Lewiston September 30 Weather Records

Daily averages and all-time records for weather in Lewiston, Idaho for the date of September 30.
September 30 All-Time Records
1894–2024
Highest temperature 89 °F 1976
Lowest temperature 30 °F 1954
Lowest daily high 52 °F 2019
Highest daily low 58 °F 2005
Most precipitation 0.82 inches 2000
Most snow none -
September 30 Average Weather
1991–2020 1
Average high 71.7 °F
Average low 47.1 °F
Chance precipitation 22.1%
Chance snow 0%
Lewiston September 30 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 55 49 0.06 0.0
2022 69 54 0.06 0.0
2021 80 49 0.00 0.0
2020 83 50 0.00 0.0
2019 52 37 0.00 0.0
2018 65 46 0.00 0.0
2017 68 55 0.02 0.0
2016 82 55 0.01 0.0
2015 81 49 0.00 0.0
2014 67 50 0.07 0.0
2013 64 49 0.04 0.0
2012 80 52 0.00 0.0
2011 83 49 0.00 0.0
2010 86 53 0.00 0.0
2009 59 39 0.00 0.0
2008 83 51 0.00 0.0
2007 67 45 0.04 0.0
2006 83 50 0.00 0.0
2005 66 58 0.13 n/a
2004 76 49 0.00 n/a
2003 81 51 0.00 n/a
2002 59 45 0.00 n/a
2001 78 45 0.00 n/a
2000 64 57 0.82 n/a
1999 73 46 0.00 n/a
1998 77 49 0.00 n/a
1997 80 57 0.00 n/a
1996 83 48 0.00 n/a
1995 61 52 0.02 0.0
1994 76 55 0.00 0.0
1993 83 55 0.00 0.0
1992 85 54 0.00 0.0
1991 85 50 0.00 0.0
1990 84 53 0.00 0.0
1989 74 58 0.13 0.0
1988 81 48 0.00 0.0
1987 84 49 0.00 0.0
1986 61 47 0.00 0.0
1985 64 34 0.00 0.0
1984 73 41 0.00 0.0
1983 67 41 0.00 0.0
1982 66 37 0.00 0.0
1981 67 41 0.00 0.0
1980 72 53 0.00 0.0
1979 76 51 0.00 0.0
1978 69 53 0.00 0.0
1977 60 46 0.11 0.0
1976 89 55 0.00 0.0
1975 80 45 0.00 0.0
1974 77 42 0.00 0.0
1973 69 53 0.00 0.0
1972 78 42 0.00 0.0
1971 60 35 0.00 0.0
1970 77 48 0.00 0.0
1969 66 55 0.04 0.0
1968 80 48 0.00 0.0
1967 65 52 0.07 0.0
1966 79 44 0.00 0.0
1965 76 42 0.00 0.0
1964 69 47 0.12 0.0
1963 83 54 0.00 0.0
1962 72 42 0.00 0.0
1961 61 38 0.08 0.0
1960 78 43 0.00 0.0
1959 61 38 0.03 0.0
1958 71 35 0.00 0.0
1957 85 54 0.00 0.0
1956 67 43 0.04 0.0
1955 67 35 0.00 0.0
1954 59 30 0.00 0.0
1953 84 48 0.00 0.0
1952 79 45 0.00 0.0
1951 64 54 0.17 0.0
1950 58 36 0.00 0.0
1949 60 50 0.04 0.0
1948 68 39 0.00 0.0
1947 83 52 0.00 0.0
1946 75 41 0.00 0.0
1945 73 37 0.00 0.0
1944 74 44 0.11 0.0
1943 n/a n/a 0.00 0.0
1942 76 44 0.00 0.0
1941 72 49 0.02 0.0
1940 65 53 0.61 0.0
1939 79 41 0.00 n/a
1938 84 56 0.19 n/a
1937 68 42 0.00 n/a
1936 78 41 0.00 n/a
1935 87 40 0.00 n/a
1934 84 41 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 74 42 0.00 n/a
1898 74 46 0.14 n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 75 50 0.11 n/a
1894 65 39 0.00 n/a
What's the all-time high for Lewiston on 9/30?
For the date of Sep 30, the highest temperature ever reached in Lewiston history is 89 °F which happened in 1976.
Highest Temperatures in Lewiston on September 30
Rank Temperature Year
1 89 °F 1976
2 87 °F 1935
3 86 °F 2010
4 85 °F 1992
4 85 °F 1991
4 85 °F 1957
7 84 °F 1987
7 84 °F 1934
7 84 °F 1938
7 84 °F 1953
7 84 °F 1990
What's the all-time low for Lewiston on 9/30?
For the date of Sep 30, the lowest temperature ever reached in Lewiston history is 30 °F which happened in 1954.
Lowest Temperatures in Lewiston on September 30
Rank Temperature Year
1 30 °F 1954
2 34 °F 1985
3 35 °F 1971
3 35 °F 1955
3 35 °F 1958
6 36 °F 1950
7 37 °F 2019
7 37 °F 1982
7 37 °F 1945
10 38 °F 1961
10 38 °F 1959
Lowest High Temperatures in Lewiston on September 30
Rank Temperature Year
1 52 °F 2019
2 55 °F 2023
3 58 °F 1950
4 59 °F 1954
4 59 °F 2002
4 59 °F 2009
7 60 °F 1977
7 60 °F 1971
7 60 °F 1949
10 61 °F 1961
10 61 °F 1959
10 61 °F 1986
10 61 °F 1995
What's the most it has ever rained in Lewiston on 9/30?
For the date of Sep 30, the most precipitation ever recorded in Lewiston history is 0.82 inches which happened in 2000.
All-Time Most Precipitation in Lewiston on September 30
Rank Precipitation Year
1 0.82 inches 2000
2 0.61 inches 1940
3 0.19 inches 1938
4 0.17 inches 1951
5 0.14 inches 1898
6 0.13 inches 2005
6 0.13 inches 1989
8 0.12 inches 1964
9 0.11 inches 1977
9 0.11 inches 1944
9 0.11 inches 1895
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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