Lewiston August 18 Weather Records

Daily averages and all-time records for weather in Lewiston, Idaho for the date of August 18.
August 18 All-Time Records
1894–2024
Highest temperature 106 °F 1977
Lowest temperature 47 °F 1973
Lowest daily high 61 °F 1980
Highest daily low 77 °F 2020
Most precipitation 0.21 inches 1968
Most snow none -
August 18 Average Weather
1991–2020 1
Average high 89.2 °F
Average low 59.6 °F
Chance precipitation 11.3%
Chance snow 0%
Lewiston August 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 97 70 0.01 0.0
2022 103 68 0.00 0.0
2021 78 59 0.00 0.0
2020 102 77 0.03 0.0
2019 93 57 0.00 0.0
2018 91 63 0.00 0.0
2017 94 57 0.00 0.0
2016 99 65 0.00 0.0
2015 92 58 0.00 0.0
2014 96 62 0.00 0.0
2013 92 64 0.00 0.0
2012 102 64 0.00 0.0
2011 86 55 0.00 0.0
2010 93 71 0.00 0.0
2009 91 60 0.00 0.0
2008 101 68 0.13 0.0
2007 84 56 0.00 0.0
2006 93 58 0.00 0.0
2005 84 55 0.00 n/a
2004 95 67 0.00 n/a
2003 96 62 0.00 n/a
2002 85 58 0.00 n/a
2001 86 62 0.00 n/a
2000 85 58 0.00 n/a
1999 98 66 0.00 n/a
1998 79 50 0.00 n/a
1997 89 67 0.00 n/a
1996 77 48 0.00 n/a
1995 76 48 0.00 0.0
1994 93 56 0.00 0.0
1993 85 55 0.00 0.0
1992 102 65 0.00 0.0
1991 100 64 0.00 0.0
1990 73 59 0.00 0.0
1989 87 57 0.00 0.0
1988 80 55 0.00 0.0
1987 86 50 0.00 0.0
1986 100 63 0.00 0.0
1985 93 57 0.00 0.0
1984 88 66 0.00 0.0
1983 89 59 0.00 0.0
1982 94 58 0.00 0.0
1981 100 64 0.00 0.0
1980 61 48 0.14 0.0
1979 88 56 0.00 0.0
1978 81 51 0.00 0.0
1977 106 68 0.00 0.0
1976 78 55 0.00 0.0
1975 71 59 0.14 0.0
1974 85 59 0.00 0.0
1973 81 47 0.00 0.0
1972 87 48 0.00 0.0
1971 93 56 0.00 0.0
1970 86 52 0.00 0.0
1969 89 59 0.00 0.0
1968 70 50 0.21 0.0
1967 105 67 0.00 0.0
1966 94 55 0.00 0.0
1965 95 60 0.00 0.0
1964 69 54 0.02 0.0
1963 88 61 0.00 0.0
1962 82 58 0.00 0.0
1961 99 56 0.00 0.0
1960 95 59 0.00 0.0
1959 79 47 0.00 0.0
1958 87 62 0.00 0.0
1957 94 59 0.00 0.0
1956 93 50 0.00 0.0
1955 97 54 0.00 0.0
1954 85 51 0.00 0.0
1953 102 58 0.00 0.0
1952 81 55 0.00 0.0
1951 96 53 0.00 0.0
1950 100 61 0.00 0.0
1949 91 58 0.00 0.0
1948 89 55 0.00 0.0
1947 96 50 0.00 0.0
1946 102 47 0.00 0.0
1945 96 55 0.00 0.0
1944 95 52 0.00 0.0
1943 95 51 0.00 0.0
1942 106 61 0.00 0.0
1941 97 60 0.00 0.0
1940 102 58 0.00 0.0
1939 94 57 0.00 n/a
1938 74 60 0.00 n/a
1937 100 58 0.00 n/a
1936 93 58 0.00 n/a
1935 81 57 0.04 n/a
1934 90 58 0.00 n/a
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 99 58 0.00 n/a
1898 93 62 0.00 n/a
1897 106 58 0.00 n/a
1896 94 55 0.00 n/a
1895 89 48 0.00 n/a
1894 100 57 n/a n/a
What's the all-time high for Lewiston on 8/18?
For the date of Aug 18, the highest temperature ever reached in Lewiston history is 106 °F which has happened 3 times, most recently in 1977.
Highest Temperatures in Lewiston on August 18
Rank Temperature Year
1 106 °F 1942
1 106 °F 1977
1 106 °F 1897
4 105 °F 1967
5 103 °F 2022
6 102 °F 1992
6 102 °F 1953
6 102 °F 2012
6 102 °F 1946
6 102 °F 2020
6 102 °F 1940
What's the all-time low for Lewiston on 8/18?
For the date of Aug 18, the lowest temperature ever reached in Lewiston history is 47 °F which has happened 3 times, most recently in 1973.
Lowest Temperatures in Lewiston on August 18
Rank Temperature Year
1 47 °F 1946
1 47 °F 1973
1 47 °F 1959
4 48 °F 1980
4 48 °F 1995
4 48 °F 1972
4 48 °F 1996
4 48 °F 1895
9 50 °F 1998
9 50 °F 1987
9 50 °F 1956
9 50 °F 1947
9 50 °F 1968
Lowest High Temperatures in Lewiston on August 18
Rank Temperature Year
1 61 °F 1980
2 69 °F 1964
3 70 °F 1968
4 71 °F 1975
5 73 °F 1990
6 74 °F 1938
7 76 °F 1995
8 77 °F 1996
9 78 °F 2021
9 78 °F 1976
What's the most it has ever rained in Lewiston on 8/18?
For the date of Aug 18, the most precipitation ever recorded in Lewiston history is 0.21 inches which happened in 1968.
All-Time Most Precipitation in Lewiston on August 18
Rank Precipitation Year
1 0.21 inches 1968
2 0.14 inches 1975
2 0.14 inches 1980
4 0.13 inches 2008
5 0.04 inches 1935
6 0.03 inches 2020
7 0.02 inches 1964
8 0.01 inches 2023
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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