Bozeman September 15 Weather Records

Daily averages and all-time records for weather in Bozeman, Montana for the date of September 15.
September 15 All-Time Records
1892–2024
Highest temperature 92 °F 2000
Lowest temperature 27 °F 1970
Lowest daily high 40 °F 1973
Highest daily low 58 °F 1990
Most precipitation 1.09 inches 1933
Most snow 1.5 inches 1973
September 15 Average Weather
1991–2020 1
Average high 72.8 °F
Average low 42.7 °F
Chance precipitation 30.2%
Chance snow 0.7%
Bozeman September 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 75 39 0.00 0.0
2022 71 42 0.00 0.0
2021 78 44 0.00 0.0
2020 85 46 0.00 0.0
2019 87 52 0.00 0.0
2018 70 45 0.00 0.0
2017 44 38 0.67 0.0
2016 62 41 0.07 0.0
2015 77 47 0.49 0.0
2014 75 39 0.00 0.0
2013 70 49 0.00 0.0
2012 81 45 0.00 0.0
2011 75 40 0.00 0.0
2010 68 41 0.00 0.0
2009 82 52 0.00 0.0
2008 80 41 0.00 0.0
2007 81 41 0.00 0.0
2006 60 45 0.24 0.0
2005 73 n/a 0.00 0.0
2004 64 34 0.05 0.0
2003 75 45 0.00 0.0
2002 85 52 0.00 0.0
2001 70 41 0.00 0.0
2000 92 52 0.00 0.0
1999 75 38 0.00 0.0
1998 84 47 0.00 0.0
1997 81 51 0.03 0.0
1996 75 42 0.10 0.0
1995 n/a n/a n/a n/a
1994 69 48 0.00 0.0
1993 64 n/a 0.00 0.0
1992 71 44 0.00 0.0
1991 61 40 0.11 0.0
1990 84 58 0.00 0.0
1989 81 43 0.00 0.0
1988 77 42 0.00 0.0
1987 83 49 0.00 0.0
1986 57 42 0.06 0.0
1985 68 45 0.08 0.0
1984 73 43 0.00 0.0
1983 70 39 0.00 0.0
1982 42 32 0.00 0.0
1981 79 45 0.00 0.0
1980 66 48 0.01 0.0
1979 85 40 0.00 0.0
1978 73 37 0.00 0.0
1977 78 45 0.73 0.0
1976 73 43 0.00 0.0
1975 78 44 0.00 0.0
1974 76 40 0.00 0.0
1973 40 29 0.13 1.5
1972 74 38 0.00 0.0
1971 58 30 0.00 0.0
1970 59 27 0.00 0.0
1969 63 35 0.00 0.0
1968 63 38 0.18 0.0
1967 68 37 0.00 0.0
1966 57 36 0.66 0.0
1965 56 30 0.73 1.1
1964 69 43 0.00 0.0
1963 59 40 0.04 0.0
1962 72 44 0.00 0.0
1961 79 40 0.00 0.0
1960 76 43 0.00 0.0
1959 73 50 0.00 0.0
1958 61 40 0.03 0.0
1957 73 48 0.00 0.0
1956 79 47 0.00 0.0
1955 73 43 0.06 0.0
1954 70 51 0.00 0.0
1953 82 49 0.00 0.0
1952 76 35 0.00 0.0
1951 67 34 0.00 0.0
1950 46 n/a 0.10 0.0
1949 n/a 50 n/a n/a
1948 84 54 0.00 n/a
1947 62 34 0.00 n/a
1946 82 57 0.00 n/a
1945 71 45 0.21 n/a
1944 59 32 0.00 n/a
1943 67 41 0.00 n/a
1942 68 44 0.00 n/a
1941 55 36 0.20 n/a
1940 68 39 0.00 n/a
1939 63 39 0.00 n/a
1938 77 42 0.00 n/a
1937 77 49 0.00 n/a
1936 52 27 0.00 n/a
1935 80 51 0.09 n/a
1934 73 31 0.00 n/a
1933 65 37 1.09 n/a
1932 76 44 0.00 n/a
1931 68 38 0.00 n/a
1930 71 42 0.00 n/a
1929 74 37 0.16 n/a
1928 74 45 0.00 n/a
1927 62 30 0.00 n/a
1926 75 39 0.00 n/a
1925 73 43 0.00 n/a
1924 82 43 0.00 n/a
1923 74 45 0.00 n/a
1922 71 47 0.00 n/a
1921 45 37 0.00 n/a
1920 75 31 0.00 n/a
1919 68 40 0.00 n/a
1918 58 38 0.00 n/a
1917 59 40 0.07 n/a
1916 68 30 0.00 n/a
1915 61 38 0.00 n/a
1914 45 32 0.51 n/a
1913 63 43 0.00 n/a
1912 47 30 0.00 n/a
1911 69 43 0.00 n/a
1910 81 52 0.00 n/a
1909 73 42 0.00 n/a
1908 79 45 0.00 n/a
1907 72 35 0.00 n/a
1906 52 37 0.32 n/a
1905 67 37 0.00 n/a
1904 72 41 0.00 n/a
1903 47 28 0.04 0.2
1902 71 39 0.00 n/a
1901 57 37 0.00 n/a
1900 50 37 0.00 n/a
1899 n/a n/a n/a n/a
1898 67 40 0.00 n/a
1897 60 41 0.00 n/a
1896 65 37 0.00 n/a
1895 66 35 0.00 n/a
1894 59 39 0.00 n/a
1893 n/a n/a n/a n/a
1892 81 42 0.00 n/a
What's the all-time high for Bozeman on 9/15?
For the date of Sep 15, the highest temperature ever reached in Bozeman history is 92 °F which happened in 2000.
Highest Temperatures in Bozeman on September 15
Rank Temperature Year
1 92 °F 2000
2 87 °F 2019
3 85 °F 2002
3 85 °F 2020
3 85 °F 1979
6 84 °F 1998
6 84 °F 1990
6 84 °F 1948
9 83 °F 1987
10 82 °F 1953
10 82 °F 1946
10 82 °F 1924
10 82 °F 2009
What's the all-time low for Bozeman on 9/15?
For the date of Sep 15, the lowest temperature ever reached in Bozeman history is 27 °F which has happened 2 times, most recently in 1970.
Lowest Temperatures in Bozeman on September 15
Rank Temperature Year
1 27 °F 1936
1 27 °F 1970
3 28 °F 1903
4 29 °F 1973
5 30 °F 1912
5 30 °F 1965
5 30 °F 1971
5 30 °F 1916
5 30 °F 1927
10 31 °F 1934
10 31 °F 1920
Lowest High Temperatures in Bozeman on September 15
Rank Temperature Year
1 40 °F 1973
2 42 °F 1982
3 44 °F 2017
4 45 °F 1914
4 45 °F 1921
6 46 °F 1950
7 47 °F 1903
7 47 °F 1912
9 50 °F 1900
10 52 °F 1906
10 52 °F 1936
What's the most it has ever rained in Bozeman on 9/15?
For the date of Sep 15, the most precipitation ever recorded in Bozeman history is 1.09 inches which happened in 1933.
All-Time Most Precipitation in Bozeman on September 15
Rank Precipitation Year
1 1.09 inches 1933
2 0.73 inches 1965
2 0.73 inches 1977
4 0.67 inches 2017
5 0.66 inches 1966
6 0.51 inches 1914
7 0.49 inches 2015
8 0.32 inches 1906
9 0.24 inches 2006
10 0.21 inches 1945
All-Time Most Snow in Bozeman on September 15
Rank Precipitation Year
1 1.5 inches 1973
2 1.1 inches 1965
3 0.2 inches 1903
Weather Station Details
Years Station Coordinates
1892–2024 Bozeman Montana State University location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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