Clinton CDP, Connecticut

Official LSAD Designation: Clinton CDP • Census GEOID: 0915420 • Lower Connecticut River Valley Planning Region

Climate Normals & Weather Observations

30-year climate normals (1991–2020) and weather observations for Clinton CDP.

Reference Weather Station: NEW HAVEN TWEED AP, CT US (ID: USW00014758) • Located 18.6 miles from community center • Elevation: 0.9 m

Month	Average High (°F)	Average Low (°F)	Mean Temp (°F)	Precipitation (in)
January	38.1°	23.0°	30.5°	2.72"
February	40.2°	23.9°	32.0°	2.84"
March	47.0°	30.1°	38.5°	3.66"
April	57.8°	39.3°	48.5°	4.19"
May	67.7°	49.4°	58.5°	3.54"
June	76.4°	59.3°	67.9°	3.47"
July	82.1°	65.7°	73.9°	3.36"
August	81.0°	64.7°	72.9°	3.55"
September	74.7°	57.3°	66.0°	4.03"
October	63.8°	45.5°	54.7°	3.78"
November	53.4°	35.9°	44.7°	3.12"
December	43.7°	28.9°	36.3°	3.53"

2010–2025, completed calendar years only.

NOAA station NEW HAVEN TWEED AP, CT US (ID: USW00014758) • 18.6 miles from community center .

This is the same reference station used for monthly normals.

Show annual mean of daily highs and lows

Annual mean Annual mean of daily highs Annual mean of daily lows

Annual temperature data table (°F)

Annual station temperatures, 2010–2025. Unavailable means no reported value.
Year	Annual mean (°F)	Annual mean of daily highs (°F)	Annual mean of daily lows (°F)
2010	54.1	62.5	45.7
2011	53.6	61.8	45.3
2012	55.1	63.3	46.9
2013	52.6	60.9	44.3
2014	51.9	60.3	43.5
2015	51.5	60.4	42.6
2016	52.9	61.8	44.1
2017	52.6	60.7	44.4
2018	53.5	61.3	45.6
2019	53.7	61.9	45.4
2020	55.0	63.3	46.7
2021	54.9	63.1	46.7
2022	54.9	63.6	46.2
2023	55.8	64.3	47.3
2024	56.0	64.3	47.8
2025	Unavailable	Unavailable	Unavailable

Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.