Boise September 15 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of September 15.
September 15 All-Time Records
1940–2022
Highest temperature 94 °F 2002
Lowest temperature 36 °F 1971
Lowest daily high 54 °F 1982
Highest daily low 64 °F 2013
Most precipitation 0.4 inches 1996
Most snow none -
September 15 Average Weather
1991–2020 1
Average high 80.1 °F
Average low 52.2 °F
Chance precipitation 13.1%
Chance snow 0%
Boise September 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2022 81 61 0.04 0.0
2021 84 52 0.00 0.0
2020 85 56 0.00 0.0
2019 92 61 0.00 0.0
2018 77 58 0.00 0.0
2017 69 50 0.00 0.0
2016 74 44 0.00 0.0
2015 63 51 0.20 0.0
2014 92 56 0.00 0.0
2013 90 64 0.00 0.0
2012 91 58 0.00 0.0
2011 88 61 0.09 0.0
2010 89 57 0.00 0.0
2009 84 58 0.00 0.0
2008 88 58 0.00 0.0
2007 83 55 0.00 0.0
2006 63 43 0.00 0.0
2005 82 49 0.00 0.0
2004 68 52 0.03 0.0
2003 79 51 0.00 0.0
2002 94 62 0.00 0.0
2001 82 59 0.00 0.0
2000 90 59 0.00 0.0
1999 85 55 0.00 0.0
1998 94 59 0.00 0.0
1997 67 50 0.11 0.0
1996 64 48 0.42 0.0
1995 94 57 0.00 0.0
1994 77 43 0.00 0.0
1993 72 49 0.00 0.0
1992 81 48 0.00 0.0
1991 74 42 0.00 0.0
1990 82 52 0.00 0.0
1989 87 48 0.00 0.0
1988 89 53 0.00 0.0
1987 69 48 0.00 0.0
1986 69 49 0.00 0.0
1985 64 43 0.00 0.0
1984 84 50 0.00 0.0
1983 83 43 0.00 0.0
1982 54 37 0.00 0.0
1981 90 52 0.00 0.0
1980 75 45 0.00 0.0
1979 88 50 0.00 0.0
1978 73 46 0.00 0.0
1977 76 53 0.00 0.0
1976 70 54 0.25 0.0
1975 89 59 0.00 0.0
1974 82 46 0.00 0.0
1973 73 45 0.00 0.0
1972 79 47 0.00 0.0
1971 72 36 0.00 0.0
1970 64 36 0.00 0.0
1969 72 38 0.00 0.0
1968 66 47 0.00 0.0
1967 79 49 0.00 0.0
1966 68 49 0.00 0.0
1965 67 47 0.08 0.0
1964 73 45 0.00 0.0
1963 72 53 0.08 0.0
1962 82 48 0.00 0.0
1961 86 50 0.00 0.0
1960 88 53 0.00 0.0
1959 60 45 0.01 0.0
1958 72 45 0.00 0.0
1957 83 51 0.00 0.0
1956 87 51 0.00 0.0
1955 65 41 0.00 0.0
1954 64 50 0.08 0.0
1953 91 63 0.00 0.0
1952 81 45 0.00 0.0
1951 89 55 0.00 0.0
1950 69 40 0.00 0.0
1949 85 52 0.00 0.0
1948 71 51 0.00 0.0
1947 82 42 0.00 0.0
1946 72 50 0.00 0.0
1945 80 48 0.05 0.0
1944 68 38 0.00 0.0
1943 86 52 0.00 0.0
1942 80 52 0.00 0.0
1941 66 49 0.00 0.0
1940 73 48 0.00 0.0
All-Time Highest Temperatures in Boise on September 15
Rank Temperature Year
1 94 °F 1998
1 94 °F 2002
1 94 °F 1995
4 92 °F 2014
4 92 °F 2019
6 91 °F 1953
6 91 °F 2012
8 90 °F 2000
8 90 °F 2013
8 90 °F 1981
All-Time Lowest Temperatures in Boise on September 15
Rank Temperature Year
1 36 °F 1970
1 36 °F 1971
3 37 °F 1982
4 38 °F 1969
4 38 °F 1944
6 40 °F 1950
7 41 °F 1955
8 42 °F 1947
8 42 °F 1991
10 43 °F 1983
10 43 °F 1994
10 43 °F 1985
10 43 °F 2006
Lowest High Temperatures in Boise on September 15
Rank Temperature Year
1 54 °F 1982
2 60 °F 1959
3 63 °F 2015
3 63 °F 2006
5 64 °F 1970
5 64 °F 1985
5 64 °F 1954
5 64 °F 1996
9 65 °F 1955
10 66 °F 1968
10 66 °F 1941
All-Time Most Precipitation in Boise on September 15
Rank Precipitation Year
1 0.4 inches 1996
2 0.3 inches 1976
3 0.2 inches 2015
4 0.1 inches 1997
5 0.1 inches 2011
6 0.1 inches 1954
6 0.1 inches 1965
6 0.1 inches 1963
9 0.1 inches 1945
10 0.0 inches 2022
Weather Station Details
Years Station Coordinates
1940–2022 location