Boise December 15 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of December 15.
December 15 All-Time Records
1911–2024
Highest temperature 68 °F 1929
Lowest temperature -10 °F 1931
Lowest daily high 8 °F 1919
Highest daily low 46 °F 1929
Most precipitation 0.82 inches 2009
Most snow 3.0 inches 1984
December 15 Average Weather
1991–2020 1
Average high 39.0 °F
Average low 25.2 °F
Chance precipitation 38.6%
Chance snow 17.6%
Boise December 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 40 28 0.00 0.0
2022 29 17 0.00 0.0
2021 33 19 0.01 0.1
2020 37 24 0.02 0.2
2019 37 27 0.00 0.0
2018 42 32 0.00 0.0
2017 29 26 0.05 0.5
2016 41 32 0.06 0.0
2015 39 28 0.00 0.0
2014 44 29 0.00 0.0
2013 34 21 0.00 0.0
2012 40 33 0.00 0.0
2011 36 20 0.00 0.0
2010 41 29 0.00 0.0
2009 39 35 0.82 0.0
2008 31 18 0.01 0.0
2007 35 29 0.00 0.0
2006 54 29 0.00 0.0
2005 23 9 0.00 0.0
2004 45 29 0.00 0.0
2003 39 29 0.00 0.0
2002 55 40 0.01 0.0
2001 35 23 0.00 0.0
2000 44 26 0.10 0.2
1999 38 33 0.09 0.5
1998 42 24 0.00 0.0
1997 44 29 0.00 0.0
1996 35 25 0.00 0.0
1995 46 36 0.19 0.0
1994 36 24 0.00 0.0
1993 46 23 0.00 0.0
1992 34 20 0.01 0.2
1991 36 20 0.00 0.0
1990 29 12 0.00 0.0
1989 46 23 0.00 0.0
1988 35 16 0.00 0.0
1987 37 26 0.00 0.0
1986 37 20 0.00 0.0
1985 15 -5 0.00 0.0
1984 34 20 0.28 3.0
1983 42 25 0.00 0.0
1982 47 36 0.55 0.0
1981 49 41 0.08 0.0
1980 38 22 0.00 0.0
1979 50 28 0.00 0.0
1978 34 10 0.00 0.0
1977 52 38 0.33 0.0
1976 45 14 0.00 0.0
1975 35 21 0.08 0.8
1974 40 32 0.08 0.3
1973 49 36 0.00 0.0
1972 19 -7 0.00 0.0
1971 33 20 0.01 0.2
1970 47 20 0.00 0.0
1969 46 33 0.00 0.0
1968 55 35 0.02 0.0
1967 21 4 0.00 0.0
1966 42 23 0.00 0.0
1965 28 16 0.00 0.0
1964 41 28 0.02 0.2
1963 36 26 0.00 0.0
1962 50 32 0.04 0.0
1961 29 25 0.03 0.9
1960 36 21 0.00 0.0
1959 45 20 0.00 0.0
1958 36 25 0.00 0.0
1957 44 30 0.26 0.0
1956 42 32 0.02 0.0
1955 29 18 0.01 0.3
1954 40 23 0.00 0.0
1953 37 26 0.00 0.0
1952 42 24 0.00 0.0
1951 32 20 0.00 0.0
1950 49 34 0.04 0.0
1949 32 22 0.00 0.0
1948 34 20 0.00 0.0
1947 37 21 0.00 0.0
1946 52 33 0.00 0.0
1945 27 13 0.00 0.0
1944 21 11 0.00 0.0
1943 42 18 0.00 0.0
1942 39 33 0.00 0.0
1941 54 43 0.06 0.0
1940 26 9 0.00 0.0
1939 52 40 0.02 0.0
1938 32 21 0.00 0.0
1937 42 n/a 0.39 0.0
1936 38 23 0.00 0.0
1935 38 20 0.00 0.0
1934 34 27 0.00 n/a
1933 37 26 0.05 0.0
1932 22 -5 n/a 0.0
1931 30 -10 0.00 0.0
1930 38 17 0.00 0.0
1929 68 46 0.15 0.0
1928 39 10 0.00 0.0
1927 32 13 0.00 0.0
1926 22 9 0.30 0.3
1925 41 25 0.00 0.0
1924 51 26 0.00 0.0
1923 42 21 0.00 0.0
1922 22 -4 0.00 0.0
1921 43 27 0.01 0.1
1920 38 18 0.00 0.0
1919 8 -7 0.00 0.0
1918 44 33 0.08 0.0
1917 51 33 0.00 0.0
1916 32 12 0.00 0.0
1915 35 22 0.00 0.0
1914 24 -1 0.00 0.0
1913 42 19 0.00 0.0
1912 47 32 0.02 0.0
1911 43 26 0.25 2.5
What's the all-time high for Boise on 12/15?
For the date of Dec 15, the highest temperature ever reached in Boise history is 68 °F which happened in 1929.
Highest Temperatures in Boise on December 15
Rank Temperature Year
1 68 °F 1929
2 55 °F 1968
2 55 °F 2002
4 54 °F 1941
4 54 °F 2006
6 52 °F 1946
6 52 °F 1939
6 52 °F 1977
9 51 °F 1924
9 51 °F 1917
What's the all-time low for Boise on 12/15?
For the date of Dec 15, the lowest temperature ever reached in Boise history is -10 °F which happened in 1931.
Lowest Temperatures in Boise on December 15
Rank Temperature Year
1 -10 °F 1931
2 -7 °F 1972
2 -7 °F 1919
4 -5 °F 1932
4 -5 °F 1985
6 -4 °F 1922
7 -1 °F 1914
8 4 °F 1967
9 9 °F 1926
9 9 °F 2005
9 9 °F 1940
Lowest High Temperatures in Boise on December 15
Rank Temperature Year
1 8 °F 1919
2 15 °F 1985
3 19 °F 1972
4 21 °F 1944
4 21 °F 1967
6 22 °F 1926
6 22 °F 1932
6 22 °F 1922
9 23 °F 2005
10 24 °F 1914
What's the most it has ever rained in Boise on 12/15?
For the date of Dec 15, the most precipitation ever recorded in Boise history is 0.82 inches which happened in 2009.
All-Time Most Precipitation in Boise on December 15
Rank Precipitation Year
1 0.82 inches 2009
2 0.55 inches 1982
3 0.39 inches 1937
4 0.33 inches 1977
5 0.30 inches 1926
6 0.28 inches 1984
7 0.26 inches 1957
8 0.25 inches 1911
9 0.19 inches 1995
10 0.15 inches 1929
All-Time Most Snow in Boise on December 15
Rank Precipitation Year
1 3.0 inches 1984
2 2.5 inches 1911
3 0.9 inches 1961
4 0.8 inches 1975
5 0.5 inches 2017
5 0.5 inches 1999
7 0.3 inches 1974
7 0.3 inches 1926
7 0.3 inches 1955
10 0.2 inches 2000
10 0.2 inches 2020
10 0.2 inches 1964
10 0.2 inches 1992
10 0.2 inches 1971
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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