Topics / Climate / United States / Massachusetts
Was September normal in Massachusetts?
September 2026 · 14 counties · data family: climatedata.dev
Warmer than normal
62.0°FStatewide average temperature, September 2026
- -0.4°F against the 1991–2020 normal of 62.4°F
- 35th warmest September of 132 since 1895
- Of 14 counties: 12 warmer, 2 near normal
- Furthest above normal: Dukes County (+0.1°F); furthest below: Essex County (-1.0°F)
- Precipitation 6.06 in, 143% of normal: wetter than normal
- +1 to +2°F 0
- within 1°F 13
- −1 to −2°F 1
- Much warmer than normal 0
- Warmer than normal 12
- Near normal 2
- Cooler than normal 0
- Much cooler than normal 0
Show the numbers (132 rows)
| Year | September average |
|---|---|
| 2026 | 62.0°F |
| 2025 | 63.1°F |
| 2024 | 63.0°F |
| 2023 | 64.6°F |
| 2022 | 62.4°F |
| 2021 | 64.8°F |
| 2020 | 62.8°F |
| 2019 | 62.0°F |
| 2018 | 65.2°F |
| 2017 | 65.1°F |
| 2016 | 64.6°F |
| 2015 | 66.2°F |
| 2014 | 62.3°F |
| 2013 | 60.8°F |
| 2012 | 61.9°F |
| 2011 | 64.9°F |
| 2010 | 64.6°F |
| 2009 | 59.8°F |
| 2008 | 62.4°F |
| 2007 | 63.3°F |
| 2006 | 60.3°F |
| 2005 | 64.8°F |
| 2004 | 62.4°F |
| 2003 | 62.6°F |
| 2002 | 64.4°F |
| 2001 | 61.9°F |
| 2000 | 60.2°F |
| 1999 | 64.3°F |
| 1998 | 63.0°F |
| 1997 | 60.5°F |
| 1996 | 61.1°F |
| 1995 | 59.1°F |
| 1994 | 59.8°F |
| 1993 | 60.8°F |
| 1992 | 60.2°F |
| 1991 | 59.4°F |
| 1990 | 60.3°F |
| 1989 | 61.3°F |
| 1988 | 59.2°F |
| 1987 | 60.4°F |
| 1986 | 58.4°F |
| 1985 | 61.4°F |
| 1984 | 58.2°F |
| 1983 | 63.7°F |
| 1982 | 60.6°F |
| 1981 | 59.2°F |
| 1980 | 61.7°F |
| 1979 | 59.8°F |
| 1978 | 57.3°F |
| 1977 | 60.2°F |
| 1976 | 58.8°F |
| 1975 | 58.1°F |
| 1974 | 60.0°F |
| 1973 | 60.3°F |
| 1972 | 60.9°F |
| 1971 | 63.8°F |
| 1970 | 61.3°F |
| 1969 | 61.0°F |
| 1968 | 61.9°F |
| 1967 | 59.6°F |
| 1966 | 58.4°F |
| 1965 | 60.4°F |
| 1964 | 59.0°F |
| 1963 | 56.7°F |
| 1962 | 57.9°F |
| 1961 | 66.3°F |
| 1960 | 60.0°F |
| 1959 | 63.7°F |
| 1958 | 60.1°F |
| 1957 | 61.8°F |
| 1956 | 56.9°F |
| 1955 | 59.5°F |
| 1954 | 58.6°F |
| 1953 | 62.0°F |
| 1952 | 61.6°F |
| 1951 | 60.7°F |
| 1950 | 57.3°F |
| 1949 | 59.1°F |
| 1948 | 61.5°F |
| 1947 | 61.2°F |
| 1946 | 62.2°F |
| 1945 | 63.7°F |
| 1944 | 61.8°F |
| 1943 | 59.4°F |
| 1942 | 61.1°F |
| 1941 | 61.8°F |
| 1940 | 59.0°F |
| 1939 | 60.3°F |
| 1938 | 58.4°F |
| 1937 | 59.1°F |
| 1936 | 60.3°F |
| 1935 | 58.5°F |
| 1934 | 62.8°F |
| 1933 | 61.4°F |
| 1932 | 60.7°F |
| 1931 | 63.6°F |
| 1930 | 64.0°F |
| 1929 | 61.8°F |
| 1928 | 57.6°F |
| 1927 | 60.3°F |
| 1926 | 58.5°F |
| 1925 | 60.5°F |
| 1924 | 58.0°F |
| 1923 | 61.4°F |
| 1922 | 61.3°F |
| 1921 | 64.0°F |
| 1920 | 61.5°F |
| 1919 | 60.0°F |
| 1918 | 56.8°F |
| 1917 | 56.1°F |
| 1916 | 60.2°F |
| 1915 | 63.3°F |
| 1914 | 59.6°F |
| 1913 | 57.9°F |
| 1912 | 59.1°F |
| 1911 | 58.6°F |
| 1910 | 59.8°F |
| 1909 | 59.2°F |
| 1908 | 61.6°F |
| 1907 | 60.7°F |
| 1906 | 62.0°F |
| 1905 | 58.7°F |
| 1904 | 58.9°F |
| 1903 | 60.4°F |
| 1902 | 59.5°F |
| 1901 | 61.3°F |
| 1900 | 62.4°F |
| 1899 | 58.6°F |
| 1898 | 62.4°F |
| 1897 | 59.0°F |
| 1896 | 58.8°F |
| 1895 | 62.0°F |
All 14 counties, September 2026
Record rank: 1 is the warmest September on record for that county.
| 1 | Dukes | 64.9°F | +0.1°F | 26 of 132 | Warmer than normal |
| 2 | Nantucket | 63.9°F | +0.1°F | 27 of 132 | Warmer than normal |
| 3 | Berkshire | 59.6°F | −0.1°F | 34 of 132 | Warmer than normal |
| 4 | Bristol | 64.1°F | −0.2°F | 33 of 132 | Warmer than normal |
| 5 | Hampden | 62.0°F | −0.3°F | 41 of 132 | Warmer than normal |
| 6 | Hampshire | 61.6°F | −0.3°F | 42 of 132 | Warmer than normal |
| 7 | Worcester | 61.3°F | −0.3°F | 35 of 132 | Warmer than normal |
| 8 | Barnstable | 63.7°F | −0.4°F | 34 of 132 | Warmer than normal |
| 9 | Franklin | 60.7°F | −0.4°F | 44 of 132 | Warmer than normal |
| 10 | Plymouth | 63.7°F | −0.4°F | 36 of 132 | Warmer than normal |
| 11 | Norfolk | 63.0°F | −0.6°F | 39 of 132 | Warmer than normal |
| 12 | Suffolk | 63.5°F | −0.7°F | 43 of 132 | Warmer than normal |
| 13 | Middlesex | 62.2°F | −0.9°F | 52 of 132 | Near normal |
| 14 | Essex | 61.9°F | −1.0°F | 53 of 132 | Near normal |
Get this data
This page's numbers, as JSON:
curl https://visualizedata.org/data/topics/climate/us-ma.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-ma.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.
- 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?