Boise - Lowest Temperature for Each Year





Here's where you'll find answers to your questions about the lowest temperatures and coldest days in Boise, Idaho. For instance: When was the last time Boise got colder than -20 °F? How cold did Boise get in 2018?

This page gives the lowest temperature for each year in Boise and the date that it happened. A date with a plus sign beside it means the lowest temperature also occurred on at least one other day earlier that year.

These records go back to 1911, with just a few years missing data. The lowest temperature measured during that time was -28 degrees Fahrenheit (-33 Celsius) on January 22, 1930.

Since 1940 the temperature extremes were observed at Boise Airport. Before then, the weather station was on the outskirts of Boise.

Lowest Boise temperatures in recent years
Min °F Date Min °C
9 February 20, 2018 -13
-11 January 06, 2017 -24
0 December 18, 2016 -18
6 January 01, 2015 -14
1 November 15, 2014 -17
-7 December 09, 2013 -22
13 December 31, 2012 + -11
9 January 01, 2011 -13
7 November 25, 2010 -14
Lowest temperature recorded at Boise each year
Min °F Date Min °C
5 January 24, 2008 -15
7 January 13, 2007 + -14
10 December 01, 2006 -12
7 December 08, 2005 -14
1 January 05, 2004 -17
16 December 30, 2003 -9
12 January 29, 2002 -11
7 January 30, 2001 -14
14 November 17, 2000 -10
16 January 27, 1999 -9
-2 December 21, 1998 -19
8 January 13, 1997 + -13
1 February 03, 1996 -17
9 January 02, 1995 -13
7 November 21, 1994 -14
0 November 24, 1993 -18
0 December 06, 1992 -18
-12 January 05, 1991 -24
-25 December 22, 1990 -32
-15 February 05, 1989 -26
-4 December 28, 1988 -20
0 January 16, 1987 -18
1 January 13, 1986 -17
-12 February 04, 1985 -24
-13 January 18, 1984 -25
-18 December 23, 1983 -28
-10 January 06, 1982 -23
5 December 31, 1981 + -15
-7 January 27, 1980 -22
-13 January 30, 1979 -25
-9 December 31, 1978 -23
-14 January 08, 1977 -26
3 February 05, 1976 -16
-5 January 02, 1975 -21
-5 January 09, 1974 -21
11 January 27, 1973 -12
-23 December 10, 1972 -31
6 March 01, 1971 + -14
5 January 07, 1970 -15
5 January 29, 1969 -15
6 December 21, 1968 + -14
2 December 16, 1967 + -17
2 December 27, 1966 -17
8 December 23, 1965 + -13
1 December 17, 1964 + -17
-7 January 12, 1963 -22
-12 January 23, 1962 + -24
4 December 11, 1961 + -16
-4 January 18, 1960 -20
3 January 04, 1959 + -16
13 November 17, 1958 -11
-9 January 30, 1957 + -23
-6 February 01, 1956 -21
-3 November 15, 1955 -19
7 December 27, 1954 -14
13 December 27, 1953 + -11
-2 January 18, 1952 + -19
1 January 30, 1951 -17
-17 January 31, 1950 -27
-7 January 20, 1949 -22
0 December 23, 1948 -18
-10 January 15, 1947 -23
11 January 15, 1946 + -12
0 December 18, 1945 -18
0 January 09, 1944 -18
-10 January 18, 1943 -23
-13 January 01, 1942 -25
0 December 31, 1941 -18
9 December 15, 1940 + -13
9 February 09, 1939 -13
5 November 12, 1938 -15
-25 January 21, 1937 -32
-9 February 08, 1936 -23
-18 January 20, 1935 -28
16 December 31, 1934 -9
-21 February 10, 1933 -29
-16 December 11, 1932 -27
-7 December 15, 1931 -22
-28 January 22, 1930 -33
1929
-5 December 22, 1928 -21
-4 December 31, 1927 + -20
-7 December 14, 1926 -22
7 January 16, 1925 -14
1924
-3 February 09, 1923 -19
-18 January 19, 1922 -28
9 February 07, 1921 + -13
1920
-16 December 08, 1919 -27
-7 December 31, 1918 -22
-9 January 17, 1917 -23
-8 January 20, 1916 -22
1915
-8 December 17, 1914 -22
-4 January 06, 1913 -20
-15 January 08, 1912 -26
0 January 17, 1911 -18
Reference

Jay Lawrimore. 2016. Global Summary of the Year, Version 1.0. NOAA National Centers for Environmental Information. 

Boise - Extremes
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