Boise September 11 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of September 11.
September 11 All-Time Records
1911–2024
Highest temperature 97 °F 1963
Lowest temperature 30 °F 1931
Lowest daily high 55 °F 1972
Highest daily low 68 °F 1996
Most precipitation 1.73 inches 1976
Most snow none -
September 11 Average Weather
1991–2020 1
Average high 81.5 °F
Average low 53.4 °F
Chance precipitation 12.1%
Chance snow 0%
Boise September 11 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 93 63 0.00 0.0
2022 88 54 0.00 0.0
2021 79 53 0.00 0.0
2020 87 54 0.00 0.0
2019 74 49 0.00 0.0
2018 73 51 0.00 0.0
2017 90 58 0.00 0.0
2016 83 51 0.00 0.0
2015 92 57 0.00 0.0
2014 70 46 0.00 0.0
2013 89 60 0.00 0.0
2012 72 47 0.00 0.0
2011 94 63 0.00 0.0
2010 83 52 0.00 0.0
2009 89 57 0.00 0.0
2008 76 50 0.00 0.0
2007 85 52 0.00 0.0
2006 87 58 0.00 0.0
2005 70 44 0.00 0.0
2004 88 61 0.00 0.0
2003 77 50 0.00 0.0
2002 85 54 0.00 0.0
2001 91 57 0.00 0.0
2000 78 48 0.00 0.0
1999 79 45 0.00 0.0
1998 79 56 0.00 0.0
1997 71 56 0.40 0.0
1996 95 68 0.00 0.0
1995 84 54 0.00 0.0
1994 76 41 0.00 0.0
1993 87 57 0.00 0.0
1992 86 53 0.00 0.0
1991 73 54 0.00 0.0
1990 95 57 0.00 0.0
1989 73 44 0.00 0.0
1988 68 40 0.00 0.0
1987 89 56 0.00 0.0
1986 74 44 0.00 0.0
1985 57 46 0.07 0.0
1984 71 47 0.00 0.0
1983 78 47 0.00 0.0
1982 63 35 0.00 0.0
1981 88 49 0.00 0.0
1980 75 55 0.38 0.0
1979 77 42 0.00 0.0
1978 65 45 0.00 0.0
1977 86 50 0.00 0.0
1976 76 58 1.73 0.0
1975 87 58 0.00 0.0
1974 71 46 0.00 0.0
1973 88 54 0.00 0.0
1972 55 49 0.29 0.0
1971 79 52 0.00 0.0
1970 72 44 0.00 0.0
1969 81 62 0.00 0.0
1968 89 66 0.00 0.0
1967 64 47 0.27 0.0
1966 81 50 0.00 0.0
1965 77 47 0.00 0.0
1964 77 46 0.00 0.0
1963 97 58 0.00 0.0
1962 72 54 0.01 0.0
1961 78 46 0.00 0.0
1960 93 55 0.00 0.0
1959 95 68 0.00 0.0
1958 85 57 0.00 0.0
1957 78 47 0.00 0.0
1956 79 57 0.00 0.0
1955 85 60 0.00 0.0
1954 77 53 0.00 0.0
1953 96 58 0.00 0.0
1952 71 46 0.00 0.0
1951 67 46 0.00 0.0
1950 74 52 0.00 0.0
1949 66 43 0.00 0.0
1948 89 51 0.00 0.0
1947 73 40 0.00 0.0
1946 86 55 0.00 0.0
1945 85 50 0.00 0.0
1944 91 57 0.00 0.0
1943 90 55 0.00 0.0
1942 75 41 0.00 0.0
1941 68 46 0.10 0.0
1940 93 67 0.00 0.0
1939 81 56 0.00 0.0
1938 77 41 0.00 0.0
1937 89 48 0.00 0.0
1936 78 38 0.00 0.0
1935 89 53 0.00 0.0
1934 85 41 0.00 0.0
1933 79 46 0.00 0.0
1932 85 45 0.00 n/a
1931 80 30 0.00 n/a
1930 68 48 0.29 n/a
1929 81 38 0.00 n/a
1928 80 40 0.00 n/a
1927 70 49 0.04 0.0
1926 82 37 0.00 0.0
1925 81 44 0.00 0.0
1924 78 39 0.00 0.0
1923 89 49 0.00 0.0
1922 88 47 0.00 0.0
1921 67 41 0.00 0.0
1920 n/a n/a 0.00 0.0
1919 84 52 0.00 0.0
1918 86 43 0.00 0.0
1917 95 52 0.02 0.0
1916 74 32 0.00 0.0
1915 65 43 0.00 0.0
1914 80 44 0.00 0.0
1913 86 40 0.00 0.0
1912 77 47 0.00 0.0
1911 84 46 0.00 0.0
What's the all-time high for Boise on 9/11?
For the date of Sep 11, the highest temperature ever reached in Boise history is 97 °F which happened in 1963.
Highest Temperatures in Boise on September 11
Rank Temperature Year
1 97 °F 1963
2 96 °F 1953
3 95 °F 1917
3 95 °F 1996
3 95 °F 1990
3 95 °F 1959
7 94 °F 2011
8 93 °F 1960
8 93 °F 1940
8 93 °F 2023
What's the all-time low for Boise on 9/11?
For the date of Sep 11, the lowest temperature ever reached in Boise history is 30 °F which happened in 1931.
Lowest Temperatures in Boise on September 11
Rank Temperature Year
1 30 °F 1931
2 32 °F 1916
3 35 °F 1982
4 37 °F 1926
5 38 °F 1929
5 38 °F 1936
7 39 °F 1924
8 40 °F 1988
8 40 °F 1928
8 40 °F 1947
8 40 °F 1913
Lowest High Temperatures in Boise on September 11
Rank Temperature Year
1 55 °F 1972
2 57 °F 1985
3 63 °F 1982
4 64 °F 1967
5 65 °F 1915
5 65 °F 1978
7 66 °F 1949
8 67 °F 1951
8 67 °F 1921
10 68 °F 1930
10 68 °F 1988
10 68 °F 1941
What's the most it has ever rained in Boise on 9/11?
For the date of Sep 11, the most precipitation ever recorded in Boise history is 1.73 inches which happened in 1976.
All-Time Most Precipitation in Boise on September 11
Rank Precipitation Year
1 1.73 inches 1976
2 0.40 inches 1997
3 0.38 inches 1980
4 0.29 inches 1972
4 0.29 inches 1930
6 0.27 inches 1967
7 0.10 inches 1941
8 0.07 inches 1985
9 0.04 inches 1927
10 0.02 inches 1917
Weather Station Details
Years Station Coordinates
1940–2024 location
1911–1939 Meridian 1 W location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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