YAP ISLAND WSO AIRPORT, PACIFIC OCEAN

Monthly Total Precipitation (inches)

(914951)

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201208
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
MAXIMUM ALLOWABLE NUMBER OF MISSING DAYS : 5
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S) JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1953 4.03 9.37 7.87 8.22 6.61 19.91 a 6.51 29.44 6.88 14.20 14.65 12.27 139.96
1954 2.96 a 1.93 2.37 2.01 12.93 9.91 7.33 8.81 9.74 14.06 13.09 17.05 102.19
1955 23.08 4.86 2.22 7.98 12.29 11.18 12.99 20.01 14.72 14.07 a 9.54 a 12.32 145.26
1956 7.78 3.63 8.74 18.15 12.17 11.45 19.56 11.41 12.13 14.26 11.97 14.27 145.52
1957 15.10 4.70 8.53 5.27 6.16 11.48 13.82 11.80 17.60 9.33 1.96 3.65 109.40
1958 13.70 1.46 1.38 2.92 4.68 10.21 15.84 6.07 12.80 9.74 18.53 5.20 102.53
1959 7.75 7.99 9.07 4.38 11.54 4.69 18.95 11.61 11.18 11.61 10.34 11.16 120.27
1960 7.78 6.23 4.22 6.30 12.70 9.46 11.45 11.96 10.63 18.07 20.66 8.13 127.59
1961 11.65 5.66 11.15 4.75 18.08 12.33 12.70 17.25 15.10 21.16 4.42 11.27 145.52
1962 8.53 13.36 7.82 15.95 14.43 7.96 19.44 17.32 12.23 9.65 7.41 15.01 149.11
1963 11.26 12.20 11.13 4.20 7.14 8.77 13.49 28.20 10.25 16.67 7.47 10.17 140.95
1964 2.37 6.47 4.01 7.61 18.23 6.74 9.44 16.72 12.55 11.69 6.19 10.98 113.00
1965 3.32 6.00 7.63 4.25 8.12 10.88 26.47 12.39 17.73 8.42 12.02 3.69 120.92
1966 4.98 1.29 2.31 1.86 6.71 12.52 17.98 9.02 9.59 7.11 8.84 9.97 92.18
1967 12.02 6.25 5.37 11.76 16.00 16.71 14.14 16.45 11.72 12.80 10.44 7.48 141.14
1968 10.77 8.04 3.72 1.82 3.94 5.76 14.24 10.90 10.66 11.21 3.59 8.34 92.99
1969 4.10 1.24 2.08 3.03 7.69 8.78 34.71 11.58 17.03 11.48 9.76 8.32 119.80
1970 4.64 6.17 4.67 3.04 9.76 8.76 8.80 25.45 11.04 12.31 9.56 8.15 112.35
1971 10.42 10.11 13.48 12.25 12.84 13.94 14.12 12.15 13.87 15.15 10.26 9.71 148.30
1972 6.03 10.42 14.21 8.97 5.33 10.18 9.20 9.45 17.60 5.64 9.35 5.14 111.52
1973 2.14 1.00 1.54 5.62 5.98 12.35 10.11 5.13 17.64 14.92 10.57 7.03 94.03
1974 11.84 4.27 9.99 10.07 9.77 14.30 14.40 12.33 9.48 19.11 18.85 13.30 147.71
1975 19.48 1.20 3.12 10.73 9.09 10.67 8.38 11.90 11.25 12.67 6.79 10.93 116.21
1976 7.36 3.19 8.76 6.77 12.52 13.30 11.43 16.29 13.44 2.59 8.88 9.97 114.50
1977 3.94 2.18 2.42 0.91 10.36 7.49 17.21 13.99 18.73 5.76 9.47 11.64 104.10
1978 4.22 5.25 2.04 5.38 4.87 12.89 8.67 18.52 19.17 18.10 11.09 8.98 119.18
1979 3.88 3.16 7.06 3.98 8.82 21.07 14.44 19.57 9.59 12.18 7.34 13.40 124.49
1980 2.32 4.60 6.42 7.72 10.57 13.52 17.84 9.52 12.71 13.41 7.20 14.52 120.35
1981 12.90 8.00 2.89 1.10 5.05 10.77 18.54 13.61 19.03 14.22 10.12 11.01 127.24
1982 7.30 12.58 7.50 2.62 10.49 32.01 13.04 14.26 13.93 9.34 0.00 z 0.00 z 123.07
1983 1.25 0.27 2.76 1.36 3.59 6.98 16.14 16.59 12.59 8.37 13.56 5.38 88.84
1984 5.33 9.59 3.90 2.21 1.77 12.38 9.59 15.33 6.41 17.29 12.03 5.44 101.27
1985 14.46 3.27 6.70 8.83 6.81 18.65 11.52 15.49 17.34 10.31 5.79 14.32 133.49
1986 7.53 10.61 10.90 6.94 9.59 13.08 15.36 11.25 12.31 7.62 14.07 5.88 125.14
1987 5.96 4.91 1.96 4.80 3.96 11.04 15.10 27.87 2.81 o 6.70 6.47 2.74 91.51
1988 3.68 3.63 2.80 3.93 7.25 10.49 13.79 5.35 14.60 22.12 9.02 8.94 105.60
1989 10.09 12.25 7.16 4.66 10.66 13.56 13.55 17.75 11.72 13.45 7.14 8.70 130.69
1990 6.21 2.33 3.18 5.83 12.52 22.96 12.29 22.76 14.56 7.56 9.44 2.22 121.86
1991 8.46 2.09 2.46 3.65 4.92 13.42 17.21 13.49 15.45 17.33 6.78 3.73 108.99
1992 4.20 1.50 2.97 1.31 1.48 7.59 12.98 16.21 10.32 22.43 2.77 6.22 89.98
1993 6.34 6.68 11.53 5.83 1.47 11.53 15.69 14.30 12.08 10.27 9.43 13.64 118.79
1994 8.11 3.80 3.10 11.19 10.25 14.59 14.89 11.49 15.46 3.36 2.80 9.71 108.75
1995 7.88 9.79 3.23 1.78 10.08 6.19 6.55 12.53 13.06 17.23 9.09 16.00 113.41
1996 19.65 12.86 5.57 6.79 14.78 7.43 19.65 7.74 21.16 13.29 8.43 26.89 164.24
1997 13.44 9.83 4.58 2.69 2.42 15.89 15.13 13.25 10.85 10.46 6.24 5.93 110.71
1998 4.44 1.34 0.54 0.21 2.41 17.97 12.00 12.03 18.13 16.11 7.95 7.65 100.78
1999 5.99 5.47 9.13 14.96 15.32 15.99 12.96 19.74 8.78 4.95 12.95 12.47 138.71
2000 4.49 4.64 9.77 7.39 22.01 10.10 20.43 15.40 9.14 18.01 9.98 12.29 143.65
2001 5.02 6.84 5.98 2.30 11.01 15.13 18.83 21.06 7.45 7.33 7.56 11.99 120.50
2002 4.77 6.73 5.92 5.42 4.30 24.10 19.58 25.92 17.58 13.81 6.51 5.42 140.06
2003 5.98 1.69 7.63 6.54 22.14 11.70 24.42 13.51 18.40 16.91 15.41 13.60 157.93
2004 6.44 5.47 11.01 10.33 11.29 15.04 12.93 22.44 12.01 8.27 17.77 3.98 136.98
2005 6.94 2.04 5.97 12.84 5.37 13.75 16.97 16.70 11.20 3.33 a 11.64 9.87 116.62
2006 4.49 3.33 4.54 3.40 8.45 9.14 13.91 18.15 18.53 7.37 4.90 19.92 116.13
2007 7.13 4.62 6.28 6.96 16.32 10.90 15.05 13.36 17.96 17.43 12.76 8.73 137.50
2008 6.63 6.45 2.68 6.74 9.69 5.24 7.70 10.62 20.68 14.14 7.82 8.32 106.71
2009 8.60 14.60 3.16 11.78 6.43 8.48 17.58 7.76 16.61 11.06 10.46 3.76 120.28
2010 5.29 2.12 4.32 7.11 2.96 9.89 17.73 17.96 10.07 17.33 8.64 6.48 109.90
2011 11.80 6.71 10.28 7.22 15.10 13.56 20.84 19.16 21.03 12.32 9.92 9.76 157.70
2012 2.11 6.09 8.43 5.00 11.14 11.70 12.74 19.89 0.00 z 0.00 z 0.00 z 0.00 z 77.10
Period of Record Statistics
MEAN 7.67 5.74 5.87 6.16 9.34 12.31 14.81 15.14 13.72 12.32 9.62 9.71 122.34
S.D. 4.54 3.63 3.37 3.93 4.88 4.84 4.93 5.51 3.77 4.71 3.88 4.49 18.60
SKEW 1.28 0.61 0.52 0.91 0.51 1.50 1.16 0.64 0.20 0.01 0.65 0.99 0.24
MAX 23.08 14.60 14.21 18.15 22.14 32.01 34.71 29.44 21.16 22.43 20.66 26.89 164.24
MIN 1.25 0.27 0.54 0.21 1.47 4.69 6.51 5.13 6.41 2.59 1.96 2.22 88.84
NO YRS 60 60 60 60 60 60 60 60 58 59 58 58 57