Miami September 21 Weather Records

Daily averages and all-time records for weather in Miami, Florida for the date of September 21.
September 21 All-Time Records
1931–2024
Highest temperature 94 °F 2022
Lowest temperature 68 °F 1941
Lowest daily high 77 °F 1941
Highest daily low 82 °F 1969
Most precipitation 5.75 inches 1948
September 21 Average Weather
1991–2020 1
Average high 88.8 °F
Average low 76.7 °F
Chance precipitation 58.7%
Miami September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 93 75 0.34 0.0
2022 94 80 0.09 0.0
2021 88 78 0.00 n/a
2020 83 77 1.16 n/a
2019 87 75 0.62 n/a
2018 90 73 0.55 n/a
2017 92 74 2.29 n/a
2016 91 76 0.72 n/a
2015 89 75 0.84 n/a
2014 88 73 0.02 n/a
2013 87 75 0.01 0.0
2012 87 76 0.30 n/a
2011 90 78 0.21 n/a
2010 88 76 0.12 n/a
2009 91 80 0.00 n/a
2008 91 79 0.01 n/a
2007 92 74 0.60 n/a
2006 92 77 0.00 n/a
2005 89 78 0.00 n/a
2004 88 74 0.01 n/a
2003 89 80 0.06 n/a
2002 90 77 0.00 n/a
2001 90 77 0.00 n/a
2000 89 80 0.00 0.0
1999 82 75 1.14 0.0
1998 90 77 0.66 0.0
1997 85 75 0.01 0.0
1996 90 75 0.36 0.0
1995 90 79 0.00 0.0
1994 87 74 0.02 0.0
1993 91 78 0.00 0.0
1992 91 77 0.00 0.0
1991 90 77 0.50 0.0
1990 91 78 0.00 0.0
1989 93 76 0.00 0.0
1988 92 78 0.06 0.0
1987 93 77 0.51 0.0
1986 89 73 0.72 0.0
1985 90 72 0.00 0.0
1984 85 73 0.88 0.0
1983 89 75 0.00 0.0
1982 89 76 0.13 0.0
1981 88 76 0.01 0.0
1980 90 80 0.00 0.0
1979 85 79 0.02 0.0
1978 88 77 0.10 0.0
1977 87 80 0.01 0.0
1976 88 77 0.00 0.0
1975 90 79 0.02 0.0
1974 89 78 0.04 0.0
1973 88 76 0.00 0.0
1972 86 74 0.45 0.0
1971 87 75 0.00 0.0
1970 86 74 0.17 0.0
1969 88 82 0.00 0.0
1968 88 77 0.05 0.0
1967 91 75 0.00 0.0
1966 91 75 2.02 0.0
1965 84 75 0.03 0.0
1964 88 74 0.00 0.0
1963 83 74 0.16 0.0
1962 80 71 1.90 0.0
1961 90 75 0.00 0.0
1960 85 76 0.13 0.0
1959 84 73 1.32 0.0
1958 90 76 0.00 0.0
1957 89 75 0.00 0.0
1956 83 75 0.00 0.0
1955 91 73 0.00 0.0
1954 88 78 0.00 0.0
1953 87 77 0.05 0.0
1952 90 80 0.00 0.0
1951 91 80 0.00 0.0
1950 85 75 0.24 0.0
1949 88 73 0.27 0.0
1948 80 74 5.75 0.0
1947 88 75 0.11 n/a
1946 91 71 0.41 n/a
1945 89 73 0.00 n/a
1944 n/a n/a n/a n/a
1943 90 74 0.01 n/a
1942 n/a n/a n/a n/a
1941 77 68 1.80 n/a
1940 84 73 3.34 n/a
1939 88 70 0.00 n/a
1938 92 70 0.00 n/a
1937 89 79 0.00 n/a
1936 86 72 0.72 n/a
1935 87 73 0.03 n/a
1934 88 70 0.67 n/a
1933 91 75 0.00 n/a
1932 88 76 0.00 n/a
1931 88 80 0.00 n/a
What's the all-time high for Miami on 9/21?
For the date of Sep 21, the highest temperature ever reached in Miami history is 94 °F which happened in 2022.
Highest Temperatures in Miami on September 21
Rank Temperature Year
1 94 °F 2022
2 93 °F 1987
2 93 °F 1989
2 93 °F 2023
5 92 °F 2017
5 92 °F 2006
5 92 °F 1938
5 92 °F 1988
5 92 °F 2007
10 91 °F 2016
10 91 °F 1933
10 91 °F 1990
10 91 °F 2008
10 91 °F 1951
10 91 °F 2009
10 91 °F 1966
10 91 °F 1993
10 91 °F 1946
10 91 °F 1992
10 91 °F 1955
10 91 °F 1967
What's the all-time low for Miami on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Miami history is 68 °F which happened in 1941.
Lowest Temperatures in Miami on September 21
Rank Temperature Year
1 68 °F 1941
2 70 °F 1934
2 70 °F 1939
2 70 °F 1938
5 71 °F 1946
5 71 °F 1962
7 72 °F 1936
7 72 °F 1985
9 73 °F 1949
9 73 °F 2018
9 73 °F 1940
9 73 °F 1945
9 73 °F 1955
9 73 °F 2014
9 73 °F 1935
9 73 °F 1959
9 73 °F 1984
9 73 °F 1986
Lowest High Temperatures in Miami on September 21
Rank Temperature Year
1 77 °F 1941
2 80 °F 1962
2 80 °F 1948
4 82 °F 1999
5 83 °F 2020
5 83 °F 1956
5 83 °F 1963
8 84 °F 1959
8 84 °F 1965
8 84 °F 1940
What's the most it has ever rained in Miami on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Miami history is 5.75 inches which happened in 1948.
All-Time Most Precipitation in Miami on September 21
Rank Precipitation Year
1 5.75 inches 1948
2 3.34 inches 1940
3 2.29 inches 2017
4 2.02 inches 1966
5 1.90 inches 1962
6 1.80 inches 1941
7 1.32 inches 1959
8 1.16 inches 2020
9 1.14 inches 1999
10 0.88 inches 1984
Weather Station Details
Years Station Coordinates
1948–2024 Miami International Airport location
1931–1947 Miami SSW location