Lewiston September 15 Weather Records

Daily averages and all-time records for weather in Lewiston, Idaho for the date of September 15.
September 15 All-Time Records
1894–2024
Highest temperature 100 °F 1937
Lowest temperature 35 °F 1970
Lowest daily high 54 °F 1992
Highest daily low 67 °F 2013
Most precipitation 0.76 inches 1949
Most snow none -
September 15 Average Weather
1991–2020 1
Average high 79.3 °F
Average low 52.1 °F
Chance precipitation 15.2%
Chance snow 0%
Lewiston September 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 91 55 0.00 0.0
2022 75 55 0.00 0.0
2021 80 59 0.00 0.0
2020 76 53 0.00 0.0
2019 85 54 0.00 0.0
2018 72 46 0.00 0.0
2017 71 48 0.00 0.0
2016 83 48 0.00 0.0
2015 68 53 0.00 0.0
2014 88 49 0.00 0.0
2013 98 67 0.03 0.0
2012 90 57 0.00 0.0
2011 72 58 0.05 0.0
2010 83 53 0.00 0.0
2009 87 60 0.00 0.0
2008 89 52 0.00 0.0
2007 83 57 0.00 0.0
2006 63 40 0.00 0.0
2005 78 51 0.00 n/a
2004 70 54 0.08 n/a
2003 74 57 0.00 n/a
2002 86 57 0.00 n/a
2001 92 60 0.00 n/a
2000 83 60 0.00 n/a
1999 88 54 0.00 n/a
1998 97 61 0.00 n/a
1997 64 53 0.24 n/a
1996 65 50 0.08 n/a
1995 92 54 0.00 0.0
1994 79 51 0.00 0.0
1993 70 46 0.00 0.0
1992 54 47 0.30 0.0
1991 77 45 0.00 0.0
1990 84 58 0.01 0.0
1989 90 55 0.00 0.0
1988 86 53 0.00 0.0
1987 68 53 0.00 0.0
1986 65 47 0.02 0.0
1985 65 49 0.01 0.0
1984 84 53 0.00 0.0
1983 83 48 0.00 0.0
1982 71 37 0.00 0.0
1981 93 54 0.00 0.0
1980 77 49 0.00 0.0
1979 98 61 0.00 0.0
1978 70 50 0.00 0.0
1977 72 52 0.00 0.0
1976 82 49 0.00 0.0
1975 88 56 0.00 0.0
1974 88 49 0.00 0.0
1973 70 49 0.00 0.0
1972 82 49 0.00 0.0
1971 73 38 0.00 0.0
1970 68 35 0.00 0.0
1969 73 40 0.00 0.0
1968 64 51 0.01 0.0
1967 90 51 0.00 0.0
1966 76 55 0.00 0.0
1965 64 43 0.10 0.0
1964 78 47 0.00 0.0
1963 55 45 0.05 0.0
1962 75 48 0.00 0.0
1961 85 58 0.00 0.0
1960 84 54 0.00 0.0
1959 61 45 0.23 0.0
1958 75 50 0.00 0.0
1957 91 51 0.00 0.0
1956 88 48 0.00 0.0
1955 62 46 0.00 0.0
1954 65 51 0.65 0.0
1953 94 55 0.00 0.0
1952 85 43 0.00 0.0
1951 90 50 0.00 0.0
1950 76 40 0.03 0.0
1949 70 52 0.76 0.0
1948 74 51 0.00 0.0
1947 85 41 0.00 0.0
1946 69 55 0.46 0.0
1945 68 48 0.00 0.0
1944 72 56 0.00 0.0
1943 92 46 0.00 0.0
1942 82 42 0.00 0.0
1941 69 52 0.04 0.0
1940 78 56 0.06 0.0
1939 72 54 0.00 n/a
1938 96 53 0.00 n/a
1937 100 55 0.00 n/a
1936 69 38 0.03 n/a
1935 82 51 0.14 n/a
1934 86 42 0.00 0.0
1933 n/a n/a n/a n/a
1932 n/a n/a n/a n/a
1931 n/a n/a n/a n/a
1930 n/a n/a n/a n/a
1929 n/a n/a n/a n/a
1928 n/a n/a n/a n/a
1927 n/a n/a n/a n/a
1926 n/a n/a n/a n/a
1925 n/a n/a n/a n/a
1924 n/a n/a n/a n/a
1923 n/a n/a n/a n/a
1922 n/a n/a n/a n/a
1921 n/a n/a n/a n/a
1920 n/a n/a n/a n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 n/a n/a n/a n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 n/a n/a n/a n/a
1913 n/a n/a n/a n/a
1912 n/a n/a n/a n/a
1911 n/a n/a n/a n/a
1910 n/a n/a n/a n/a
1909 n/a n/a n/a n/a
1908 n/a n/a n/a n/a
1907 n/a n/a n/a n/a
1906 n/a n/a n/a n/a
1905 n/a n/a n/a n/a
1904 n/a n/a n/a n/a
1903 n/a n/a n/a n/a
1902 n/a n/a n/a n/a
1901 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 76 58 0.00 n/a
1898 84 58 0.00 n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 74 42 0.00 n/a
1894 70 50 0.10 n/a
What's the all-time high for Lewiston on 9/15?
For the date of Sep 15, the highest temperature ever reached in Lewiston history is 100 °F which happened in 1937.
Highest Temperatures in Lewiston on September 15
Rank Temperature Year
1 100 °F 1937
2 98 °F 1979
2 98 °F 2013
4 97 °F 1998
5 96 °F 1938
6 94 °F 1953
7 93 °F 1981
8 92 °F 2001
8 92 °F 1995
8 92 °F 1943
What's the all-time low for Lewiston on 9/15?
For the date of Sep 15, the lowest temperature ever reached in Lewiston history is 35 °F which happened in 1970.
Lowest Temperatures in Lewiston on September 15
Rank Temperature Year
1 35 °F 1970
2 37 °F 1982
3 38 °F 1936
3 38 °F 1971
5 40 °F 1950
5 40 °F 1969
5 40 °F 2006
8 41 °F 1947
9 42 °F 1934
9 42 °F 1895
9 42 °F 1942
Lowest High Temperatures in Lewiston on September 15
Rank Temperature Year
1 54 °F 1992
2 55 °F 1963
3 61 °F 1959
4 62 °F 1955
5 63 °F 2006
6 64 °F 1997
6 64 °F 1968
6 64 °F 1965
9 65 °F 1954
9 65 °F 1996
9 65 °F 1985
9 65 °F 1986
What's the most it has ever rained in Lewiston on 9/15?
For the date of Sep 15, the most precipitation ever recorded in Lewiston history is 0.76 inches which happened in 1949.
All-Time Most Precipitation in Lewiston on September 15
Rank Precipitation Year
1 0.76 inches 1949
2 0.65 inches 1954
3 0.46 inches 1946
4 0.30 inches 1992
5 0.24 inches 1997
6 0.23 inches 1959
7 0.14 inches 1935
8 0.10 inches 1894
8 0.10 inches 1965
10 0.08 inches 2004
10 0.08 inches 1996
Weather Station Details
Years Station Coordinates
1948–2024 Lewiston Nez Perce County Airport location
1894–1947 Lewiston WTP location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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