September
100
1011.4
Calm
1033.1
80
1012.1
1007.9
N
1005.1
1009.3
NE
972.6
17,586
60
1008.4
E
1008.8
SE
40
1008.5
S
1009.0
SW
1008.2
20
W
1007.7
NW
0
100
1011.2
Calm
1058.5
80
1012.0
1006.5
N
1004.7
1006.0
NE
970.7
17,122
60
1006.3
E
1008.9
SE
40
1009.2
S
1010.9
SW
1010.8
20
W
1009.4
NW
0
100
1008.7
Calm
1032.3
80
1011.6
1007.7
N
1004.8
1008.2
NE
971.6
15,516
60
1006.8
E
1008.0
SE
40
1008.5
S
1009.4
SW
1010.3
20
W
1007.9
NW
0
100
1008.7
Calm
1033.6
80
1011.4
1005.0
N
1003.9
1005.0
NE
958.2
17,083
60
1006.8
E
1006.2
SE
40
1006.6
S
1007.7
SW
1011.0
20
W
1008.6
NW
0
960
980
1000
1020
1040
1060
60
50
40
30
20
10
0
Frequency (%)
Sea Level Pressure (mb)
134
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