YAP ISLAND, PACIFIC
NORMALS, MEANS, AND EXTREMES

LATITUDE: 9 Deg. 29 Min. N LONGITUDE: 138 Deg. 05 Min. E ELEVATION: FT. GRND 44 BARO 47 TIME ZONE: 135E MER WBAN: 40308

(a)
JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC
YEAR
TEMPERATURE (Deg. F)
Normals
-Daily Maximum
-Daily Minimum
-Monthly
Extremes
-Record Highest
-Year
-Record Lowest
-Year






47

47



85.9
74.6
80.3

90
1963
67
1993


86.2
74.8
80.5

92
1950
67
1992


86.9
74.9
80.9

90
1994
64
1993


87.7
75.3
81.5

97
1951
69
1993


87.8
75.5
81.6

93
1984
69
1992


87.3
75.0
81.2

94
1958
65
1975


86.8
71.6
80.7

96
1950
70
1995


86.8
74.5
80.7

93
1957
67
1975


87.1
74.6
80.9

93
1956
68
1993


87.2
74.7
81.0

93
1957
67
1995


87.2
74.9
81.1

93
1956
69
1991


86.5
75.0
80.8

94
1955
65
1973


87.0
74.9
80.9

97
APR 1951
64
MAR 1993
NORMAL DEGREE DAYS
Heating (base 65 Deg. F)
Cooling (base 65 Deg. F)




0
474

0
434

0
493

0
495

0
515

0
486

0
487

0
487

0
477

0
496

0
483

0
490

0
5817
% OF POSSIBLE SUNSHINE
36
59
63
69
69
64
51
46
44
47
45
51
51
55
MEAN SKY COVER(tenths)
Sunrise - Sunset
MEAN NUMBER OF DAYS:
Sunrise to Sunset
-Clear
-Partly Cloudy
-Cloudy
Precipitation
.01 inches or more
Snow, Ice Pellets, Hail
1.0 inches or more
Thunderstorms
Heavy Fog Visibility
1/4 mile or less
Temperature Deg. F
-Maximum
90 Deg. F and above
32 Deg. F and below
-Minimum
32 Deg. F and below
0 Deg. F and below

47


46
46
46

47

47
47

47


47
47

47
47

8.5


0.8
7.6
22.6

20.8

0.0
0.5

0.0


0.2
0.0

0.0
0.0

8.5


0.5
7.4
20.3

17.7

0.0
0.3

0.0


0.1
0.0

0.0
0.0

8.4


0.7
8.2
22.2

17.8

0.0
0.3

0.0


0.4
0.0

0.0
0.0

8.2


0.9
9.5
19.6

17.6

0.0
0.8

0.0


3.2
0.0

0.0
0.0

8.2


0.8
10.0
20.1

21.0

0.0
1.1

0.0


5.4
0.0

0.0
0.0

8.9


0.3
5.5
24.2

23.7

0.0
1.7

0.0


4.1
0.0

0.0
0.0

9.1


0.5
4.0
26.5

24.4

0.0
2.1

0.0


2.8
0.0

0.0
0.0

9.3


0.2
3.0
27.8

23.8

0.0
2.0

0.0


3.1
0.0

0.0
0.0

9.1


0.3
5.0
24.7

22.7

0.0
2.8

0.0


3.4
0.0

0.0
0.0

8.8


0.5
6.4
24.2

23.6

0.0
2.5

0.0


3.7
0.0

0.0
0.0

8.6


0.5
7.7
21.9

22.6

0.0
2.0

0.0


2.6
0.0

0.0
0.0

8.6


0.6
8.2
22.2

21.9

0.0
1.6

0.0


0.6
0.0

0.0
0.0

8.7


6.5
82.5
276.3

257.7

0.0
17.7

0.0


29.3
0.0

0.0
0.0
AV. STATION PRES. (mb)
16
1008.1
1008.8
1008.7
1008.1
1007.6
1007.5
1007.1
1007.1
1007.2
1006.8
1006.5
1007.5
1007.6
RELATIVE HUMIDITY (%)
Hour 04
Hour 10 (Local Time)
Hour 16
Hour 22

26
47
47
47

87
78
76
85

86
77
74
84

86
75
73
84

88
75
73
85

90
77
75
87

91
79
77
89

92
80
77
90

91
81
78
89

91
80
78
89

92
80
78
90

90
79
78
89

88
79
77
87

89
78
76
87
PRECIPITATION (in.)
Water Equivalent
-Normal
-Maximum Monthly
-Year
-Minimum Monthly
-Year
-Maximum in 24 hrs
-Year
Snow, Ice Pellets, Hail
-Maximum Monthly
-Year
-Maximum in 24 hrs
-Year



47

47

47




47



7.33
23.08
1955
1.25
1983
10.45
1958

0.0

0.0



5.98
13.36
1962
0.27
1983
5.94
1962

0.0

0.0



5.96
16.46
1950
1.38
1958
5.09
1963

0.0

0.0



5.76
18.15
1956
0.91
1977
6.57
1962

0.0

0.0



9.06
18.23
1964
1.47
1993
10.06
1967

0.0

0.0



12.69
32.01
1982
3.40
1951
18.75
1982

0.0

0.0



14.54
34.71
1969
4.99
1949
7.44
1969

0.0

0.0



15.20
29.44
1953
5.13
1973
7.81
1987

0.0

0.0



13.51
19.57
1949
5.32
1987
8.35
1978

0.0

0.0



11.97
22.43
1992
2.59
1976
6.72
1988

0.0

0.0



9.07
20.66
1960
1.96
1957
8.91
1960

0.0

0.0



8.99
17.05
1954
2.22
1990
6.66
1985

0.0

0.0



120.06
34.71
JUL 1969
0.27
FEB 1983
18.75
JUN 1982





WIND
Mean Speed (mph)
Prevailing Direction
through 1964
Fastest Mile
-Direction(!!)
-Speed(mph)
-Year
Peak Gust
-Direction(!!)
-Speed(mph)
-Date

26



6



12
12


9.8

NE

0
23
1994

NE
39
1989

10.3

NE

03
21
1995

E
38
1986

9.9

NE

07
21
1995

NE
45
1991

8.9

NE

13
23
1994

NE
44
1989

7.8

NE

08
20
1993

W
33
1994

6.8

NE

23
23
1993

E
63
1990

6.4

SW

06
18
1995

SW
40
1986

6.7

SW

22
25
1993

W
45
1993

6.9

SW

09
23
1995

W
46
1994

6.5

W

25
23
1991

SW
43
1985

7.4

NE

09
36
1990

E
60
1990

8.9

NE

28
35
1993

W
54
1993

8.0

NE

09
36
NOV 1990

E
63
JUN 1990
(a) - Length of Record in Years, although individual months may be missing.
0.* or * - The value is between 0.0 and 0.05.
Normals - Based on the 1961 - 1990 record period.
Extremes - Dates are the most recent occurrence.
Wind Dir.- Numerals show tens of degrees clockwise from true north. "00" indicates calm.
Resultant Directions are given to whole degrees.