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Boise September 9 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of September 9.
September 9 All-Time Records
1940–2022
Highest temperature 98 °F 2021
Lowest temperature 34 °F 1970
Lowest daily high 55 °F 1985
Highest daily low 69 °F 2017
Most precipitation 0.8 inches 1950
Most snow none -
September 9 Average Weather
1991–2020 1
Average high 82.3 °F
Average low 54.0 °F
Chance precipitation 11.8%
Chance snow 0%
Boise September 9 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2021 98 64 0.00 0.0
2020 78 47 0.00 0.0
2019 74 52 0.00 0.0
2018 84 52 0.00 0.0
2017 89 69 0.00 0.0
2016 77 44 0.00 0.0
2015 89 55 0.00 0.0
2014 78 50 0.00 0.0
2013 85 54 0.00 0.0
2012 93 67 0.01 0.0
2011 89 59 0.00 0.0
2010 67 49 0.00 0.0
2009 86 54 0.00 0.0
2008 84 56 0.00 0.0
2007 79 44 0.00 0.0
2006 85 59 0.00 0.0
2005 79 51 0.04 0.0
2004 81 54 0.00 0.0
2003 67 49 0.00 0.0
2002 77 47 0.00 0.0
2001 84 50 0.00 0.0
2000 67 44 0.00 0.0
1999 86 55 0.00 0.0
1998 70 62 0.46 0.0
1997 95 58 0.00 0.0
1996 89 54 0.00 0.0
1995 78 45 0.00 0.0
1994 77 50 0.00 0.0
1993 91 52 0.00 0.0
1992 78 44 0.00 0.0
1991 71 50 0.03 0.0
1990 92 57 0.00 0.0
1989 75 50 0.00 0.0
1988 87 50 0.00 0.0
1987 87 50 0.00 0.0
1986 65 49 0.02 0.0
1985 55 48 0.33 0.0
1984 82 52 0.00 0.0
1983 67 44 0.00 0.0
1982 91 57 0.00 0.0
1981 91 61 0.00 0.0
1980 84 54 0.00 0.0
1979 75 49 0.00 0.0
1978 81 50 0.09 0.0
1977 80 45 0.00 0.0
1976 82 47 0.00 0.0
1975 89 50 0.00 0.0
1974 87 50 0.00 0.0
1973 79 50 0.00 0.0
1972 72 52 0.00 0.0
1971 86 59 0.00 0.0
1970 71 34 0.00 0.0
1969 91 68 0.00 0.0
1968 93 54 0.00 0.0
1967 85 56 0.00 0.0
1966 85 53 0.00 0.0
1965 78 52 0.00 0.0
1964 71 41 0.00 0.0
1963 89 59 0.00 0.0
1962 77 43 0.00 0.0
1961 64 52 0.00 0.0
1960 83 51 0.00 0.0
1959 84 41 0.00 0.0
1958 87 57 0.00 0.0
1957 74 39 0.00 0.0
1956 91 57 0.00 0.0
1955 80 53 0.00 0.0
1954 91 52 0.00 0.0
1953 88 52 0.00 0.0
1952 69 49 0.00 0.0
1951 80 47 0.00 0.0
1950 64 55 0.75 0.0
1949 85 58 0.00 0.0
1948 84 49 0.00 0.0
1947 69 51 0.00 0.0
1946 77 47 0.00 0.0
1945 77 36 0.00 0.0
1944 92 57 0.00 0.0
1943 88 50 0.00 0.0
1942 74 49 0.01 0.0
1941 75 53 0.00 0.0
1940 90 63 0.31 0.0
All-Time Highest Temperatures in Boise on September 9
Rank Temperature Year
1 98 °F 2021
2 95 °F 1997
3 93 °F 2012
3 93 °F 1968
5 92 °F 1990
5 92 °F 1944
7 91 °F 1981
7 91 °F 1982
7 91 °F 1956
7 91 °F 1954
7 91 °F 1993
7 91 °F 1969
All-Time Lowest Temperatures in Boise on September 9
Rank Temperature Year
1 34 °F 1970
2 36 °F 1945
3 39 °F 1957
4 41 °F 1964
4 41 °F 1959
6 43 °F 1962
7 44 °F 1992
7 44 °F 2000
7 44 °F 1983
7 44 °F 2007
7 44 °F 2016
Lowest High Temperatures in Boise on September 9
Rank Temperature Year
1 55 °F 1985
2 64 °F 1950
2 64 °F 1961
4 65 °F 1986
5 67 °F 2003
5 67 °F 2010
5 67 °F 2000
5 67 °F 1983
9 69 °F 1947
9 69 °F 1952
All-Time Most Precipitation in Boise on September 9
Rank Precipitation Year
1 0.8 inches 1950
2 0.5 inches 1998
3 0.3 inches 1985
4 0.3 inches 1940
5 0.1 inches 1978
6 0.0 inches 2005
7 0.0 inches 1991
8 0.0 inches 1986
9 0.0 inches 2012
9 0.0 inches 1942
Weather Station Details
Years Station Coordinates
1940–2022 location