Juneau September 18 Weather Records

Daily averages and all-time records for weather in Juneau, Alaska for the date of September 18.
September 18 All-Time Records
1890–2024
Highest temperature 72 °F 1896
Lowest temperature 30 °F 2018
Lowest daily high 46 °F 2003
Highest daily low 53 °F 1999
Most precipitation 1.65 inches 1946
Most snow none -
September 18 Average Weather
1991–2020 1
Average high 55.5 °F
Average low 43.8 °F
Chance precipitation 73.6%
Chance snow 0.1%
Juneau September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 51 47 0.68 0.0
2022 59 41 0.08 0.0
2021 62 37 0.00 0.0
2020 54 48 0.27 0.0
2019 53 43 0.42 0.0
2018 59 30 0.00 0.0
2017 51 46 0.08 0.0
2016 56 46 0.18 0.0
2015 53 44 1.34 0.0
2014 56 50 0.29 0.0
2013 53 48 0.17 0.0
2012 54 40 0.00 0.0
2011 52 40 0.04 0.0
2010 70 36 0.00 0.0
2009 58 48 0.10 0.0
2008 53 40 0.13 0.0
2007 57 38 0.00 0.0
2006 51 43 0.04 0.0
2005 53 49 0.80 0.0
2004 59 32 0.00 0.0
2003 46 41 0.26 0.0
2002 49 43 0.80 0.0
2001 57 49 0.03 0.0
2000 59 41 0.01 0.0
1999 57 53 1.57 0.0
1998 61 34 0.00 0.0
1997 55 50 1.26 0.0
1996 57 48 0.49 0.0
1995 57 47 0.00 0.0
1994 56 48 0.82 0.0
1993 50 41 0.18 0.0
1992 55 47 1.05 0.0
1991 58 50 0.63 0.0
1990 51 45 0.50 0.0
1989 48 42 0.22 0.0
1988 51 40 0.07 0.0
1987 50 47 0.13 0.0
1986 59 39 0.00 0.0
1985 52 31 0.00 0.0
1984 53 48 0.10 0.0
1983 57 33 0.00 0.0
1982 58 42 0.00 0.0
1981 58 48 0.16 0.0
1980 52 46 0.04 0.0
1979 59 45 0.00 0.0
1978 53 35 0.23 0.0
1977 54 46 0.03 0.0
1976 56 42 0.04 0.0
1975 56 48 0.22 0.0
1974 53 45 0.05 0.0
1973 61 31 0.00 0.0
1972 57 35 0.00 0.0
1971 50 45 0.59 0.0
1970 53 45 0.46 0.0
1969 61 41 0.00 0.0
1968 53 36 0.00 0.0
1967 55 47 1.21 0.0
1966 56 42 0.27 0.0
1965 58 48 0.39 0.0
1964 56 46 0.15 0.0
1963 52 48 0.39 0.0
1962 49 40 0.92 0.0
1961 55 40 1.54 0.0
1960 50 42 0.26 0.0
1959 65 44 0.00 0.0
1958 64 40 0.00 0.0
1957 63 45 0.00 0.0
1956 57 51 0.59 0.0
1955 n/a n/a 0.30 0.0
1954 59 41 0.10 0.0
1953 50 47 0.45 0.0
1952 56 50 0.71 0.0
1951 57 50 0.19 0.0
1950 51 47 0.18 0.0
1949 54 42 0.00 0.0
1948 54 46 1.10 n/a
1947 50 43 0.23 0.0
1946 56 50 1.65 0.0
1945 58 37 0.10 0.0
1944 63 47 0.09 0.0
1943 55 43 0.00 0.0
1942 n/a n/a n/a n/a
1941 n/a n/a n/a n/a
1940 n/a n/a n/a n/a
1939 n/a n/a n/a n/a
1938 n/a n/a n/a n/a
1937 n/a n/a n/a n/a
1936 n/a n/a n/a n/a
1935 n/a n/a n/a n/a
1934 n/a n/a n/a 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 56 49 0.78 0.0
1915 52 n/a 0.37 n/a
1914 52 36 n/a n/a
1913 55 35 n/a n/a
1912 51 47 0.90 0.0
1911 53 48 0.00 0.0
1910 64 42 0.00 0.0
1909 55 45 1.05 0.0
1908 50 42 0.60 0.0
1907 58 48 0.20 0.0
1906 55 46 0.05 0.0
1905 56 46 0.60 0.0
1904 58 41 n/a 0.0
1903 52 44 0.12 0.0
1902 55 43 0.00 0.0
1901 55 47 1.43 n/a
1900 56 47 0.50 n/a
1899 54 50 0.43 n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 72 38 0.00 n/a
1895 49 39 0.19 n/a
1894 n/a n/a n/a n/a
1893 n/a n/a n/a n/a
1892 n/a n/a n/a n/a
1891 n/a n/a n/a n/a
1890 n/a n/a n/a n/a
What's the all-time high for Juneau on 9/18?
For the date of Sep 18, the highest temperature ever reached in Juneau history is 72 °F which happened in 1896.
Highest Temperatures in Juneau on September 18
Rank Temperature Year
1 72 °F 1896
2 70 °F 2010
3 65 °F 1959
4 64 °F 1958
4 64 °F 1910
6 63 °F 1944
6 63 °F 1957
8 62 °F 2021
9 61 °F 1973
9 61 °F 1998
9 61 °F 1969
What's the all-time low for Juneau on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Juneau history is 30 °F which happened in 2018.
Lowest Temperatures in Juneau on September 18
Rank Temperature Year
1 30 °F 2018
2 31 °F 1985
2 31 °F 1973
4 32 °F 2004
5 33 °F 1983
6 34 °F 1998
7 35 °F 1978
7 35 °F 1913
7 35 °F 1972
10 36 °F 1914
10 36 °F 1968
10 36 °F 2010
Lowest High Temperatures in Juneau on September 18
Rank Temperature Year
1 46 °F 2003
2 48 °F 1989
3 49 °F 2002
3 49 °F 1962
3 49 °F 1895
6 50 °F 1953
6 50 °F 1993
6 50 °F 1947
6 50 °F 1987
6 50 °F 1960
6 50 °F 1971
6 50 °F 1908
What's the most it has ever rained in Juneau on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Juneau history is 1.65 inches which happened in 1946.
All-Time Most Precipitation in Juneau on September 18
Rank Precipitation Year
1 1.65 inches 1946
2 1.57 inches 1999
3 1.54 inches 1961
4 1.43 inches 1901
5 1.34 inches 2015
6 1.26 inches 1997
7 1.21 inches 1967
8 1.10 inches 1948
9 1.05 inches 1992
9 1.05 inches 1909
Weather Station Details
Years Station Coordinates
1960–2024 Juneau International Airport location
1890–1959 Downtown Juneau location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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