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Boise September 23 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of September 23.
September 23 All-Time Records
1940–2022
Highest temperature 94 °F 1987
Lowest temperature 29 °F 1984
Lowest daily high 52 °F 1984
Highest daily low 63 °F 2014
Most precipitation 0.4 inches 2007
Most snow none -
September 23 Average Weather
1991–2020 1
Average high 76.4 °F
Average low 49.6 °F
Chance precipitation 14.3%
Chance snow 0%
Boise September 23 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2021 77 51 0.00 0.0
2020 85 60 0.00 0.0
2019 73 51 0.00 0.0
2018 70 48 0.00 0.0
2017 61 36 0.00 0.0
2016 70 50 0.00 0.0
2015 84 56 0.00 0.0
2014 86 63 0.00 0.0
2013 73 50 0.00 0.0
2012 67 52 0.04 0.0
2011 92 57 0.00 0.0
2010 76 45 0.00 0.0
2009 88 56 0.00 0.0
2008 71 40 0.00 0.0
2007 61 48 0.35 0.0
2006 67 38 0.00 0.0
2005 68 47 0.00 0.0
2004 76 52 0.00 0.0
2003 83 49 0.00 0.0
2002 79 51 0.00 0.0
2001 89 56 0.00 0.0
2000 60 34 0.00 0.0
1999 87 56 0.00 0.0
1998 75 51 0.00 0.0
1997 81 56 0.00 0.0
1996 66 34 0.00 0.0
1995 75 40 0.00 0.0
1994 84 50 0.00 0.0
1993 72 33 0.00 0.0
1992 87 61 0.00 0.0
1991 76 38 0.00 0.0
1990 87 54 0.00 0.0
1989 87 50 0.00 0.0
1988 77 46 0.00 0.0
1987 94 54 0.00 0.0
1986 75 40 0.00 0.0
1985 67 35 0.00 0.0
1984 52 29 0.00 0.0
1983 77 49 0.00 0.0
1982 86 48 0.00 0.0
1981 64 36 0.00 0.0
1980 71 42 0.00 0.0
1979 83 50 0.00 0.0
1978 80 45 0.00 0.0
1977 68 39 0.00 0.0
1976 78 53 0.00 0.0
1975 88 51 0.00 0.0
1974 83 48 0.00 0.0
1973 67 50 0.00 0.0
1972 58 38 0.00 0.0
1971 84 50 0.00 0.0
1970 63 39 0.00 0.0
1969 71 56 0.00 0.0
1968 71 43 0.00 0.0
1967 80 47 0.00 0.0
1966 87 59 0.00 0.0
1965 68 46 0.00 0.0
1964 76 44 0.00 0.0
1963 78 52 0.00 0.0
1962 85 50 0.00 0.0
1961 60 36 0.01 0.0
1960 73 51 0.00 0.0
1959 66 39 0.00 0.0
1958 54 36 0.08 0.0
1957 82 48 0.00 0.0
1956 77 41 0.00 0.0
1955 67 44 0.00 0.0
1954 74 45 0.00 0.0
1953 74 43 0.00 0.0
1952 85 54 0.00 0.0
1951 74 41 0.00 0.0
1950 79 50 0.00 0.0
1949 89 55 0.00 0.0
1948 58 40 0.00 0.0
1947 85 56 0.00 0.0
1946 71 39 0.00 0.0
1945 59 37 0.00 0.0
1944 77 48 0.00 0.0
1943 86 50 0.00 0.0
1942 79 43 0.00 0.0
1941 69 45 0.00 0.0
1940 74 47 0.00 0.0
All-Time Highest Temperatures in Boise on September 23
Rank Temperature Year
1 94 °F 1987
2 92 °F 2011
3 89 °F 2001
3 89 °F 1949
5 88 °F 1975
5 88 °F 2009
7 87 °F 1990
7 87 °F 1989
7 87 °F 1966
7 87 °F 1999
7 87 °F 1992
All-Time Lowest Temperatures in Boise on September 23
Rank Temperature Year
1 29 °F 1984
2 33 °F 1993
3 34 °F 1996
3 34 °F 2000
5 35 °F 1985
6 36 °F 2017
6 36 °F 1981
6 36 °F 1961
6 36 °F 1958
10 37 °F 1945
Lowest High Temperatures in Boise on September 23
Rank Temperature Year
1 52 °F 1984
2 54 °F 1958
3 58 °F 1948
3 58 °F 1972
5 59 °F 1945
6 60 °F 1961
6 60 °F 2000
8 61 °F 2007
8 61 °F 2017
10 63 °F 1970
All-Time Most Precipitation in Boise on September 23
Rank Precipitation Year
1 0.4 inches 2007
2 0.1 inches 1958
3 0.0 inches 2012
4 0.0 inches 1961
Weather Station Details
Years Station Coordinates
1940–2022 location