Lewiston September 18 Weather Records

Daily averages and all-time records for weather in Lewiston, Idaho for the date of September 18.
September 18 All-Time Records
1894–2024
Highest temperature 101 °F 1938
Lowest temperature 35 °F 1965
Lowest daily high 52 °F 1983
Highest daily low 62 °F 2014
Most precipitation 0.78 inches 1940
Most snow none -
September 18 Average Weather
1991–2020 1
Average high 78.1 °F
Average low 51.3 °F
Chance precipitation 16.3%
Chance snow 0%
Lewiston September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 83 55 0.00 0.0
2022 71 55 0.00 0.0
2021 67 54 0.36 0.0
2020 74 53 0.00 0.0
2019 69 53 0.01 0.0
2018 74 50 0.00 0.0
2017 62 51 0.29 0.0
2016 75 57 0.00 0.0
2015 75 48 0.00 0.0
2014 86 62 0.00 0.0
2013 69 49 0.04 0.0
2012 89 51 0.00 0.0
2011 79 56 0.00 0.0
2010 74 59 0.13 0.0
2009 86 51 0.00 0.0
2008 92 56 0.00 0.0
2007 66 49 0.00 0.0
2006 76 51 0.03 0.0
2005 76 44 0.00 n/a
2004 66 48 0.13 n/a
2003 75 43 0.00 n/a
2002 72 47 0.00 n/a
2001 83 53 0.00 n/a
2000 84 57 0.00 n/a
1999 86 53 0.00 n/a
1998 72 56 0.02 n/a
1997 66 47 0.02 n/a
1996 66 52 0.00 n/a
1995 81 56 0.00 0.0
1994 90 56 0.00 0.0
1993 75 45 0.00 0.0
1992 74 40 0.00 0.0
1991 82 56 0.00 0.0
1990 84 52 0.00 0.0
1989 70 51 0.11 0.0
1988 63 42 0.00 0.0
1987 80 45 0.00 0.0
1986 65 47 0.02 0.0
1985 59 46 0.03 0.0
1984 91 55 0.00 0.0
1983 52 46 0.33 0.0
1982 90 55 0.00 0.0
1981 97 60 0.00 0.0
1980 68 53 0.11 0.0
1979 91 55 0.00 0.0
1978 61 40 0.00 0.0
1977 74 54 0.01 0.0
1976 81 57 0.00 0.0
1975 73 44 0.00 0.0
1974 86 50 0.00 0.0
1973 69 55 0.08 0.0
1972 79 47 0.01 0.0
1971 73 38 0.00 0.0
1970 61 52 0.08 0.0
1969 74 53 0.28 0.0
1968 58 47 0.12 0.0
1967 82 57 0.00 0.0
1966 77 61 0.00 0.0
1965 64 35 0.00 0.0
1964 66 43 0.00 0.0
1963 76 43 0.00 0.0
1962 90 51 0.00 0.0
1961 74 49 0.00 0.0
1960 85 48 0.00 0.0
1959 65 50 0.00 0.0
1958 76 51 0.00 0.0
1957 62 41 0.00 0.0
1956 82 51 0.00 0.0
1955 70 39 0.00 0.0
1954 71 51 0.00 0.0
1953 84 44 0.00 0.0
1952 92 52 0.00 0.0
1951 89 51 0.00 0.0
1950 82 47 0.00 0.0
1949 78 45 0.00 0.0
1948 77 52 0.00 0.0
1947 58 43 0.04 0.0
1946 74 43 0.00 0.0
1945 71 45 0.01 0.0
1944 67 40 0.09 0.0
1943 88 56 0.00 0.0
1942 66 41 0.21 0.0
1941 76 52 0.00 0.0
1940 79 57 0.78 0.0
1939 91 50 0.00 n/a
1938 101 55 0.00 n/a
1937 89 53 0.00 n/a
1936 85 42 0.00 n/a
1935 78 45 0.00 n/a
1934 79 49 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 80 48 0.00 n/a
1898 86 62 0.00 n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 77 40 0.00 n/a
1894 84 55 0.00 n/a
What's the all-time high for Lewiston on 9/18?
For the date of Sep 18, the highest temperature ever reached in Lewiston history is 101 °F which happened in 1938.
Highest Temperatures in Lewiston on September 18
Rank Temperature Year
1 101 °F 1938
2 97 °F 1981
3 92 °F 2008
3 92 °F 1952
5 91 °F 1979
5 91 °F 1939
5 91 °F 1984
8 90 °F 1994
8 90 °F 1962
8 90 °F 1982
What's the all-time low for Lewiston on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Lewiston history is 35 °F which happened in 1965.
Lowest Temperatures in Lewiston on September 18
Rank Temperature Year
1 35 °F 1965
2 38 °F 1971
3 39 °F 1955
4 40 °F 1992
4 40 °F 1895
4 40 °F 1944
4 40 °F 1978
8 41 °F 1957
8 41 °F 1942
10 42 °F 1988
10 42 °F 1936
Lowest High Temperatures in Lewiston on September 18
Rank Temperature Year
1 52 °F 1983
2 58 °F 1968
2 58 °F 1947
4 59 °F 1985
5 61 °F 1978
5 61 °F 1970
7 62 °F 2017
7 62 °F 1957
9 63 °F 1988
10 64 °F 1965
What's the most it has ever rained in Lewiston on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Lewiston history is 0.78 inches which happened in 1940.
All-Time Most Precipitation in Lewiston on September 18
Rank Precipitation Year
1 0.78 inches 1940
2 0.36 inches 2021
3 0.33 inches 1983
4 0.29 inches 2017
5 0.28 inches 1969
6 0.21 inches 1942
7 0.13 inches 2004
7 0.13 inches 2010
9 0.12 inches 1968
10 0.11 inches 1980
10 0.11 inches 1989
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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