Juneau August 21 Weather Records

Daily averages and all-time records for weather in Juneau, Alaska for the date of August 21.
August 21 All-Time Records
1890–2024
Highest temperature 78 °F 1977
Lowest temperature 38 °F 1960
Lowest daily high 50 °F 1969
Highest daily low 60 °F 1911
Most precipitation 1.62 inches 1907
Most snow none -
August 21 Average Weather
1991–2020 1
Average high 61.7 °F
Average low 48.8 °F
Chance precipitation 66.8%
Chance snow 0%
Juneau August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 71 44 0.00 0.0
2022 74 48 0.00 0.0
2021 64 46 0.00 0.0
2020 59 50 0.35 0.0
2019 63 49 0.00 0.0
2018 71 46 0.30 0.0
2017 60 53 0.30 0.0
2016 69 46 0.00 0.0
2015 67 43 0.06 0.0
2014 71 44 0.00 0.0
2013 59 51 0.07 0.0
2012 58 52 0.00 0.0
2011 56 52 0.41 0.0
2010 64 49 0.12 0.0
2009 57 49 0.54 0.0
2008 57 52 0.44 0.0
2007 60 49 0.03 0.0
2006 57 47 0.36 0.0
2005 59 52 0.41 0.0
2004 73 49 0.00 0.0
2003 59 43 0.01 0.0
2002 55 51 0.84 0.0
2001 69 50 0.02 0.0
2000 54 50 1.37 0.0
1999 61 51 0.48 0.0
1998 53 46 0.12 0.0
1997 68 47 0.04 0.0
1996 55 51 0.23 0.0
1995 74 48 0.00 0.0
1994 56 53 0.58 0.0
1993 60 52 0.60 0.0
1992 70 43 0.00 0.0
1991 55 50 0.79 0.0
1990 65 49 0.00 0.0
1989 66 49 0.00 0.0
1988 57 51 0.06 0.0
1987 60 47 0.24 0.0
1986 66 41 0.00 0.0
1985 54 49 0.72 0.0
1984 63 49 0.02 0.0
1983 55 53 0.41 0.0
1982 68 42 0.02 0.0
1981 60 51 0.63 0.0
1980 60 47 0.01 0.0
1979 68 54 0.00 0.0
1978 63 48 0.28 0.0
1977 78 51 0.00 0.0
1976 63 48 0.00 0.0
1975 62 41 0.06 0.0
1974 54 40 0.74 0.0
1973 67 42 0.00 0.0
1972 73 49 0.00 0.0
1971 59 48 0.13 0.0
1970 59 47 0.23 0.0
1969 50 42 0.55 0.0
1968 58 53 0.22 0.0
1967 56 51 0.56 0.0
1966 62 43 0.00 0.0
1965 64 46 0.00 0.0
1964 58 45 0.01 0.0
1963 67 47 0.00 0.0
1962 60 52 0.01 0.0
1961 60 47 0.10 0.0
1960 69 38 0.00 0.0
1959 55 50 0.31 0.0
1958 61 51 0.25 0.0
1957 66 51 0.13 0.0
1956 65 50 0.20 0.0
1955 61 47 0.00 0.0
1954 67 51 0.00 0.0
1953 69 49 0.12 0.0
1952 58 48 0.10 0.0
1951 56 50 0.21 0.0
1950 76 51 0.00 0.0
1949 69 46 0.00 0.0
1948 67 50 0.00 0.0
1947 65 45 0.00 0.0
1946 60 53 0.78 0.0
1945 63 45 0.00 0.0
1944 61 51 0.00 0.0
1943 65 n/a 0.04 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 55 49 0.30 0.0
1915 71 n/a n/a n/a
1914 55 47 0.10 n/a
1913 72 55 n/a n/a
1912 58 53 0.90 n/a
1911 69 60 0.00 0.0
1910 n/a n/a 0.00 0.0
1909 58 45 0.55 0.0
1908 60 44 0.00 0.0
1907 58 52 1.62 0.0
1906 68 40 0.00 0.0
1905 56 46 0.00 0.0
1904 60 45 0.34 0.0
1903 60 47 0.00 0.0
1902 54 50 0.62 0.0
1901 55 47 0.62 n/a
1900 63 52 0.41 n/a
1899 64 52 0.00 n/a
1898 n/a n/a n/a n/a
1897 n/a n/a n/a n/a
1896 n/a n/a n/a n/a
1895 56 47 0.00 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 8/21?
For the date of Aug 21, the highest temperature ever reached in Juneau history is 78 °F which happened in 1977.
Highest Temperatures in Juneau on August 21
Rank Temperature Year
1 78 °F 1977
2 76 °F 1950
3 74 °F 1995
3 74 °F 2022
5 73 °F 1972
5 73 °F 2004
7 72 °F 1913
8 71 °F 2014
8 71 °F 1915
8 71 °F 2018
8 71 °F 2023
What's the all-time low for Juneau on 8/21?
For the date of Aug 21, the lowest temperature ever reached in Juneau history is 38 °F which happened in 1960.
Lowest Temperatures in Juneau on August 21
Rank Temperature Year
1 38 °F 1960
2 40 °F 1974
2 40 °F 1906
4 41 °F 1986
4 41 °F 1975
6 42 °F 1973
6 42 °F 1982
6 42 °F 1969
9 43 °F 1992
9 43 °F 1966
9 43 °F 2015
9 43 °F 2003
Lowest High Temperatures in Juneau on August 21
Rank Temperature Year
1 50 °F 1969
2 53 °F 1998
3 54 °F 1902
3 54 °F 1985
3 54 °F 1974
3 54 °F 2000
7 55 °F 1901
7 55 °F 1914
7 55 °F 1916
7 55 °F 1959
7 55 °F 1983
7 55 °F 1996
7 55 °F 1991
7 55 °F 2002
What's the most it has ever rained in Juneau on 8/21?
For the date of Aug 21, the most precipitation ever recorded in Juneau history is 1.62 inches which happened in 1907.
All-Time Most Precipitation in Juneau on August 21
Rank Precipitation Year
1 1.62 inches 1907
2 1.37 inches 2000
3 0.90 inches 1912
4 0.84 inches 2002
5 0.79 inches 1991
6 0.78 inches 1946
7 0.74 inches 1974
8 0.72 inches 1985
9 0.63 inches 1981
10 0.62 inches 1901
10 0.62 inches 1902
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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