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Middlesex County, CT

Tuesday : a high of 60.9°F averaged over Middlesex County, CT, the coldest 29 September day in the county average since 2012, tied 7th coldest of 76 (with 1964) (county average from NOAA gridded data, 1951 to 2026).

Last updated . This page normally updates every day; the latest update is late.

High
60.9°F
Coldest since 2012
7th coldest of 76
Low
54.2°F
Warmest since 2025
22nd warmest of 76
Precipitation
0.39 in
Wettest since 2023
11th wettest of 76
Every 29 September high of the county average in Middlesex County, CT since 1951: 60.9°F in 2026; the highest is 81.9°F, in 2014.
2012: 60.6°F2014: 81.9°F2026: 60.9°F 2026 60.9°F 2014 81.9°F since 2012 1951 2026
  • Normal range, 62.3 to 76.5°F
Every year as a table

Every 29 September low of the county average in Middlesex County, CT since 1951: 54.2°F in 2026; the lowest is 31.5°F, in 1957.

YearHigh, °FLow, °F
202660.954.2
202580.858.5
202472.258.1
202368.249.5
202266.947.6
202169.749.2
202076.862.9
201976.556
20186249.8
201776.446
20166356.8
201579.654.6
201481.955.3
201372.247.6
201260.654.6
201175.562.7
201075.664.5
200970.650.8
200873.960.7
200775.454.8
200669.649.7
200572.347.6
200464.154.7
200370.452.3
200271.146.3
200165.746.7
200062.333.9
199973.958.5
199872.745.1
199767.749.7
199670.856.7
199570.140.1
199470.650.3
199364.743.9
199267.451.9
199160.235
19907652.5
198964.539
198874.439.5
198775.755.6
198667.452.9
198569.745
198454.442.5
19836842.4
198272.252.6
198166.439.7
198068.541.4
197973.651.7
197866.937.5
197771.650.9
197663.436.1
197565.544.3
19747357
197370.947.5
197265.948.2
19716956.9
197060.341.5
196966.944.1
196871.143.2
196771.558.9
19666449
196560.437.3
196460.948
196369.248.1
196259.650.9
196172.142.4
196067.456.1
195980.265.8
195863.537.9
195763.431.5
195661.347.2
195573.848.2
195476.748.7
195373.846.5
195275.443.8
195163.839.9

The month

September 2026 so far averaged 64.2°F in Middlesex County, CT, the warmest 1 to 29 September in the county average since 2025, 27th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).

The month in words
  • August 2026 averaged 72.2°F in Middlesex County, CT, the warmest August in the county average since 2022, 20th warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
  • Tuesday 29 September 2026: a low of 54.2°F averaged over Middlesex County, CT, the warmest 29 September night in the county average since 2025, 22nd warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
  • Tuesday 29 September 2026: 0.39 in of precipitation averaged over Middlesex County, CT, the wettest 29 September in the county average since 2023, 11th wettest of 76 (county average from NOAA gridded data, 1951 to 2026).
Days of the month without a value
0

Nearby

Hartford, CT 35.8 mi, the nearest city with its own station

County data for Connecticut use its eight historical counties, as NOAA's county data still do; the Census Bureau replaced them with nine planning regions in 2022.