Boise May 9 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of May 9.
May 9 All-Time Records
1911–2024
Highest temperature 87 °F 1987
Lowest temperature 24 °F 1922
Lowest daily high 44 °F 2022
Highest daily low 57 °F 1966
Most precipitation 0.49 inches 1920
Most snow 0.5 inches 2022
May 9 Average Weather
1991–2020 1
Average high 69.9 °F
Average low 44.9 °F
Chance precipitation 27.5%
Chance snow 0%
Boise May 9 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 62 42 0.19 0.0
2022 44 33 0.26 0.5
2021 63 36 0.00 0.0
2020 81 48 0.00 0.0
2019 68 49 0.00 0.0
2018 79 56 0.00 0.0
2017 74 44 0.00 0.0
2016 61 46 0.00 0.0
2015 76 45 0.00 0.0
2014 63 45 0.27 0.0
2013 84 52 0.00 0.0
2012 82 49 0.00 0.0
2011 62 39 0.00 0.0
2010 67 41 0.00 0.0
2009 67 38 0.00 0.0
2008 63 42 0.00 0.0
2007 85 54 0.00 0.0
2006 60 34 0.00 0.0
2005 60 45 0.45 0.0
2004 69 45 0.00 0.0
2003 55 45 0.01 0.0
2002 63 43 0.00 0.0
2001 70 47 0.00 0.0
2000 62 49 0.14 0.0
1999 52 29 0.00 0.0
1998 62 47 0.00 0.0
1997 84 46 0.00 0.0
1996 66 35 0.00 0.0
1995 72 44 0.01 0.0
1994 86 48 0.00 0.0
1993 69 37 0.00 0.0
1992 65 41 0.00 0.0
1991 56 37 0.00 0.0
1990 71 33 0.00 0.0
1989 83 53 0.03 0.0
1988 67 44 0.00 0.0
1987 87 52 0.00 0.0
1986 65 39 0.04 0.0
1985 69 39 0.00 0.0
1984 66 51 0.00 0.0
1983 49 37 0.00 0.0
1982 56 37 0.03 0.0
1981 72 38 0.00 0.0
1980 55 44 0.11 0.0
1979 61 39 0.00 0.0
1978 78 48 0.15 0.0
1977 66 40 0.08 0.0
1976 80 48 0.00 0.0
1975 73 50 0.00 0.0
1974 65 50 0.00 0.0
1973 67 44 0.00 0.0
1972 63 33 0.00 0.0
1971 72 47 0.00 0.0
1970 59 40 0.02 0.0
1969 84 48 0.00 0.0
1968 80 48 0.00 0.0
1967 70 50 0.03 0.0
1966 80 57 0.00 0.0
1965 64 34 0.00 0.0
1964 69 40 0.00 0.0
1963 55 43 0.05 0.0
1962 75 45 0.00 0.0
1961 86 49 0.00 0.0
1960 82 45 0.00 0.0
1959 60 41 0.00 0.0
1958 77 48 0.00 0.0
1957 69 45 0.00 0.0
1956 67 41 0.00 0.0
1955 64 34 0.00 0.0
1954 83 51 0.03 0.0
1953 54 34 0.00 0.0
1952 65 39 0.00 0.0
1951 74 43 0.00 0.0
1950 64 32 0.00 0.0
1949 80 54 0.00 0.0
1948 54 38 0.02 0.0
1947 54 44 0.36 0.0
1946 66 44 0.04 0.0
1945 77 39 0.01 0.0
1944 65 43 0.00 0.0
1943 72 38 0.00 0.0
1942 70 43 0.09 0.0
1941 74 45 0.00 0.0
1940 86 46 0.00 0.0
1939 83 41 0.00 0.0
1938 69 40 0.00 0.0
1937 80 39 0.00 0.0
1936 n/a n/a 0.00 0.0
1935 74 41 0.00 0.0
1934 68 35 0.00 n/a
1933 61 34 0.00 0.0
1932 81 41 0.00 n/a
1931 68 32 n/a n/a
1930 68 40 0.16 n/a
1929 74 35 0.00 0.0
1928 87 54 0.00 n/a
1927 66 32 0.00 0.0
1926 63 32 0.00 0.0
1925 75 35 0.00 0.0
1924 87 47 0.00 0.0
1923 77 54 0.00 0.0
1922 60 24 0.00 0.0
1921 71 34 0.00 0.0
1920 67 49 0.49 0.0
1919 68 46 0.00 0.0
1918 62 29 0.00 0.0
1917 76 39 0.00 0.0
1916 72 36 0.03 0.0
1915 76 52 0.35 0.0
1914 73 40 0.00 0.0
1913 78 49 0.00 0.0
1912 75 46 0.00 0.0
1911 58 32 0.00 0.0
What's the all-time high for Boise on 5/9?
For the date of May 9, the highest temperature ever reached in Boise history is 87 °F which has happened 3 times, most recently in 1987.
Highest Temperatures in Boise on May 9
Rank Temperature Year
1 87 °F 1924
1 87 °F 1987
1 87 °F 1928
4 86 °F 1961
4 86 °F 1940
4 86 °F 1994
7 85 °F 2007
8 84 °F 2013
8 84 °F 1969
8 84 °F 1997
What's the all-time low for Boise on 5/9?
For the date of May 9, the lowest temperature ever reached in Boise history is 24 °F which happened in 1922.
Lowest Temperatures in Boise on May 9
Rank Temperature Year
1 24 °F 1922
2 29 °F 1999
2 29 °F 1918
4 32 °F 1911
4 32 °F 1926
4 32 °F 1950
4 32 °F 1931
4 32 °F 1927
9 33 °F 1972
9 33 °F 1990
9 33 °F 2022
Lowest High Temperatures in Boise on May 9
Rank Temperature Year
1 44 °F 2022
2 49 °F 1983
3 52 °F 1999
4 54 °F 1947
4 54 °F 1948
4 54 °F 1953
7 55 °F 2003
7 55 °F 1980
7 55 °F 1963
10 56 °F 1991
10 56 °F 1982
What's the most it has ever rained in Boise on 5/9?
For the date of May 9, the most precipitation ever recorded in Boise history is 0.49 inches which happened in 1920.
All-Time Most Precipitation in Boise on May 9
Rank Precipitation Year
1 0.49 inches 1920
2 0.45 inches 2005
3 0.36 inches 1947
4 0.35 inches 1915
5 0.27 inches 2014
6 0.26 inches 2022
7 0.19 inches 2023
8 0.16 inches 1930
9 0.15 inches 1978
10 0.14 inches 2000
All-Time Most Snow in Boise on May 9
Rank Precipitation Year
1 0.5 inches 2022
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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