Boise September 17 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of September 17.
September 17 All-Time Records
1911–2023
Highest temperature 95 °F 1998
Lowest temperature 24 °F 1965
Lowest daily high 53 °F 1965
Highest daily low 69 °F 2014
Most precipitation 0.7 inches 1919
Most snow none -
September 17 Average Weather
1991–2020 1
Average high 79.5 °F
Average low 51.8 °F
Chance precipitation 13.6%
Chance snow 0%
Boise September 17 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2022 83 53 0.00 0.0
2021 87 47 0.00 0.0
2020 87 55 0.00 0.0
2019 69 50 0.11 0.0
2018 78 47 0.00 0.0
2017 79 50 0.00 0.0
2016 83 53 0.00 0.0
2015 63 50 0.25 0.0
2014 92 69 0.00 0.0
2013 76 56 0.00 0.0
2012 82 49 0.00 0.0
2011 72 45 0.00 0.0
2010 88 58 0.00 0.0
2009 85 61 0.00 0.0
2008 87 57 0.00 0.0
2007 72 53 0.00 0.0
2006 67 42 0.00 0.0
2005 64 50 0.13 0.0
2004 80 52 0.00 0.0
2003 62 42 0.01 0.0
2002 65 53 0.16 0.0
2001 81 53 0.00 0.0
2000 83 58 0.00 0.0
1999 83 57 0.00 0.0
1998 95 67 0.00 0.0
1997 72 54 0.00 0.0
1996 63 38 0.00 0.0
1995 82 60 0.01 0.0
1994 89 55 0.00 0.0
1993 73 51 0.00 0.0
1992 78 45 0.00 0.0
1991 83 48 0.00 0.0
1990 75 42 0.00 0.0
1989 66 53 0.65 0.0
1988 60 42 0.00 0.0
1987 72 35 0.00 0.0
1986 61 45 0.13 0.0
1985 62 41 0.44 0.0
1984 89 56 0.00 0.0
1983 73 43 0.00 0.0
1982 81 46 0.00 0.0
1981 95 57 0.00 0.0
1980 85 48 0.00 0.0
1979 87 48 0.00 0.0
1978 58 33 0.00 0.0
1977 67 44 0.00 0.0
1976 64 53 0.02 0.0
1975 71 46 0.00 0.0
1974 85 50 0.00 0.0
1973 83 51 0.00 0.0
1972 82 48 0.00 0.0
1971 63 40 0.00 0.0
1970 86 47 0.00 0.0
1969 84 47 0.00 0.0
1968 78 47 0.00 0.0
1967 83 55 0.00 0.0
1966 92 57 0.00 0.0
1965 53 24 0.00 0.0
1964 72 47 0.00 0.0
1963 70 53 0.00 0.0
1962 85 47 0.00 0.0
1961 69 52 0.28 0.0
1960 81 51 0.00 0.0
1959 72 40 0.00 0.0
1958 72 51 0.00 0.0
1957 82 50 0.00 0.0
1956 88 55 0.00 0.0
1955 66 42 0.00 0.0
1954 65 44 0.00 0.0
1953 70 42 0.00 0.0
1952 87 51 0.00 0.0
1951 80 60 0.00 0.0
1950 74 50 0.00 0.0
1949 65 34 0.00 0.0
1948 72 53 0.00 0.0
1947 58 42 0.33 0.0
1946 63 43 0.00 0.0
1945 70 42 0.00 0.0
1944 62 42 0.00 0.0
1943 80 58 0.00 0.0
1942 61 38 0.00 0.0
1941 84 45 0.00 0.0
1940 72 49 0.00 0.0
1939 86 42 0.00 0.0
1938 95 45 0.00 0.0
1937 91 59 0.00 0.0
1936 79 31 0.00 0.0
1935 78 41 0.00 0.0
1934 90 43 0.00 0.0
1933 82 50 0.00 0.0
1932 87 51 0.00 n/a
1931 88 45 0.00 n/a
1930 92 50 0.00 n/a
1929 91 42 0.00 n/a
1928 91 46 0.00 n/a
1927 82 36 0.00 0.0
1926 67 37 0.00 0.0
1925 75 37 0.00 0.0
1923 70 40 0.00 0.0
1922 84 43 0.00 0.0
1921 83 36 0.00 0.0
1920 94 57 0.00 0.0
1919 74 53 0.74 0.0
1918 86 46 0.00 0.0
1917 88 43 0.00 0.0
1916 90 49 0.00 0.0
1915 84 39 0.00 0.0
1914 77 48 0.00 0.0
1913 90 44 0.00 0.0
1912 79 36 0.00 0.0
1911 65 30 0.00 0.0
All-Time Highest Temperatures in Boise on September 17
Rank Temperature Year
1 95 °F 1938
1 95 °F 1981
1 95 °F 1998
4 94 °F 1920
5 92 °F 1930
5 92 °F 2014
5 92 °F 1966
8 91 °F 1937
8 91 °F 1929
8 91 °F 1928
All-Time Lowest Temperatures in Boise on September 17
Rank Temperature Year
1 24 °F 1965
2 30 °F 1911
3 31 °F 1936
4 33 °F 1978
5 34 °F 1949
6 35 °F 1987
7 36 °F 1912
7 36 °F 1927
7 36 °F 1921
10 37 °F 1925
10 37 °F 1926
Lowest High Temperatures in Boise on September 17
Rank Temperature Year
1 53 °F 1965
2 58 °F 1947
2 58 °F 1978
4 60 °F 1988
5 61 °F 1986
5 61 °F 1942
7 62 °F 2003
7 62 °F 1944
7 62 °F 1985
10 63 °F 1971
10 63 °F 1946
10 63 °F 1996
10 63 °F 2015
All-Time Most Precipitation in Boise on September 17
Rank Precipitation Year
1 0.7 inches 1919
2 0.6 inches 1989
3 0.4 inches 1985
4 0.3 inches 1947
5 0.3 inches 1961
6 0.3 inches 2015
7 0.2 inches 2002
8 0.1 inches 2005
8 0.1 inches 1986
10 0.1 inches 2019
Weather Station Details
Years Station Coordinates
1940–2023 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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