Merrill Weather Records

Merrill, Wisconsin weather averages and records from 1905–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Merrill, Wisconsin was 110 °F which occurred on July 14, 1936.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Merrill, Wisconsin was -48 °F which occurred on January 12, 1909.
Lowest Temperatures: All-Time By Year
Merrill Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January 22.1 3.4 57 -48 1.2 11.8
February 26.6 5.1 65 -42 1.1 10.6
March 38.7 17.0 86 -35 1.7 7.0
April 52.9 29.6 92 -5 2.9 5.4
May 66.6 42.6 104 18 3.7 0.1
June 76.1 53.2 104 28 4.6 0.0
July 80.1 57.1 110 33 3.8 0.0
August 77.9 54.6 101 30 4.1 0.0
September 69.8 46.3 97 18 3.9 0.0
October 55.3 34.5 89 4 3.2 0.9
November 39.7 23.1 75 -15 2.0 5.6
December 27.4 11.3 62 -31 1.5 11.8
Entire year 52.9 31.6 110 -48 33.7 53.2
More Merrill Weather Records
1905–2024
Highest daily low 78 °F May 31, 1934
Lowest daily high -20 °F January 18, 1962
Greatest daily range
(Difference of high and low)
68 °F March 8, 1913
Greatest difference in daily high
over two conscutive days
47 °F Feb 28–29, 2024
Most daily precipitation 5.9 inches July 23, 1912
Most monthly precipitation 15.3 inches July 1912
Most yearly precipitation 46.5 inches 1912
Most yearly days with precipitation 181 2017
Earliest snow in season September 22 1913
Latest snow in season May 29 1947
Most daily snow 21.2 inches January 6, 1929
Most monthly snow 53.2 inches February 2019
Most yearly snow 108.0 inches 2019
Most snow in a winter 98.8 inches 1921–1922
Greatest snow accumulation 38.0 inches March 3, 2019
Earliest freeze August 24 1977
Earliest day ≥ 70 °F March 8 2000
Earliest day ≥ 80 °F March 23 1910
Earliest day ≥ 90 °F April 28 1952
Earliest day ≥ 100 °F May 30 1934
Latest freeze June 29 1923
Latest day ≥ 70 °F November 17 1953
Latest day ≥ 80 °F October 22 1947
Latest day ≥ 90 °F September 23 1937
Latest day ≥ 100 °F August 15 1936
Most days in a year < 0 °F 67 1978
Most days in a year < 32 °F 206 1917
Most days in a year ≥ 80 °F 93 1933
Most days in a year ≥ 90 °F 37 1937
Most days in a year ≥ 100 °F 8 1936
Most days in a year ≥ 110 °F 2 1936
Merrill Weather Streaks
Most consecutive days...
With precipitation 13 days Dec 4–16, 2017
Without precipitation 45 days Nov 21, 1943 – Jan 4, 1944
With snow 11 days Dec 6–16, 2017
High temperature at or
below freezing
75 days Dec 6, 2013 – Feb 18, 2014
High temperature ≥ 80 °F 42 days Jul 1 – Aug 11, 1916
High temperature ≥ 90 °F 18 days Jun 20 – Jul 7, 1921
High temperature ≥ 100 °F 4 days Jul 11–14, 1936
Plant Hardiness Zone
4B
Merrill is in plant hardiness zone 4B
based on average yearly minimum temperature from 1991–2020
Merrill Weather by Year
More Merrill Weather
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Weather Station Details
Years Station Coordinates
1905–2024 Merrill location