Boise August 9 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of August 9.
August 9 All-Time Records
1911–2024
Highest temperature 106 °F 2018
Lowest temperature 42 °F 1931
Lowest daily high 71 °F 1962
Highest daily low 76 °F 2022
Most precipitation 1.27 inches 1930
Most snow none -
August 9 Average Weather
1991–2020 1
Average high 92.4 °F
Average low 61.9 °F
Chance precipitation 6.7%
Chance snow 0%
Boise August 9 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 93 65 0.00 0.0
2022 99 76 0.00 0.0
2021 83 53 0.00 0.0
2020 88 58 0.00 0.0
2019 93 64 0.06 0.0
2018 106 69 0.00 0.0
2017 92 65 0.00 0.0
2016 75 57 0.00 0.0
2015 94 65 0.00 0.0
2014 93 65 0.00 0.0
2013 97 64 0.00 0.0
2012 98 65 0.00 0.0
2011 92 63 0.00 0.0
2010 90 67 0.07 0.0
2009 83 58 0.00 0.0
2008 92 68 0.00 0.0
2007 94 61 0.00 0.0
2006 85 61 0.00 0.0
2005 99 71 0.00 0.0
2004 94 60 0.00 0.0
2003 98 64 0.00 0.0
2002 83 55 0.00 0.0
2001 93 68 0.00 0.0
2000 102 67 0.00 0.0
1999 96 58 0.00 0.0
1998 97 66 0.00 0.0
1997 87 54 0.00 0.0
1996 98 62 0.00 0.0
1995 88 47 0.00 0.0
1994 91 53 0.00 0.0
1993 91 56 0.00 0.0
1992 90 51 0.00 0.0
1991 100 67 0.00 0.0
1990 100 68 0.00 0.0
1989 90 67 0.00 0.0
1988 95 58 0.00 0.0
1987 100 61 0.00 0.0
1986 98 60 0.00 0.0
1985 79 43 0.00 0.0
1984 101 60 0.00 0.0
1983 93 69 0.00 0.0
1982 94 63 0.00 0.0
1981 94 62 0.00 0.0
1980 84 49 0.00 0.0
1979 93 58 0.00 0.0
1978 99 64 0.00 0.0
1977 92 60 0.00 0.0
1976 79 48 0.00 0.0
1975 92 56 0.00 0.0
1974 81 48 0.00 0.0
1973 94 59 0.00 0.0
1972 101 66 0.00 0.0
1971 103 62 0.00 0.0
1970 86 50 0.00 0.0
1969 98 60 0.00 0.0
1968 95 62 0.54 0.0
1967 92 56 0.00 0.0
1966 88 53 0.00 0.0
1965 100 63 0.00 0.0
1964 94 62 0.00 0.0
1963 96 69 0.59 0.0
1962 71 55 0.08 0.0
1961 92 60 0.00 0.0
1960 95 63 0.00 0.0
1959 93 55 0.00 0.0
1958 92 67 0.29 0.0
1957 92 58 0.00 0.0
1956 90 60 0.00 0.0
1955 92 53 0.00 0.0
1954 92 57 0.00 0.0
1953 86 51 0.00 0.0
1952 92 58 0.00 0.0
1951 90 60 0.00 0.0
1950 88 54 0.00 0.0
1949 88 52 0.00 0.0
1948 84 59 0.00 0.0
1947 79 56 0.00 0.0
1946 97 55 0.00 0.0
1945 89 58 0.00 0.0
1944 81 50 0.00 0.0
1943 89 55 0.00 0.0
1942 97 62 0.00 0.0
1941 90 70 0.00 0.0
1940 96 64 0.00 0.0
1939 92 44 0.00 0.0
1938 89 48 0.00 0.0
1937 92 56 0.00 0.0
1936 91 62 0.00 0.0
1935 104 53 0.00 0.0
1934 92 49 0.00 n/a
1933 92 55 0.00 0.0
1932 82 n/a 0.00 n/a
1931 96 42 0.00 n/a
1930 98 62 1.27 n/a
1929 91 50 0.00 n/a
1928 103 55 0.00 n/a
1927 94 49 0.00 n/a
1926 95 52 0.00 0.0
1925 89 56 0.00 0.0
1924 97 55 0.00 0.0
1923 91 53 0.00 0.0
1922 87 64 0.00 0.0
1921 92 56 0.00 0.0
1920 90 60 0.00 0.0
1919 92 60 0.07 0.0
1918 79 47 0.00 0.0
1917 96 53 0.00 0.0
1916 82 51 0.00 0.0
1915 99 51 0.00 0.0
1914 86 51 0.00 0.0
1913 80 51 0.00 0.0
1912 88 58 0.00 0.0
1911 86 49 0.00 0.0
What's the all-time high for Boise on 8/9?
For the date of Aug 9, the highest temperature ever reached in Boise history is 106 °F which happened in 2018.
Highest Temperatures in Boise on August 9
Rank Temperature Year
1 106 °F 2018
2 104 °F 1935
3 103 °F 1971
3 103 °F 1928
5 102 °F 2000
6 101 °F 1984
6 101 °F 1972
8 100 °F 1990
8 100 °F 1991
8 100 °F 1965
8 100 °F 1987
What's the all-time low for Boise on 8/9?
For the date of Aug 9, the lowest temperature ever reached in Boise history is 42 °F which happened in 1931.
Lowest Temperatures in Boise on August 9
Rank Temperature Year
1 42 °F 1931
2 43 °F 1985
3 44 °F 1939
4 47 °F 1995
4 47 °F 1918
6 48 °F 1976
6 48 °F 1938
6 48 °F 1974
9 49 °F 1927
9 49 °F 1980
9 49 °F 1934
9 49 °F 1911
Lowest High Temperatures in Boise on August 9
Rank Temperature Year
1 71 °F 1962
2 75 °F 2016
3 79 °F 1985
3 79 °F 1918
3 79 °F 1976
3 79 °F 1947
7 80 °F 1913
8 81 °F 1944
8 81 °F 1974
10 82 °F 1932
10 82 °F 1916
What's the most it has ever rained in Boise on 8/9?
For the date of Aug 9, the most precipitation ever recorded in Boise history is 1.27 inches which happened in 1930.
All-Time Most Precipitation in Boise on August 9
Rank Precipitation Year
1 1.27 inches 1930
2 0.59 inches 1963
3 0.54 inches 1968
4 0.29 inches 1958
5 0.08 inches 1962
6 0.07 inches 1919
6 0.07 inches 2010
8 0.06 inches 2019
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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