Helena September 23 Weather Records

Daily averages and all-time records for weather in Helena, Montana for the date of September 23.
September 23 All-Time Records
1893–2024
Highest temperature 90 °F 1966
Lowest temperature 16 °F 1926
Lowest daily high 23 °F 1934
Highest daily low 55 °F 2004
Most precipitation 0.56 inches 2007
Most snow 5.5 inches 1926
September 23 Average Weather
1991–2020 1
Average high 69.4 °F
Average low 41.1 °F
Chance precipitation 19.7%
Chance snow 0.6%
Helena September 23 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 70 49 0.01 0.0
2022 71 53 0.00 0.0
2021 73 52 0.00 0.0
2020 77 47 0.00 0.0
2019 72 49 0.00 0.0
2018 65 50 0.05 0.0
2017 52 37 0.00 0.0
2016 62 50 0.03 0.0
2015 83 48 0.00 0.0
2014 n/a n/a n/a n/a
2013 64 42 0.00 0.0
2012 77 47 0.00 0.0
2011 89 47 0.00 0.0
2010 68 41 0.00 0.0
2009 85 43 0.00 0.0
2008 63 38 0.01 0.0
2007 54 40 0.56 0.0
2006 62 36 0.00 0.0
2005 57 42 0.04 0.0
2004 67 55 0.00 0.0
2003 78 44 0.00 n/a
2002 71 35 0.00 n/a
2001 84 47 0.00 n/a
2000 46 19 0.00 n/a
1999 84 37 0.00 n/a
1998 72 32 0.00 n/a
1997 78 34 0.00 n/a
1996 59 24 0.00 n/a
1995 61 34 0.00 0.0
1994 88 35 0.00 0.0
1993 65 28 0.00 0.0
1992 86 44 0.00 0.0
1991 67 44 0.00 0.0
1990 85 38 0.00 0.0
1989 80 38 0.00 0.0
1988 73 40 0.00 0.0
1987 86 42 0.00 0.0
1986 72 33 0.00 0.0
1985 46 33 0.05 0.4
1984 36 30 0.17 1.9
1983 75 35 0.00 0.0
1982 75 38 0.00 0.0
1981 61 31 0.00 0.0
1980 61 44 0.00 0.0
1979 78 45 0.00 0.0
1978 76 40 0.00 0.0
1977 64 32 0.00 0.0
1976 67 45 0.08 0.0
1975 74 36 0.00 0.0
1974 74 35 0.00 0.0
1973 62 44 0.00 0.0
1972 51 33 0.00 0.0
1971 72 28 0.00 0.0
1970 57 37 0.02 0.0
1969 68 47 0.02 0.0
1968 62 43 0.00 0.0
1967 77 40 0.00 0.0
1966 90 51 0.00 0.0
1965 58 32 0.00 0.0
1964 68 43 0.00 0.0
1963 73 49 0.00 0.0
1962 69 42 0.00 0.0
1961 40 26 0.03 0.0
1960 63 39 0.00 0.0
1959 64 43 0.02 0.0
1958 49 37 0.39 0.0
1957 79 36 0.00 0.0
1956 73 35 0.00 0.0
1955 48 29 0.00 0.0
1954 71 51 0.00 0.0
1953 70 50 0.00 0.0
1952 85 36 0.00 0.0
1951 50 40 0.00 0.0
1950 77 39 0.00 0.0
1949 84 38 0.00 0.0
1948 48 35 0.03 0.0
1947 79 46 0.00 0.0
1946 69 32 0.00 0.0
1945 52 33 0.00 0.0
1944 73 39 0.00 0.0
1943 77 33 0.00 0.0
1942 62 44 0.00 0.0
1941 55 37 0.00 0.0
1940 66 45 0.10 0.0
1939 76 41 0.00 n/a
1938 81 52 0.00 0.0
1937 48 33 0.17 0.0
1936 70 43 0.00 0.0
1935 76 52 0.00 0.0
1934 23 20 0.04 0.6
1933 54 38 0.03 0.0
1932 77 40 0.00 0.0
1931 49 32 0.00 0.0
1930 45 38 0.07 0.0
1929 53 39 0.18 0.0
1928 71 41 0.00 0.0
1927 72 47 0.00 0.0
1926 25 16 0.18 5.5
1925 73 41 0.00 0.0
1924 77 46 0.00 0.0
1923 65 36 0.00 0.0
1922 78 44 0.00 0.0
1921 63 44 0.00 0.0
1920 59 37 0.00 0.0
1919 78 44 0.00 0.0
1918 53 46 0.33 0.0
1917 63 44 0.34 0.0
1916 61 45 0.00 0.0
1915 62 47 0.00 0.0
1914 71 42 0.00 0.0
1913 42 33 0.11 0.0
1912 49 34 0.09 0.0
1911 51 25 0.00 0.2
1910 71 39 0.00 0.0
1909 63 34 0.00 0.0
1908 59 41 0.00 0.0
1907 78 52 0.00 0.0
1906 82 50 0.00 0.0
1905 78 53 0.00 0.0
1904 65 40 0.00 0.0
1903 82 47 0.00 0.0
1902 78 45 0.00 0.0
1901 51 33 0.01 0.0
1900 68 43 0.01 0.0
1899 77 51 0.00 0.0
1898 59 42 0.01 0.0
1897 73 54 0.00 0.0
1896 65 49 0.17 0.0
1895 61 44 0.00 0.0
1894 43 37 0.00 0.0
1893 65 30 0.00 0.0
What's the all-time high for Helena on 9/23?
For the date of Sep 23, the highest temperature ever reached in Helena history is 90 °F which happened in 1966.
Highest Temperatures in Helena on September 23
Rank Temperature Year
1 90 °F 1966
2 89 °F 2011
3 88 °F 1994
4 86 °F 1992
4 86 °F 1987
6 85 °F 1990
6 85 °F 1952
6 85 °F 2009
9 84 °F 1949
9 84 °F 1999
9 84 °F 2001
What's the all-time low for Helena on 9/23?
For the date of Sep 23, the lowest temperature ever reached in Helena history is 16 °F which happened in 1926.
Lowest Temperatures in Helena on September 23
Rank Temperature Year
1 16 °F 1926
2 19 °F 2000
3 20 °F 1934
4 24 °F 1996
5 25 °F 1911
6 26 °F 1961
7 28 °F 1993
7 28 °F 1971
9 29 °F 1955
10 30 °F 1984
10 30 °F 1893
Lowest High Temperatures in Helena on September 23
Rank Temperature Year
1 23 °F 1934
2 25 °F 1926
3 36 °F 1984
4 40 °F 1961
5 42 °F 1913
6 43 °F 1894
7 45 °F 1930
8 46 °F 2000
8 46 °F 1985
10 48 °F 1955
10 48 °F 1948
10 48 °F 1937
What's the most it has ever rained in Helena on 9/23?
For the date of Sep 23, the most precipitation ever recorded in Helena history is 0.56 inches which happened in 2007.
All-Time Most Precipitation in Helena on September 23
Rank Precipitation Year
1 0.56 inches 2007
2 0.39 inches 1958
3 0.34 inches 1917
4 0.33 inches 1918
5 0.18 inches 1929
5 0.18 inches 1926
7 0.17 inches 1896
7 0.17 inches 1937
7 0.17 inches 1984
10 0.11 inches 1913
All-Time Most Snow in Helena on September 23
Rank Precipitation Year
1 5.5 inches 1926
2 1.9 inches 1984
3 0.6 inches 1934
4 0.4 inches 1985
5 0.2 inches 1911
Weather Station Details
Years Station Coordinates
1939–2024 Helena Regional Airport location
1893–1938 Helna location