Boise September 19 Weather Records

Daily averages and all-time records for weather in Boise, Idaho for the date of September 19.
September 19 All-Time Records
1911–2024
Highest temperature 97 °F 1917
Lowest temperature 31 °F 1978
Lowest daily high 56 °F 1940
Highest daily low 62 °F 2009
Most precipitation 0.66 inches 1959
Most snow none -
September 19 Average Weather
1991–2020 1
Average high 78.4 °F
Average low 51.0 °F
Chance precipitation 14.3%
Chance snow 0%
Boise September 19 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 76 51 0.00 0.0
2022 83 52 0.00 0.0
2021 66 50 0.08 0.0
2020 74 54 0.00 0.0
2019 66 47 0.00 0.0
2018 74 45 0.00 0.0
2017 60 46 0.10 0.0
2016 83 53 0.00 0.0
2015 77 46 0.00 0.0
2014 79 57 0.00 0.0
2013 74 46 0.00 0.0
2012 84 53 0.00 0.0
2011 81 54 0.00 0.0
2010 80 57 0.00 0.0
2009 89 62 0.00 0.0
2008 94 61 0.02 0.0
2007 68 50 0.03 0.0
2006 65 47 0.01 0.0
2005 81 50 0.00 0.0
2004 66 47 0.00 0.0
2003 79 49 0.00 0.0
2002 76 45 0.00 0.0
2001 79 54 0.00 0.0
2000 81 59 0.00 0.0
1999 81 50 0.00 0.0
1998 67 50 0.00 0.0
1997 71 41 0.00 0.0
1996 64 50 0.00 0.0
1995 80 46 0.00 0.0
1994 86 50 0.00 0.0
1993 78 50 0.00 0.0
1992 77 49 0.00 0.0
1991 87 50 0.00 0.0
1990 80 46 0.00 0.0
1989 69 39 0.00 0.0
1988 63 49 0.14 0.0
1987 80 44 0.00 0.0
1986 58 43 0.14 0.0
1985 64 34 0.00 0.0
1984 87 58 0.00 0.0
1983 61 37 0.00 0.0
1982 73 49 0.44 0.0
1981 76 47 0.01 0.0
1980 70 44 0.00 0.0
1979 81 57 0.00 0.0
1978 62 31 0.00 0.0
1977 73 50 0.02 0.0
1976 70 53 0.00 0.0
1975 75 42 0.00 0.0
1974 84 46 0.00 0.0
1973 75 57 0.00 0.0
1972 73 45 0.02 0.0
1971 73 41 0.00 0.0
1970 64 49 0.48 0.0
1969 69 52 0.21 0.0
1968 61 44 0.00 0.0
1967 79 53 0.00 0.0
1966 76 50 0.00 0.0
1965 62 32 0.00 0.0
1964 68 33 0.00 0.0
1963 80 57 0.26 0.0
1962 82 48 0.00 0.0
1961 67 42 0.00 0.0
1960 87 47 0.00 0.0
1959 66 52 0.66 0.0
1958 76 49 0.00 0.0
1957 59 39 0.00 0.0
1956 86 59 0.00 0.0
1955 62 48 0.00 0.0
1954 73 40 0.00 0.0
1953 84 54 0.00 0.0
1952 90 55 0.00 0.0
1951 87 56 0.00 0.0
1950 73 47 0.00 0.0
1949 87 49 0.00 0.0
1948 76 50 0.00 0.0
1947 62 34 0.00 0.0
1946 76 43 0.00 0.0
1945 65 35 0.00 0.0
1944 66 35 0.00 0.0
1943 71 38 0.00 0.0
1942 69 38 0.00 0.0
1941 62 47 0.00 0.0
1940 56 48 0.14 0.0
1939 90 47 0.00 0.0
1938 87 62 0.00 0.0
1937 75 61 0.00 0.0
1936 85 40 0.00 0.0
1935 83 43 0.00 0.0
1934 76 48 0.00 0.0
1933 84 45 0.00 0.0
1932 67 34 0.00 n/a
1931 64 48 0.00 n/a
1930 93 44 0.00 n/a
1929 76 41 0.00 n/a
1928 78 42 0.00 n/a
1927 84 38 0.00 0.0
1926 79 33 0.00 0.0
1925 67 46 0.20 0.0
1924 n/a n/a 0.00 0.0
1923 83 41 0.00 0.0
1922 92 41 0.00 0.0
1921 63 47 0.40 0.0
1920 85 48 0.00 0.0
1919 79 50 0.00 0.0
1918 89 47 0.00 0.0
1917 97 52 0.00 0.0
1916 84 41 0.00 0.0
1915 84 41 0.00 0.0
1914 80 42 0.00 0.0
1913 80 46 0.00 0.0
1912 70 46 0.00 0.0
1911 75 34 0.00 0.0
What's the all-time high for Boise on 9/19?
For the date of Sep 19, the highest temperature ever reached in Boise history is 97 °F which happened in 1917.
Highest Temperatures in Boise on September 19
Rank Temperature Year
1 97 °F 1917
2 94 °F 2008
3 93 °F 1930
4 92 °F 1922
5 90 °F 1939
5 90 °F 1952
7 89 °F 1918
7 89 °F 2009
9 87 °F 1960
9 87 °F 1949
9 87 °F 1938
9 87 °F 1984
9 87 °F 1951
9 87 °F 1991
What's the all-time low for Boise on 9/19?
For the date of Sep 19, the lowest temperature ever reached in Boise history is 31 °F which happened in 1978.
Lowest Temperatures in Boise on September 19
Rank Temperature Year
1 31 °F 1978
2 32 °F 1965
3 33 °F 1964
3 33 °F 1926
5 34 °F 1985
5 34 °F 1932
5 34 °F 1947
5 34 °F 1911
9 35 °F 1944
9 35 °F 1945
Lowest High Temperatures in Boise on September 19
Rank Temperature Year
1 56 °F 1940
2 58 °F 1986
3 59 °F 1957
4 60 °F 2017
5 61 °F 1968
5 61 °F 1983
7 62 °F 1955
7 62 °F 1965
7 62 °F 1978
7 62 °F 1941
7 62 °F 1947
What's the most it has ever rained in Boise on 9/19?
For the date of Sep 19, the most precipitation ever recorded in Boise history is 0.66 inches which happened in 1959.
All-Time Most Precipitation in Boise on September 19
Rank Precipitation Year
1 0.66 inches 1959
2 0.48 inches 1970
3 0.44 inches 1982
4 0.40 inches 1921
5 0.26 inches 1963
6 0.21 inches 1969
7 0.20 inches 1925
8 0.14 inches 1988
8 0.14 inches 1986
8 0.14 inches 1940
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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