Palmdale September 21 Weather Records

Daily averages and all-time records for weather in Palmdale, California for the date of September 21.
September 21 All-Time Records
1903–2024
Highest temperature 101 °F 1958
Lowest temperature 40 °F 1978
Lowest daily high 72 °F 2023
Highest daily low 68 °F 1991
Most precipitation 0.23 inches 1939
September 21 Average Weather
1991–2020 1
Average high 90.2 °F
Average low 57.6 °F
Chance precipitation 2.5%
Palmdale September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 72 54 0.00 n/a
2022 80 52 0.00 n/a
2021 94 55 0.00 n/a
2020 95 60 0.00 0.0
2019 88 50 0.00 0.0
2018 95 59 0.00 0.0
2017 72 52 0.00 0.0
2016 88 65 0.00 0.0
2015 98 66 0.00 0.0
2014 89 61 0.00 0.0
2013 78 58 0.00 0.0
2012 97 65 0.00 0.0
2011 98 62 0.00 n/a
2010 86 51 0.00 n/a
2009 99 61 0.00 n/a
2008 84 53 0.00 n/a
2007 76 45 0.04 n/a
2006 88 47 0.00 n/a
2005 80 58 0.01 n/a
2004 78 44 0.00 n/a
2003 100 57 0.00 n/a
2002 98 61 0.00 n/a
2001 93 62 0.00 n/a
2000 74 58 0.00 n/a
1999 91 58 0.00 n/a
1998 75 47 0.00 0.0
1997 91 54 0.00 0.0
1996 94 60 0.00 0.0
1995 99 65 0.00 0.0
1994 94 58 0.00 0.0
1993 89 51 0.00 0.0
1992 97 61 0.00 0.0
1991 93 68 0.00 0.0
1990 86 59 0.00 0.0
1989 89 53 0.00 0.0
1988 72 50 0.00 0.0
1987 97 58 0.00 0.0
1986 76 42 0.00 0.0
1985 85 49 0.00 0.0
1984 90 58 0.00 0.0
1983 92 55 0.00 0.0
1982 n/a 50 0.00 0.0
1981 93 57 0.00 0.0
1980 86 52 0.00 0.0
1979 94 53 0.00 0.0
1978 82 40 0.00 0.0
1977 85 47 0.00 0.0
1976 86 55 0.00 0.0
1975 94 57 0.00 0.0
1974 97 59 0.00 0.0
1973 88 51 0.00 0.0
1972 91 48 0.00 0.0
1971 85 55 0.00 0.0
1970 82 49 0.00 0.0
1969 82 52 0.00 0.0
1968 74 42 0.00 0.0
1967 90 56 0.00 0.0
1966 96 54 0.00 0.0
1965 84 46 0.00 0.0
1964 n/a n/a 0.00 0.0
1963 83 53 0.00 0.0
1962 89 58 0.00 0.0
1961 74 53 0.00 0.0
1960 91 63 0.00 0.0
1959 86 55 0.00 0.0
1958 101 59 0.00 0.0
1957 92 50 0.00 0.0
1956 90 49 0.00 0.0
1955 88 53 0.00 0.0
1954 97 43 0.00 0.0
1953 80 52 0.00 0.0
1952 85 57 0.00 0.0
1951 98 63 0.00 0.0
1950 84 47 0.00 0.0
1949 97 67 0.00 0.0
1948 92 50 0.00 0.0
1947 88 59 0.00 0.0
1946 92 56 0.00 0.0
1945 76 54 0.00 0.0
1944 89 42 0.00 0.0
1943 100 58 0.00 0.0
1942 89 49 0.00 0.0
1941 72 43 0.00 0.0
1940 88 51 0.00 0.0
1939 85 59 0.23 0.0
1938 95 65 0.00 0.0
1937 91 56 0.00 0.0
1936 95 65 0.00 0.0
1935 93 62 0.00 0.0
1934 80 65 0.00 0.0
1933 89 47 0.00 0.0
1932 89 47 0.00 0.0
1931 83 48 0.00 0.0
1930 n/a n/a 0.00 n/a
1929 n/a n/a n/a n/a
1928 n/a n/a 0.00 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 0.00 n/a
1924 n/a n/a 0.00 n/a
1923 n/a n/a 0.00 n/a
1922 n/a n/a 0.00 n/a
1921 n/a n/a 0.00 n/a
1920 n/a n/a 0.00 n/a
1919 n/a n/a 0.00 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 0.00 n/a
What's the all-time high for Palmdale on 9/21?
For the date of Sep 21, the highest temperature ever reached in Palmdale history is 101 °F which happened in 1958.
Highest Temperatures in Palmdale on September 21
Rank Temperature Year
1 101 °F 1958
2 100 °F 2003
2 100 °F 1943
4 99 °F 1995
4 99 °F 2009
6 98 °F 2011
6 98 °F 2015
6 98 °F 1951
6 98 °F 2002
10 97 °F 2012
10 97 °F 1987
10 97 °F 1974
10 97 °F 1954
10 97 °F 1949
10 97 °F 1992
What's the all-time low for Palmdale on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Palmdale history is 40 °F which happened in 1978.
Lowest Temperatures in Palmdale on September 21
Rank Temperature Year
1 40 °F 1978
2 42 °F 1986
2 42 °F 1968
2 42 °F 1944
5 43 °F 1941
5 43 °F 1954
7 44 °F 2004
8 45 °F 2007
9 46 °F 1965
10 47 °F 1998
10 47 °F 1950
10 47 °F 1977
10 47 °F 1933
10 47 °F 1932
10 47 °F 2006
Lowest High Temperatures in Palmdale on September 21
Rank Temperature Year
1 72 °F 1988
1 72 °F 2023
1 72 °F 2017
1 72 °F 1941
5 74 °F 1961
5 74 °F 2000
5 74 °F 1968
8 75 °F 1998
9 76 °F 2007
9 76 °F 1986
9 76 °F 1945
What's the most it has ever rained in Palmdale on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Palmdale history is 0.23 inches which happened in 1939.
All-Time Most Precipitation in Palmdale on September 21
Rank Precipitation Year
1 0.23 inches 1939
2 0.04 inches 2007
3 0.01 inches 2005
Weather Station Details
Years Station Coordinates
1999–2024 Palmdale Airport location
1903–1998 Palmdale location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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