Boise October 9 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of October 9.
October 9 All-Time Records
1911–2024
Highest temperature 90 °F 2015
Lowest temperature 18 °F 1985
Lowest daily high 48 °F 1985
Highest daily low 60 °F 1955
Most precipitation 0.95 inches 2018
Most snow none -
October 9 Average Weather
1991–2020 1
Average high 69.2 °F
Average low 43.8 °F
Chance precipitation 16.4%
Chance snow 0.1%
Boise October 9 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 86 55 0.02 0.0
2022 77 50 0.00 0.0
2021 62 44 0.01 0.0
2020 78 49 0.00 0.0
2019 49 33 0.00 0.0
2018 54 43 0.95 0.0
2017 59 31 0.00 0.0
2016 80 52 0.00 0.0
2015 90 56 0.00 0.0
2014 75 48 0.00 0.0
2013 61 36 0.00 0.0
2012 71 40 0.00 0.0
2011 70 42 0.00 0.0
2010 71 49 0.00 0.0
2009 59 36 0.00 0.0
2008 53 31 0.00 0.0
2007 83 49 0.00 0.0
2006 62 42 0.04 0.0
2005 64 43 0.02 0.0
2004 72 45 0.00 0.0
2003 64 46 0.00 0.0
2002 74 45 0.00 0.0
2001 56 34 0.00 0.0
2000 85 48 0.00 0.0
1999 70 47 0.00 0.0
1998 64 41 0.00 0.0
1997 63 44 0.17 0.0
1996 88 55 0.00 0.0
1995 65 37 0.00 0.0
1994 80 39 0.00 0.0
1993 63 35 0.00 0.0
1992 64 35 0.00 0.0
1991 78 41 0.00 0.0
1990 69 36 0.00 0.0
1989 75 43 0.00 0.0
1988 83 44 0.00 0.0
1987 77 41 0.00 0.0
1986 71 44 0.00 0.0
1985 48 18 0.00 0.0
1984 73 50 0.00 0.0
1983 68 53 0.15 0.0
1982 60 31 0.00 0.0
1981 63 44 0.00 0.0
1980 70 43 0.00 0.0
1979 73 41 0.00 0.0
1978 81 42 0.00 0.0
1977 61 35 0.00 0.0
1976 82 45 0.00 0.0
1975 70 50 0.00 0.0
1974 57 50 0.17 0.0
1973 59 34 0.00 0.0
1972 69 48 0.25 0.0
1971 81 52 0.00 0.0
1970 54 46 0.13 0.0
1969 53 34 0.00 0.0
1968 67 36 0.00 0.0
1967 73 43 0.00 0.0
1966 63 31 0.00 0.0
1965 81 49 0.00 0.0
1964 71 46 0.00 0.0
1963 66 52 0.44 0.0
1962 62 52 0.24 0.0
1961 58 23 0.00 0.0
1960 63 32 0.00 0.0
1959 65 43 0.22 0.0
1958 59 34 0.00 0.0
1957 71 46 0.00 0.0
1956 73 47 0.00 0.0
1955 83 60 0.00 0.0
1954 69 42 0.00 0.0
1953 86 50 0.00 0.0
1952 73 51 0.00 0.0
1951 80 47 0.00 0.0
1950 60 38 0.00 0.0
1949 48 30 0.13 0.0
1948 72 43 0.00 0.0
1947 68 44 0.35 0.0
1946 58 34 0.00 0.0
1945 78 46 0.00 0.0
1944 72 47 0.01 0.0
1943 80 53 0.00 0.0
1942 87 52 0.00 0.0
1941 70 40 0.00 0.0
1940 67 40 0.00 0.0
1939 67 34 0.00 0.0
1938 67 40 0.00 0.0
1937 78 33 0.00 0.0
1936 81 36 0.00 0.0
1935 78 39 0.00 0.0
1934 78 43 0.00 0.0
1933 83 37 0.00 0.0
1932 63 35 0.00 0.0
1931 75 30 0.00 n/a
1930 64 30 0.00 n/a
1929 70 45 0.00 0.0
1928 79 39 0.00 0.0
1927 68 28 0.00 0.0
1926 79 46 0.00 0.0
1925 66 39 0.00 0.0
1924 52 36 0.00 0.0
1923 50 36 0.01 0.0
1922 86 43 0.00 0.0
1921 73 32 0.00 0.0
1920 68 41 0.00 0.0
1919 51 29 0.00 0.0
1918 72 38 0.00 0.0
1917 79 40 0.00 0.0
1916 61 34 0.00 0.0
1915 77 37 0.00 0.0
1914 66 35 0.00 0.0
1913 50 36 0.10 0.0
1912 57 31 0.00 0.0
1911 76 41 0.24 0.0
What's the all-time high for Boise on 10/9?
For the date of Oct 9, the highest temperature ever reached in Boise history is 90 °F which happened in 2015.
Highest Temperatures in Boise on October 9
Rank Temperature Year
1 90 °F 2015
2 88 °F 1996
3 87 °F 1942
4 86 °F 2023
4 86 °F 1922
4 86 °F 1953
7 85 °F 2000
8 83 °F 1988
8 83 °F 1933
8 83 °F 2007
8 83 °F 1955
What's the all-time low for Boise on 10/9?
For the date of Oct 9, the lowest temperature ever reached in Boise history is 18 °F which happened in 1985.
Lowest Temperatures in Boise on October 9
Rank Temperature Year
1 18 °F 1985
2 23 °F 1961
3 28 °F 1927
4 29 °F 1919
5 30 °F 1931
5 30 °F 1930
5 30 °F 1949
8 31 °F 1966
8 31 °F 2008
8 31 °F 1982
8 31 °F 1912
8 31 °F 2017
Lowest High Temperatures in Boise on October 9
Rank Temperature Year
1 48 °F 1985
1 48 °F 1949
3 49 °F 2019
4 50 °F 1913
4 50 °F 1923
6 51 °F 1919
7 52 °F 1924
8 53 °F 1969
8 53 °F 2008
10 54 °F 1970
10 54 °F 2018
What's the most it has ever rained in Boise on 10/9?
For the date of Oct 9, the most precipitation ever recorded in Boise history is 0.95 inches which happened in 2018.
All-Time Most Precipitation in Boise on October 9
Rank Precipitation Year
1 0.95 inches 2018
2 0.44 inches 1963
3 0.35 inches 1947
4 0.25 inches 1972
5 0.24 inches 1911
5 0.24 inches 1962
7 0.22 inches 1959
8 0.17 inches 1997
8 0.17 inches 1974
10 0.15 inches 1983
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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