Boise July 20 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of July 20.
July 20 All-Time Records
1911–2024
Highest temperature 110 °F 1931
Lowest temperature 43 °F 1972
Lowest daily high 72 °F 1972
Highest daily low 73 °F 2021
Most precipitation 0.22 inches 1914
Most snow none -
July 20 Average Weather
1991–2020 1
Average high 93.4 °F
Average low 62.2 °F
Chance precipitation 7.4%
Chance snow 0%
Boise July 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 102 72 0.00 0.0
2022 101 65 0.00 0.0
2021 92 73 0.05 0.0
2020 95 61 0.00 0.0
2019 89 53 0.00 0.0
2018 98 63 0.00 0.0
2017 92 61 0.00 0.0
2016 91 59 0.00 0.0
2015 96 64 0.00 0.0
2014 98 64 0.06 0.0
2013 101 64 0.00 0.0
2012 98 70 0.00 0.0
2011 82 54 0.00 0.0
2010 94 56 0.00 0.0
2009 94 58 0.00 0.0
2008 99 66 0.00 0.0
2007 97 63 0.00 0.0
2006 101 68 0.00 0.0
2005 100 65 0.00 0.0
2004 89 63 0.00 0.0
2003 103 71 0.00 0.0
2002 92 63 0.00 0.0
2001 92 57 0.00 0.0
2000 95 68 0.00 0.0
1999 89 59 0.00 0.0
1998 98 61 0.00 0.0
1997 91 58 0.00 0.0
1996 87 52 0.00 0.0
1995 93 60 0.00 0.0
1994 96 55 0.00 0.0
1993 79 57 0.00 0.0
1992 88 60 0.00 0.0
1991 94 58 0.00 0.0
1990 92 69 0.00 0.0
1989 100 66 0.00 0.0
1988 100 56 0.00 0.0
1987 87 53 0.00 0.0
1986 93 55 0.00 0.0
1985 99 56 0.00 0.0
1984 89 64 0.00 0.0
1983 80 56 0.00 0.0
1982 95 57 0.00 0.0
1981 91 56 0.00 0.0
1980 88 50 0.00 0.0
1979 99 67 0.00 0.0
1978 84 53 0.00 0.0
1977 97 62 0.00 0.0
1976 95 58 0.02 0.0
1975 95 63 0.01 0.0
1974 96 61 0.00 0.0
1973 87 62 0.00 0.0
1972 72 43 0.00 0.0
1971 91 66 0.00 0.0
1970 99 69 0.01 0.0
1969 97 63 0.00 0.0
1968 85 48 0.00 0.0
1967 90 55 0.00 0.0
1966 85 56 0.00 0.0
1965 89 63 0.12 0.0
1964 96 63 0.00 0.0
1963 98 61 0.00 0.0
1962 96 58 0.00 0.0
1961 94 54 0.00 0.0
1960 103 66 0.00 0.0
1959 100 64 0.00 0.0
1958 92 59 0.00 0.0
1957 89 54 0.00 0.0
1956 93 68 0.00 0.0
1955 92 64 0.00 0.0
1954 90 58 0.00 0.0
1953 81 53 0.00 0.0
1952 89 55 0.00 0.0
1951 84 57 0.00 0.0
1950 83 51 0.00 0.0
1949 76 49 0.00 0.0
1948 82 50 0.00 0.0
1947 93 62 0.00 0.0
1946 100 60 0.00 0.0
1945 97 64 0.00 0.0
1944 88 64 0.00 0.0
1943 92 71 0.00 0.0
1942 91 56 0.00 0.0
1941 94 61 0.00 0.0
1940 87 59 0.00 0.0
1939 87 50 0.00 0.0
1938 97 54 0.00 0.0
1937 97 53 0.00 0.0
1936 103 n/a 0.00 n/a
1935 96 61 0.00 n/a
1934 92 n/a 0.00 n/a
1933 85 50 0.00 0.0
1932 78 n/a 0.00 n/a
1931 110 50 n/a n/a
1930 90 44 0.00 n/a
1929 94 53 0.00 0.0
1928 90 50 0.00 n/a
1927 95 49 0.00 n/a
1926 87 58 0.00 0.0
1925 95 51 0.00 0.0
1924 79 51 0.00 0.0
1923 95 53 0.00 0.0
1922 89 64 0.12 0.0
1921 93 61 0.00 0.0
1920 97 53 0.00 0.0
1919 97 59 0.00 0.0
1918 87 53 0.00 0.0
1917 97 57 0.00 0.0
1916 90 47 0.00 0.0
1915 95 50 0.00 0.0
1914 81 61 0.22 0.0
1913 97 63 0.19 0.0
1912 88 54 0.01 0.0
1911 97 63 0.14 0.0
What's the all-time high for Boise on 7/20?
For the date of Jul 20, the highest temperature ever reached in Boise history is 110 °F which happened in 1931.
Highest Temperatures in Boise on July 20
Rank Temperature Year
1 110 °F 1931
2 103 °F 1960
2 103 °F 1936
2 103 °F 2003
5 102 °F 2023
6 101 °F 2006
6 101 °F 2022
6 101 °F 2013
9 100 °F 1988
9 100 °F 1946
9 100 °F 2005
9 100 °F 1959
9 100 °F 1989
What's the all-time low for Boise on 7/20?
For the date of Jul 20, the lowest temperature ever reached in Boise history is 43 °F which happened in 1972.
Lowest Temperatures in Boise on July 20
Rank Temperature Year
1 43 °F 1972
2 44 °F 1930
3 47 °F 1916
4 48 °F 1968
5 49 °F 1949
5 49 °F 1927
7 50 °F 1931
7 50 °F 1928
7 50 °F 1948
7 50 °F 1933
7 50 °F 1915
7 50 °F 1939
7 50 °F 1980
Lowest High Temperatures in Boise on July 20
Rank Temperature Year
1 72 °F 1972
2 76 °F 1949
3 78 °F 1932
4 79 °F 1924
4 79 °F 1993
6 80 °F 1983
7 81 °F 1914
7 81 °F 1953
9 82 °F 2011
9 82 °F 1948
What's the most it has ever rained in Boise on 7/20?
For the date of Jul 20, the most precipitation ever recorded in Boise history is 0.22 inches which happened in 1914.
All-Time Most Precipitation in Boise on July 20
Rank Precipitation Year
1 0.22 inches 1914
2 0.19 inches 1913
3 0.14 inches 1911
4 0.12 inches 1922
4 0.12 inches 1965
6 0.06 inches 2014
7 0.05 inches 2021
8 0.02 inches 1976
9 0.01 inches 1970
9 0.01 inches 1975
9 0.01 inches 1912
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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