Boise May 15 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of May 15.
May 15 All-Time Records
1911–2024
Highest temperature 93 °F 2006
Lowest temperature 28 °F 1990
Lowest daily high 45 °F 1984
Highest daily low 62 °F 1992
Most precipitation 0.79 inches 1911
Most snow none -
May 15 Average Weather
1991–2020 1
Average high 71.9 °F
Average low 46.7 °F
Chance precipitation 27.9%
Chance snow 0%
Boise May 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 82 53 0.24 0.0
2022 85 50 0.00 0.0
2021 77 52 0.00 0.0
2020 65 45 0.01 0.0
2019 71 56 0.00 0.0
2018 78 56 0.19 0.0
2017 64 36 0.00 0.0
2016 62 51 0.18 0.0
2015 59 51 0.19 0.0
2014 85 52 0.00 0.0
2013 79 50 0.00 0.0
2012 81 56 0.00 0.0
2011 60 41 0.28 0.0
2010 80 51 0.00 0.0
2009 69 41 0.00 0.0
2008 82 55 0.00 0.0
2007 86 52 0.00 0.0
2006 93 57 0.00 0.0
2005 68 57 0.18 0.0
2004 71 49 0.19 0.0
2003 73 49 0.00 0.0
2002 69 41 0.00 0.0
2001 56 50 0.13 0.0
2000 76 44 0.00 0.0
1999 58 34 0.00 0.0
1998 55 41 0.18 0.0
1997 89 57 0.00 0.0
1996 70 56 0.25 0.0
1995 73 45 0.18 0.0
1994 78 53 0.00 0.0
1993 83 55 0.00 0.0
1992 82 62 0.00 0.0
1991 70 35 0.00 0.0
1990 63 28 0.00 0.0
1989 74 39 0.00 0.0
1988 91 43 0.00 0.0
1987 84 62 0.01 0.0
1986 62 32 0.00 0.0
1985 58 38 0.03 0.0
1984 45 36 0.06 0.0
1983 57 40 0.02 0.0
1982 70 47 0.00 0.0
1981 59 43 0.15 0.0
1980 65 47 0.29 0.0
1979 86 53 0.00 0.0
1978 71 44 0.02 0.0
1977 61 38 0.00 0.0
1976 73 33 0.00 0.0
1975 77 55 0.00 0.0
1974 53 31 0.00 0.0
1973 90 51 0.00 0.0
1972 83 57 0.00 0.0
1971 79 50 0.02 0.0
1970 75 41 0.00 0.0
1969 69 48 0.00 0.0
1968 64 41 0.00 0.0
1967 74 40 0.00 0.0
1966 70 35 0.00 0.0
1965 77 41 0.00 0.0
1964 81 43 0.00 0.0
1963 66 45 0.00 0.0
1962 66 44 0.00 0.0
1961 69 37 0.00 0.0
1960 74 41 0.00 0.0
1959 53 38 0.53 0.0
1958 73 44 0.00 0.0
1957 68 44 0.05 0.0
1956 73 42 0.00 0.0
1955 49 35 0.09 0.0
1954 88 53 0.00 0.0
1953 75 44 0.00 0.0
1952 64 37 0.03 0.0
1951 72 39 0.00 0.0
1950 71 43 0.00 0.0
1949 78 54 0.01 0.0
1948 81 40 0.00 0.0
1947 76 40 0.00 0.0
1946 70 39 0.00 0.0
1945 64 41 0.01 0.0
1944 78 51 0.00 0.0
1943 58 39 0.00 0.0
1942 57 42 0.11 0.0
1941 68 37 0.00 0.0
1940 73 42 0.00 0.0
1939 92 47 0.00 0.0
1938 75 48 0.00 0.0
1937 76 38 0.00 0.0
1936 72 52 0.00 0.0
1935 75 45 0.00 0.0
1934 91 50 0.00 n/a
1933 61 48 0.35 0.0
1932 68 35 0.00 n/a
1931 85 45 n/a n/a
1930 66 49 0.30 n/a
1929 79 33 0.00 0.0
1928 78 46 0.00 n/a
1927 89 47 0.00 0.0
1926 76 41 0.00 0.0
1925 78 46 0.00 0.0
1924 89 49 0.00 0.0
1923 69 42 0.00 0.0
1922 76 40 0.00 0.0
1921 81 51 0.00 0.0
1920 n/a 40 0.00 0.0
1919 72 46 0.00 0.0
1918 63 33 0.00 0.0
1917 74 42 0.00 0.0
1916 68 33 0.00 0.0
1915 64 33 0.01 0.0
1914 70 52 0.03 0.0
1913 68 44 0.01 0.0
1912 83 47 0.00 0.0
1911 64 47 0.79 0.0
What's the all-time high for Boise on 5/15?
For the date of May 15, the highest temperature ever reached in Boise history is 93 °F which happened in 2006.
Highest Temperatures in Boise on May 15
Rank Temperature Year
1 93 °F 2006
2 92 °F 1939
3 91 °F 1934
3 91 °F 1988
5 90 °F 1973
6 89 °F 1924
6 89 °F 1927
6 89 °F 1997
9 88 °F 1954
10 86 °F 1979
10 86 °F 2007
What's the all-time low for Boise on 5/15?
For the date of May 15, the lowest temperature ever reached in Boise history is 28 °F which happened in 1990.
Lowest Temperatures in Boise on May 15
Rank Temperature Year
1 28 °F 1990
2 31 °F 1974
3 32 °F 1986
4 33 °F 1976
4 33 °F 1915
4 33 °F 1916
4 33 °F 1929
4 33 °F 1918
9 34 °F 1999
10 35 °F 1991
10 35 °F 1932
10 35 °F 1955
10 35 °F 1966
Lowest High Temperatures in Boise on May 15
Rank Temperature Year
1 45 °F 1984
2 49 °F 1955
3 53 °F 1959
3 53 °F 1974
5 55 °F 1998
6 56 °F 2001
7 57 °F 1983
7 57 °F 1942
9 58 °F 1943
9 58 °F 1985
9 58 °F 1999
What's the most it has ever rained in Boise on 5/15?
For the date of May 15, the most precipitation ever recorded in Boise history is 0.79 inches which happened in 1911.
All-Time Most Precipitation in Boise on May 15
Rank Precipitation Year
1 0.79 inches 1911
2 0.53 inches 1959
3 0.35 inches 1933
4 0.30 inches 1930
5 0.29 inches 1980
6 0.28 inches 2011
7 0.25 inches 1996
8 0.24 inches 2023
9 0.19 inches 2015
9 0.19 inches 2004
9 0.19 inches 2018
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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