Hamilton Weather Records

Hamilton, Montana weather averages and records from 1895–2024 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Hamilton, Montana was 105 °F which occurred on July 23, 1895.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Hamilton, Montana was -39 °F which occurred on February 4, 1899.
Lowest Temperatures: All-Time By Year
Hamilton Weather by Month
Averages based on the years 1991–2020
Month Average (°F) Record (°F) Average (inches)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧
January 37.3 19.5 65 -36 1.0
February 41.3 20.8 71 -39 1.0
March 50.7 26.2 82 -14 1.0
April 58.0 32.0 90 1 0.9
May 67.4 39.1 102 18 1.5
June 74.7 45.4 102 24 1.6
July 85.5 50.5 105 31 1.0
August 84.2 48.7 103 19 0.8
September 73.7 41.3 98 10 0.8
October 58.5 31.7 90 -5 0.9
November 44.4 24.1 76 -24 1.4
December 35.6 19.0 66 -31 1.4
Entire year 59.6 33.3 105 -39 13.1
More Hamilton Weather Records
1895–2024
Highest daily low 83 °F July 5, 1924
Lowest daily high -13 °F December 17, 1964
Greatest daily range
(Difference of high and low)		 64 °F May 6, 1903
Greatest difference in daily high
over two conscutive days		 49 °F Oct 29–30, 1935
Most daily precipitation 2.2 inches May 15, 1952
Most monthly precipitation 5.6 inches December 1964
Most yearly precipitation 20.1 inches 1980
Most yearly days with precipitation 140 1982
Earliest freeze August 16 1895
Earliest day ≥ 80 °F March 18 1941
Earliest day ≥ 90 °F April 18 1936
Earliest day ≥ 100 °F May 30 1936
Latest freeze July 7 1971
Latest day ≥ 80 °F October 29 1901
Latest day ≥ 90 °F October 1 1901
Latest day ≥ 100 °F August 24 1969
Most days in a year < 0 °F 27 1937
Most days in a year < 32 °F 189 2008
Most days in a year ≥ 80 °F 129 1901
Most days in a year ≥ 90 °F 47 1936
Most days in a year ≥ 100 °F 6 2003
Hamilton Weather Streaks
Most consecutive days...
With precipitation 18 days Dec 8–25, 1916
Without precipitation 125 days May 21 – Sep 22, 1924
High temperature at or
below freezing		 26 days Jan 26 – Feb 20, 1936
High temperature ≥ 80 °F 93 days Jun 28 – Sep 28, 1924
High temperature ≥ 90 °F 18 days Jul 6–23, 1960
High temperature ≥ 100 °F 4 days Jul 21–24, 1931
Plant Hardiness Zone
6A
Hamilton is in plant hardiness zone 6A
based on average yearly minimum temperature from 1991–2020
Hamilton Weather by Year
2024 2023 2022 2021 2020 2019 2018 2017 2016 2015
2014 2013 2012 2011 2010 2009 2008 2007 2006 2004
2003 2002 2001 2000 1999 1998 1997 1996 1995 1994
1993 1992 1991 1990 1989 1988 1987 1986 1985 1984
1983 1982 1981 1980 1979 1978 1977 1976 1975 1974
1973 1972 1971 1970 1969 1968 1967 1966 1965 1964
1963 1962 1961 1960 1959 1958 1957 1956 1955 1954
1953 1952 1951 1950 1949 1948 1947 1946 1945 1944
1943 1942 1941 1940 1939 1938 1937 1936 1935 1934
1933 1932 1931 1930 1929 1928 1924 1923 1922 1921
1920 1919 1918 1917 1916 1915 1914 1913 1912 1911
1910 1909 1908 1907 1906 1905 1904 1903 1902 1901
1900 1899 1898 1895
More Hamilton Weather
Average Weather by Day
Record High by Day
Record Low by Day
Average Temperature by Year
Average Temperature by Month
Average Rainfall By Month
Recent Weather Records
Compare Hamilton to
Weather Station Details
Years Station Coordinates
1895–2024 Hamilton location
© H Brothers Inc, 2021–2024
Contact us | Privacy policy