Fort Atkinson Weather Records

Fort Atkinson, Wisconsin weather averages and records from 1941–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Fort Atkinson, Wisconsin was 103 °F which occurred on July 6, 2012.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Fort Atkinson, Wisconsin was -39 °F which occurred on February 3, 1996.
Lowest Temperatures: All-Time By Year
Fort Atkinson Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January 27.7 10.8 58 -33 1.5 10.7
February 31.6 13.8 72 -39 1.4 9.4
March 43.6 24.7 84 -21 2.0 4.1
April 56.9 36.2 90 -4 3.6 1.2
May 69.1 47.6 96 25 4.1 0.2
June 79.0 57.7 101 33 5.0 0.0
July 82.5 61.8 103 39 4.0 0.0
August 80.6 59.6 102 37 3.9 0.0
September 74.0 51.2 98 28 3.3 0.0
October 60.9 39.7 88 11 2.8 0.1
November 45.7 28.6 78 -14 2.2 2.1
December 33.2 17.9 67 -29 1.7 9.4
Entire year 57.2 37.6 103 -39 35.5 38.3
More Fort Atkinson Weather Records
1941–2024
Highest daily low 84 °F August 24, 1948
Lowest daily high -16 °F January 19, 1994
Greatest daily range
(Difference of high and low)
58 °F January 19, 1996
Greatest difference in daily high
over two conscutive days
43 °F Mar 9–10, 1987
Most daily precipitation 4.5 inches September 8, 1941
Most monthly precipitation 11.3 inches May 2004
Most yearly precipitation 47.1 inches 2018
Most yearly days with precipitation 143 2019
Earliest snow in season October 17 1952
Latest snow in season May 10 1990
Most daily snow 15.2 inches February 7, 2008
Most monthly snow 39.0 inches January 1979
Most yearly snow 98.4 inches 2008
Most snow in a winter 86.9 inches 2007–2008
Greatest snow accumulation 39.0 inches January 19, 1979
Earliest freeze September 16 1984
Earliest day ≥ 80 °F March 16 2012
Earliest day ≥ 90 °F April 16 2002
Earliest day ≥ 100 °F June 21 1988
Latest freeze May 27 1992
Latest day ≥ 80 °F October 25 2023
Latest day ≥ 90 °F September 29 1953
Latest day ≥ 100 °F August 21 1955
Most days in a year < 0 °F 44 1978
Most days in a year < 32 °F 171 1976
Most days in a year ≥ 80 °F 102 1970
Most days in a year ≥ 90 °F 47 1988
Most days in a year ≥ 100 °F 5 1988
Fort Atkinson Weather Streaks
Most consecutive days...
With precipitation 11 days Sep 12–22, 1987
Without precipitation 31 days Oct 8 – Nov 7, 1950
With snow 8 days Jan 6–13, 1999
High temperature at or
below freezing
52 days Dec 31, 1978 – Feb 20, 1979
High temperature ≥ 80 °F 41 days Jul 29 – Sep 7, 1969
High temperature ≥ 90 °F 11 days Jun 28 – Jul 8, 2012
High temperature ≥ 100 °F 3 days Jul 5–7, 2012
Plant Hardiness Zone
5A
Fort Atkinson is in plant hardiness zone 5A
based on average yearly minimum temperature from 1991–2020
Fort Atkinson Weather by Year
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Weather Station Details
Years Station Coordinates
1941–2024 Fort Atkinson location