Trenton Weather Records

Trenton, New Jersey weather averages and records from 1865–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Trenton, New Jersey was 106 °F which occurred on July 22, 2011.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Trenton, New Jersey was -16 °F which occurred on January 22, 1984.
Lowest Temperatures: All-Time By Year
Trenton Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January 40.0 24.1 73 -16 3.4 7.9
February 43.0 25.7 78 -14 2.8 8.6
March 51.1 32.5 88 0 4.1 4.9
April 63.2 42.0 93 11 3.6 0.5
May 72.6 51.4 99 31 3.7 0.0
June 81.5 60.9 100 38 4.6 0.0
July 86.4 66.4 106 46 4.7 0.0
August 84.3 64.6 105 39 4.2 0.0
September 77.4 57.4 101 34 4.1 0.0
October 65.7 45.7 94 21 3.8 0.1
November 54.8 36.1 83 9 3.3 0.5
December 44.7 29.0 76 -8 4.1 4.2
Entire year 63.8 44.7 106 -16 46.5 26.7
More Trenton Weather Records
1865–2024
Highest daily low 84 °F August 11, 1895
Lowest daily high 3 °F January 21, 1985
Greatest daily range
(Difference of high and low)
50 °F December 23, 2022
Greatest difference in daily high
over two conscutive days
48 °F Jan 6–7, 2014
Most daily precipitation 7.3 inches September 16, 1999
Most monthly precipitation 15.7 inches August 2011
Most yearly precipitation 67.5 inches 1996
Most yearly days with precipitation 152 1972
Earliest snow in season October 10 1979
Latest snow in season April 27 1967
Most daily snow 21.0 inches March 12, 1888
Most monthly snow 40.5 inches February 2010
Most yearly snow 60.0 inches 1996
Most snow in a winter 76.5 inches 1995–1996
Greatest snow accumulation 21.0 inches January 27, 2011
Earliest freeze October 7 1984
Earliest day ≥ 80 °F March 9 2016
Earliest day ≥ 90 °F April 16 2012
Latest freeze May 14 1996
Latest day ≥ 80 °F November 5 1961
Latest day ≥ 90 °F October 8 2007
Most days in a year < 0 °F 6 1984
Most days in a year < 32 °F 117 1985
Most days in a year ≥ 80 °F 116 2016
Most days in a year ≥ 90 °F 52 2010
Most days in a year ≥ 100 °F 4 1991
Trenton Weather Streaks
Most consecutive days...
With precipitation 12 days Jul 31 – Aug 11, 2003
Without precipitation 38 days Apr 16 – May 23, 1903
With snow 6 days Jan 20–25, 1948
High temperature at or
below freezing
17 days Jan 19 – Feb 4, 1961
High temperature ≥ 80 °F 67 days Jul 5 – Sep 9, 2015
High temperature ≥ 90 °F 11 days Jul 23 – Aug 2, 1999
High temperature ≥ 100 °F 3 days Jul 21–23, 2011
Plant Hardiness Zone
7B
Trenton is in plant hardiness zone 7B
based on average yearly minimum temperature from 1991–2020
Trenton Weather by Year
More Trenton Weather
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Weather Station Details
Years Station Coordinates
1999–2024 Trenton Mercer County Airport location
1977–1998 Trenton State College location
1913–1976 Trenton location
1865–1913 Trenton 2 location