Juneau May 21 Weather Records

Daily averages and all-time records for weather in Juneau, Alaska for the date of May 21.
May 21 All-Time Records
1890–2023
Highest temperature 77 °F 1963
Lowest temperature 30 °F 1974
Lowest daily high 44 °F 1950
Highest daily low 59 °F 1906
Most precipitation 1.5 inches 2017
Most snow none -
May 21 Average Weather
1991–2020 1
Average high 58.9 °F
Average low 41.8 °F
Chance precipitation 51.1%
Chance snow 0%
Juneau May 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 55 46 0.00 0.0
2022 71 36 0.00 0.0
2021 52 48 0.40 0.0
2020 62 37 0.00 0.0
2019 72 47 0.00 0.0
2018 55 48 0.70 0.0
2017 55 51 1.53 0.0
2016 69 43 0.00 0.0
2015 73 50 0.00 0.0
2014 58 43 0.00 0.0
2013 64 32 0.00 0.0
2012 56 42 0.09 0.0
2011 58 43 0.03 0.0
2010 55 46 0.02 0.0
2009 62 40 0.00 0.0
2008 53 45 0.14 0.0
2007 60 35 0.00 0.0
2006 59 45 0.00 0.0
2005 63 41 0.00 0.0
2004 71 40 0.00 0.0
2003 67 34 0.04 0.0
2002 68 50 0.01 0.0
2001 52 43 0.18 0.0
2000 49 40 0.14 0.0
1999 52 43 0.03 0.0
1998 58 45 0.17 0.0
1997 75 43 0.00 0.0
1996 57 39 0.00 0.0
1995 64 38 0.00 0.0
1994 51 46 0.14 0.0
1993 56 48 0.26 0.0
1992 60 34 0.00 0.0
1991 53 39 0.00 0.0
1990 60 46 0.00 0.0
1989 73 39 0.00 0.0
1988 55 39 0.14 0.0
1987 60 39 0.00 0.0
1986 50 42 0.10 0.0
1985 55 37 0.00 0.0
1984 56 43 0.00 0.0
1983 50 46 0.23 0.0
1982 48 41 0.05 0.0
1981 55 44 0.04 0.0
1980 55 37 0.19 0.0
1979 55 42 0.05 0.0
1978 67 34 0.00 0.0
1977 53 41 0.03 0.0
1976 56 41 0.00 0.0
1975 46 42 0.15 0.0
1974 63 30 0.00 0.0
1973 50 38 0.33 0.0
1972 53 41 0.00 0.0
1971 48 36 0.26 0.0
1970 53 43 0.05 0.0
1969 63 47 0.00 0.0
1968 52 47 0.39 0.0
1967 45 37 0.04 0.0
1966 53 36 0.02 0.0
1965 57 31 0.00 0.0
1964 53 32 0.00 0.0
1963 77 41 0.00 0.0
1962 59 42 0.00 0.0
1961 55 41 0.01 0.0
1960 72 39 0.00 0.0
1959 54 44 0.23 0.0
1958 58 49 0.28 0.0
1957 55 46 0.03 0.0
1956 50 42 0.28 0.0
1955 52 38 0.00 0.0
1954 52 43 0.15 0.0
1953 65 45 0.00 0.0
1952 48 45 0.54 0.0
1951 54 46 0.41 0.0
1950 44 38 0.17 0.0
1949 76 43 0.00 0.0
1948 55 42 1.49 0.0
1947 47 42 0.31 0.0
1946 52 39 0.02 0.0
1945 72 44 0.00 0.0
1944 56 37 0.00 0.0
1916 52 41 0.06 n/a
1915 68 42 n/a n/a
1914 68 39 n/a n/a
1913 53 43 0.11 n/a
1912 70 45 0.00 0.0
1911 48 44 0.00 0.0
1910 59 48 0.48 0.0
1909 58 38 0.05 0.0
1908 65 45 0.00 0.0
1907 69 50 0.00 0.0
1906 70 59 0.00 n/a
1905 69 45 0.00 n/a
1904 53 41 0.73 0.0
1903 57 41 0.00 0.0
1902 56 39 0.00 0.0
1901 67 44 n/a n/a
1900 51 42 0.00 n/a
1899 64 46 0.00 n/a
1891 50 41 0.45 n/a
1890 46 42 0.21 0.0
What's the all-time high for Juneau on 5/21?
For the date of May 21, the highest temperature ever reached in Juneau history is 77 °F which happened in 1963.
Highest Temperatures in Juneau on May 21
Rank Temperature Year
1 77 °F 1963
2 76 °F 1949
3 75 °F 1997
4 73 °F 2015
4 73 °F 1989
6 72 °F 2019
6 72 °F 1945
6 72 °F 1960
9 71 °F 2004
9 71 °F 2022
What's the all-time low for Juneau on 5/21?
For the date of May 21, the lowest temperature ever reached in Juneau history is 30 °F which happened in 1974.
Lowest Temperatures in Juneau on May 21
Rank Temperature Year
1 30 °F 1974
2 31 °F 1965
3 32 °F 2013
3 32 °F 1964
5 34 °F 2003
5 34 °F 1992
5 34 °F 1978
8 35 °F 2007
9 36 °F 2022
9 36 °F 1966
9 36 °F 1971
Lowest High Temperatures in Juneau on May 21
Rank Temperature Year
1 44 °F 1950
2 45 °F 1967
3 46 °F 1890
3 46 °F 1975
5 47 °F 1947
6 48 °F 1982
6 48 °F 1911
6 48 °F 1952
6 48 °F 1971
10 49 °F 2000
What's the most it has ever rained in Juneau on 5/21?
For the date of May 21, the most precipitation ever recorded in Juneau history is 1.53 inches which happened in 2017.
All-Time Most Precipitation in Juneau on May 21
Rank Precipitation Year
1 1.53 inches 2017
2 1.49 inches 1948
3 0.73 inches 1904
4 0.70 inches 2018
5 0.54 inches 1952
6 0.48 inches 1910
7 0.45 inches 1891
8 0.41 inches 1951
9 0.40 inches 2021
10 0.39 inches 1968
Weather Station Details
Years Station Coordinates
1960–2023 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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