Lebanon Weather Records

Lebanon, New Hampshire weather averages and records from 1931–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Lebanon, New Hampshire was 101 °F which occurred on August 1, 1933.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Lebanon, New Hampshire was -38 °F which occurred on February 16, 1943.
Lowest Temperatures: All-Time By Year
Lebanon Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧
January 30.1 9.4 68 -30 2.2
February 33.6 11.0 68 -38 2.2
March 42.8 20.6 85 -28 2.6
April 56.6 31.7 91 2 2.9
May 69.4 43.6 96 20 3.5
June 77.3 52.4 98 31 4.3
July 82.7 57.8 100 38 4.3
August 81.0 56.1 101 30 3.7
September 73.5 48.8 96 20 3.4
October 59.5 37.6 91 13 4.2
November 47.0 28.0 80 -13 2.7
December 35.2 17.6 69 -36 3.0
Entire year 57.5 34.7 101 -38 39.1
More Lebanon Weather Records
1931–2024
Highest daily low 75 °F August 11, 2021
Lowest daily high -8 °F February 16, 1943
Greatest daily range
(Difference of high and low)
63 °F March 7, 1948
Greatest difference in daily high
over two conscutive days
43 °F Feb 8–9, 1951
Most daily precipitation 4.7 inches September 16, 1999
Most monthly precipitation 10.5 inches October 2005
Most yearly precipitation 51.0 inches 2006
Most yearly days with precipitation 173 2011
Earliest freeze August 31 1965
Earliest day ≥ 70 °F March 9 2016
Earliest day ≥ 80 °F March 18 2012
Earliest day ≥ 90 °F April 16 2012
Latest freeze June 8 1932
Latest day ≥ 70 °F November 22 1931
Latest day ≥ 80 °F November 3 1950
Latest day ≥ 90 °F October 17 1947
Most days in a year < 0 °F 47 1934
Most days in a year < 32 °F 186 1956
Most days in a year ≥ 80 °F 94 1947
Most days in a year ≥ 90 °F 31 1949
Most days in a year ≥ 100 °F 1 1953
Lebanon Weather Streaks
Most consecutive days...
With precipitation 14 days Jun 19 – Jul 2, 2006
Without precipitation 24 days Sep 4–27, 2020
High temperature at or
below freezing
34 days Dec 14, 1969 – Jan 16, 1970
High temperature ≥ 80 °F 27 days Jun 27 – Jul 23, 2013
High temperature ≥ 90 °F 8 days Aug 11–18, 2002
Plant Hardiness Zone
5A
Lebanon is in plant hardiness zone 5A
based on average yearly minimum temperature from 1991–2020
Lebanon Weather by Year
More Lebanon Weather
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Weather Station Details
Years Station Coordinates
1962–2024 Lebanon Municipal Airport location
1931–1961 West Lebanon location