Onset of Wet and Dry Seasons at Orlando, FL
(Updated through 2013)

 
 Wet Season Onset

Dry Season Onset

Wet Season Length

Median Date 
5/27

10/15

142 days

Earliest 
 5/5 (1966)

9/27 (2006)

Shortest --108 (2006)

Latest 
  7/6 (1998)

11/7 (1971)

Longest--173 (1969)

1949
5/30

10/15

138 days

1950
5/27

10/4

130

1951
6/6

10/24

140

1952
5/17

10/21

157

1953
6/2

10/10

130

1954
5/27

10/15

141

1955
6/11 *

10/14

125

1956
5/25

10/18

146

1957
5/11

10/6

148

1958
5/22

10/20

151

1959
5/12 *

10/25

166

1960
5/26

10/22

149

1961
6/7

10/15

130

1962
5/21

10/19

151

1963
5/21

10/19

151

1964
5/30

10/16

139

1965
5/29

10/18

142

1966
5/5

10/12

160

1967
6/3

9/29

118

1968
5/24

10/20

149

1969
5/14

11/3

173

1970
5/24

10/31

160

1971
6/3

11/7

157

1972
5/7

10/6

152

1973
5/24

10/24

153

1974
5/12

10/1

142

1975
5/9

10/19

163

1976
5/7 * 

10/1

147

1977
5/24

10/4

133

1978
6/1

10/7

128

1979
5/30

10/5

128

1980
5/15

10/4

142

1981
5/26

10/15

142

1982
5/21

10/15

147

1983
5/30

10/25

148

1984
5/22 & 6/11

10/1

112

1985
5/20

11/4

168

1986
6/2

10/16

136

1987
5/9

10/2

146

1988
6/5

10/7

124

1989
5/28

10/18

143

1990
5/27

10/25

151

1991
5/13

10/7

147

1992
5/27

10/12

138

1993
5/28 *

10/11

136

1994
5/28

10/17

142

1995
5/20

10/19

152

1996
5/21

10/9

141

1997
5/19

10/19

153

1998
7/6 *

10/22

108

1999
5/27

10/22

148

2000
6/11

10/9

120

2001
5/22

9/30

131

2002
6/6

10/16

132

2003
6/2

10/15

135

2004
6/3

10/14

133

2005
5/30

10/15

138

2006
6/11

9/27

108

2007
6/6

11/3

155

2008
6/9

10/14

127

2009
5/17

9/30

136

2010

5/30

9/30

123

2011

6/14 
(second latest)

10/20 

128 

2012

5/27

10/28

154

2013 5/19 10/9  143
 * Indicates dates from original study that were re-evaluated.
 
Data Sources:
Orlando Herndon Airport 1949-1974 International Airport 1975-present

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