every month since 1895 with its normal, anomaly and rank):
curl "https://api.climatedata.dev/v1/us-climate/tavg/us-ct.json"What this can't tell you
- A statewide average is not the average of its counties: NOAA computes it from its own grid, weighted by area.
- NOAA still publishes 8 county series here (FIPS 09001, 09003, 09005, 09007, 09009, 09011, 09013, 09015) for counties that no longer exist on the Census map; they are left out.
- No NOAA series for 9 of the registry's counties here (Capitol Planning Region, Greater Bridgeport Planning Region, Lower Connecticut River Valley Planning Region, Naugatuck Valley Planning Region, Northeastern Connecticut Planning Region, Northwest Hills Planning Region…).
- The most recent months are preliminary and NOAA revises them in the next release.
How the answer is decided
Each month is ranked against the same month in every year on record (since 1895 for most places). The top tenth of the record is 'much warmer than normal', the top third 'warmer', the middle third 'near normal'. Counties are coloured by the same five words.
Sources
- climatedata.dev us-climate, version 2026-10-25.6c7474e6d8 (U.S. public domain)
- NOAA Monthly U.S. Climate Divisional Database (nClimDiv), statewide and national files (U.S. public domain)
- climatedata.dev county-climate, version 2026-10-25.b4bbb5298a (U.S. public domain)
- U.S. Census Bureau TIGERweb, counties (generalised) (U.S. public domain)
- Built 2026-10-26. Download every county's answer (JSON)
Every topic for one county: How's Hennepin County?