Hartford Weather Records

Hartford, Connecticut weather averages and records from 1920–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Hartford, Connecticut was 103 °F which occurred on July 22, 2011.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Hartford, Connecticut was -26 °F which occurred on January 22, 1961.
Lowest Temperatures: All-Time By Year
Hartford Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January 35.4 18.8 72 -26 3.3 14.2
February 38.6 20.6 77 -24 3.1 14.8
March 47.4 28.2 89 -8 3.8 9.4
April 60.6 38.4 96 9 3.9 1.1
May 71.8 48.4 99 28 3.8 0.0
June 80.0 57.8 101 37 4.3 0.0
July 85.3 63.4 103 44 4.2 0.0
August 83.4 61.7 102 36 4.2 0.0
September 75.8 53.8 101 27 4.4 0.0
October 63.6 42.4 91 17 4.5 0.7
November 51.6 33.0 83 1 3.5 1.4
December 40.6 24.6 76 -14 4.1 10.2
Entire year 61.3 41.0 103 -26 47.0 49.8
More Hartford Weather Records
1920–2024
Highest daily low 78 °F August 3, 2006
Lowest daily high 0 °F February 15, 1943
Greatest daily range
(Difference of high and low)
53 °F April 27, 1962
Greatest difference in daily high
over two conscutive days
42 °F Feb 23–24, 2022
Most daily precipitation 7.7 inches August 19, 1955
Most monthly precipitation 21.9 inches August 1955
Most yearly precipitation 69.2 inches 2011
Most yearly days with precipitation 159 1972
Earliest snow in season October 10 1979
Latest snow in season May 9 1977
Most daily snow 24.0 inches January 12, 2011
Most monthly snow 54.3 inches January 2011
Most yearly snow 92.4 inches 1945
Most snow in a winter 107.1 inches 1995–1996
Greatest snow accumulation 38.0 inches January 13, 1996
Earliest freeze September 20 1979
Earliest day ≥ 80 °F March 9 2016
Earliest day ≥ 90 °F April 7 2010
Latest freeze May 20 2002
Latest day ≥ 80 °F November 2 1982
Latest day ≥ 90 °F October 7 1963
Most days in a year < 0 °F 14 1961
Most days in a year < 32 °F 143 1978
Most days in a year ≥ 80 °F 112 2016
Most days in a year ≥ 90 °F 39 2020
Most days in a year ≥ 100 °F 3 1991
Hartford Weather Streaks
Most consecutive days...
With precipitation 10 days Dec 24, 2021 – Jan 2, 2022
Without precipitation 33 days Oct 9 – Nov 10, 1924
With snow 7 days Dec 11–17, 1970
High temperature at or
below freezing
19 days Dec 12–30, 1989
High temperature ≥ 80 °F 46 days Jun 28 – Aug 12, 2022
High temperature ≥ 90 °F 10 days Jul 21–30, 2016
High temperature ≥ 100 °F 3 days Jul 19–21, 1991
Plant Hardiness Zone
6B
Hartford is in plant hardiness zone 6B
based on average yearly minimum temperature from 1991–2020
Facts About Hartford Weather
Hartford Weather by Year
More Hartford Weather
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Weather Station Details
Years Station Coordinates
1949–2024 Hartford International Airport location
1920–1948 Hartford Brainard Field location