Boise June 21 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of June 21.
June 21 All-Time Records
1940–2022
Highest temperature 102 °F 1955
Lowest temperature 40 °F 1989
Lowest daily high 64 °F 1948
Highest daily low 68 °F 2005
Most precipitation 0.3 inches 1967
Most snow none -
June 21 Average Weather
1991–2020 1
Average high 83.4 °F
Average low 54.8 °F
Chance precipitation 14.5%
Chance snow 0%
Boise June 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2022 83 51 0.00 0.0
2021 96 64 0.00 0.0
2020 82 60 0.00 0.0
2019 67 44 0.00 0.0
2018 82 58 0.00 0.0
2017 86 62 0.00 0.0
2016 83 60 0.00 0.0
2015 90 63 0.00 0.0
2014 86 54 0.00 0.0
2013 70 51 0.00 0.0
2012 96 59 0.00 0.0
2011 88 56 0.00 0.0
2010 72 48 0.00 0.0
2009 66 51 0.00 0.0
2008 101 65 0.01 0.0
2007 96 64 0.00 0.0
2006 79 51 0.00 0.0
2005 101 68 0.00 0.0
2004 86 56 0.00 0.0
2003 69 45 0.00 0.0
2002 86 63 0.00 0.0
2001 99 58 0.00 0.0
2000 92 56 0.00 0.0
1999 76 64 0.00 0.0
1998 82 51 0.00 0.0
1997 86 55 0.00 0.0
1996 69 51 0.02 0.0
1995 68 49 0.00 0.0
1994 97 56 0.00 0.0
1993 84 55 0.04 0.0
1992 96 60 0.00 0.0
1991 81 41 0.00 0.0
1990 93 57 0.00 0.0
1989 74 40 0.00 0.0
1988 101 67 0.02 0.0
1987 80 55 0.00 0.0
1986 77 48 0.00 0.0
1985 83 49 0.00 0.0
1984 66 44 0.00 0.0
1983 76 48 0.00 0.0
1982 85 60 0.00 0.0
1981 79 46 0.00 0.0
1980 90 54 0.00 0.0
1979 81 53 0.04 0.0
1978 84 52 0.00 0.0
1977 82 52 0.00 0.0
1976 74 52 0.00 0.0
1975 77 46 0.00 0.0
1974 88 57 0.00 0.0
1973 98 65 0.00 0.0
1972 80 54 0.00 0.0
1971 97 60 0.00 0.0
1970 98 66 0.00 0.0
1969 80 60 0.00 0.0
1968 90 58 0.00 0.0
1967 81 57 0.30 0.0
1966 74 55 0.00 0.0
1965 85 53 0.00 0.0
1964 67 45 0.00 0.0
1963 67 51 0.01 0.0
1962 87 57 0.00 0.0
1961 89 56 0.00 0.0
1960 75 40 0.00 0.0
1959 93 65 0.09 0.0
1958 92 58 0.00 0.0
1957 70 45 0.00 0.0
1956 71 43 0.00 0.0
1955 102 62 0.00 0.0
1954 84 52 0.00 0.0
1953 79 49 0.00 0.0
1952 68 49 0.09 0.0
1951 78 47 0.00 0.0
1950 78 57 0.01 0.0
1949 87 52 0.00 0.0
1948 64 51 0.13 0.0
1947 76 52 0.00 0.0
1946 91 63 0.00 0.0
1945 102 61 0.04 0.0
1944 65 52 0.16 0.0
1943 79 51 0.01 0.0
1942 75 43 0.00 0.0
1941 82 52 0.00 0.0
1940 88 48 0.00 0.0
All-Time Highest Temperatures in Boise on June 21
Rank Temperature Year
1 102 °F 1945
1 102 °F 1955
3 101 °F 2005
3 101 °F 2008
3 101 °F 1988
6 99 °F 2001
7 98 °F 1970
7 98 °F 1973
9 97 °F 1994
9 97 °F 1971
All-Time Lowest Temperatures in Boise on June 21
Rank Temperature Year
1 40 °F 1960
1 40 °F 1989
3 41 °F 1991
4 43 °F 1956
4 43 °F 1942
6 44 °F 2019
6 44 °F 1984
8 45 °F 1957
8 45 °F 2003
8 45 °F 1964
Lowest High Temperatures in Boise on June 21
Rank Temperature Year
1 64 °F 1948
2 65 °F 1944
3 66 °F 1984
3 66 °F 2009
5 67 °F 1963
5 67 °F 1964
5 67 °F 2019
8 68 °F 1995
8 68 °F 1952
10 69 °F 2003
10 69 °F 1996
All-Time Most Precipitation in Boise on June 21
Rank Precipitation Year
1 0.3 inches 1967
2 0.2 inches 1944
3 0.1 inches 1948
4 0.1 inches 1959
4 0.1 inches 1952
6 0.0 inches 1945
6 0.0 inches 1979
6 0.0 inches 1993
9 0.0 inches 1996
9 0.0 inches 1988
Weather Station Details
Years Station Coordinates
1940–2022 location