POHNPEI WSO, PACIFIC OCEAN

Monthly Total Precipitation (inches)

(914751)

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 10.07 10.44 10.95 15.75 11.72 20.68 15.12 26.41 13.88 12.40 20.73 20.78 188.93
1954 11.95 8.44 13.38 a 18.20 21.38 a 18.43 11.37 17.89 17.73 14.65 22.52 20.21 196.15
1955 13.03 7.40 16.72 33.04 26.15 15.60 12.44 20.73 19.35 16.21 20.48 24.79 225.94
1956 17.61 6.51 18.33 28.08 23.40 13.41 16.90 17.43 13.29 15.40 15.68 19.98 206.02
1957 11.23 14.58 9.93 6.53 15.23 20.58 15.72 17.57 16.79 8.62 31.79 2.40 170.97
1958 9.72 15.71 17.00 23.59 20.40 16.62 21.28 11.23 14.89 20.56 23.16 9.35 203.51
1959 3.91 15.37 22.03 38.65 21.26 15.61 19.12 12.73 18.42 13.28 11.31 26.11 217.80
1960 13.82 12.45 15.81 25.72 22.08 18.36 12.01 16.02 13.11 16.18 18.88 20.85 205.29
1961 16.60 17.86 17.47 11.59 22.21 18.11 15.51 17.52 20.69 14.07 18.29 16.47 206.39
1962 26.67 16.04 11.04 11.94 22.41 11.89 13.60 18.54 22.91 18.57 a 28.39 13.60 215.60
1963 20.99 16.37 17.06 12.44 19.12 9.60 13.73 18.23 13.12 20.68 4.55 9.08 174.97
1964 3.59 19.76 14.03 16.02 12.69 13.16 14.33 16.47 15.44 11.02 12.66 18.22 167.39
1965 11.74 11.12 6.36 14.28 14.18 18.73 37.20 10.06 24.67 15.27 15.50 14.20 193.31
1966 15.84 1.71 14.77 6.07 21.27 11.87 24.22 10.18 10.65 16.61 18.74 18.12 170.05
1967 10.21 18.83 21.82 20.90 13.46 11.48 14.02 20.32 19.51 16.37 22.44 12.60 201.96
1968 9.88 13.60 24.47 21.09 16.99 10.54 22.32 17.36 17.58 14.65 9.32 13.33 191.13
1969 6.39 9.47 10.71 22.35 17.75 24.88 28.90 13.28 18.01 12.86 16.20 15.00 195.80
1970 7.98 7.14 7.35 14.58 15.73 16.80 12.40 16.10 15.74 20.40 15.62 19.93 169.77
1971 16.64 13.12 19.98 17.37 24.59 23.62 22.69 16.67 9.89 19.11 12.02 8.67 204.37
1972 10.52 11.79 14.66 20.39 33.46 9.73 36.31 12.38 29.53 7.98 7.30 7.71 201.76
1973 3.31 3.70 7.71 24.38 16.28 23.40 9.40 17.85 18.15 21.32 10.38 18.16 174.04
1974 10.66 16.56 18.81 22.24 16.74 21.27 21.57 18.77 8.84 17.30 20.79 12.32 205.87
1975 6.61 4.26 15.99 16.79 17.50 18.83 15.60 11.26 12.61 22.25 17.22 33.35 192.27
1976 6.02 12.76 25.30 20.18 24.39 20.99 13.04 32.74 24.11 16.94 26.34 13.48 236.29
1977 4.45 1.05 12.65 15.93 26.17 14.70 16.97 18.72 10.88 20.00 16.14 4.95 162.61
1978 16.38 6.18 6.17 18.91 12.82 19.27 10.28 13.62 11.44 16.97 13.19 14.00 159.23
1979 8.16 6.65 11.98 23.38 18.76 23.85 17.07 22.35 6.57 17.57 20.09 19.58 196.01
1980 14.01 18.63 8.11 15.10 38.43 23.21 15.87 15.79 15.32 11.70 7.96 10.07 194.20
1981 14.59 13.75 8.55 10.47 23.00 17.92 16.20 13.41 15.04 15.43 16.46 17.47 182.29
1982 14.06 16.35 c 12.94 16.59 22.67 17.28 23.00 17.99 25.58 8.42 9.94 16.05 200.87
1983 1.89 1.72 1.52 2.03 2.21 15.91 24.55 14.29 12.36 20.05 20.99 16.10 133.62
1984 23.24 13.24 9.43 5.85 6.73 17.49 10.49 11.49 12.51 16.75 17.79 13.89 158.90
1985 14.83 12.91 5.15 24.22 13.04 13.80 14.62 14.02 12.48 18.81 19.95 20.11 183.94
1986 10.14 9.02 19.80 11.03 28.35 14.16 21.47 13.22 16.88 7.67 15.48 6.33 173.55
1987 17.77 5.86 25.91 20.18 9.22 27.97 25.80 16.52 11.96 16.61 19.46 15.09 212.35
1988 8.62 5.74 8.93 14.85 21.92 14.06 10.54 13.15 13.45 21.58 15.16 17.06 165.06
1989 18.72 10.66 14.37 24.26 19.83 14.59 21.77 23.21 9.24 28.26 8.72 26.21 219.84
1990 11.72 8.24 13.20 17.87 21.56 15.13 8.37 20.37 26.72 15.94 15.12 15.34 189.58
1991 6.18 8.73 35.30 21.43 22.91 14.68 17.30 18.37 38.81 12.51 23.26 9.06 228.54
1992 21.77 2.28 2.60 5.95 9.98 19.16 19.06 15.89 15.36 19.94 14.85 9.45 156.29
1993 15.83 10.07 19.44 18.91 20.41 21.56 19.60 17.07 9.07 15.40 12.03 25.55 204.94
1994 8.34 10.94 13.24 12.27 25.16 12.34 14.74 11.98 10.23 12.73 4.75 24.92 161.64
1995 12.29 7.52 11.73 18.09 16.74 13.71 9.92 15.47 12.41 20.90 10.70 17.30 166.78
1996 23.33 6.84 8.68 24.30 28.01 12.62 12.27 13.57 11.54 12.30 14.08 12.84 180.38
1997 17.17 16.01 14.67 17.88 a 13.25 9.35 17.41 17.98 12.53 13.72 10.86 3.38 164.21
1998 0.64 1.98 2.95 4.96 16.08 16.19 8.09 14.93 10.75 14.81 17.35 19.91 128.64
1999 18.22 18.05 27.33 21.21 12.13 11.55 13.93 8.46 13.57 10.99 13.33 25.89 194.66
2000 19.50 18.63 21.68 21.18 20.09 13.33 13.58 19.56 10.44 15.14 10.35 21.95 205.43
2001 21.71 12.51 9.00 12.17 11.17 14.83 15.68 19.28 7.35 17.48 14.47 18.56 174.21
2002 10.81 15.13 9.66 22.11 21.35 21.56 20.14 11.28 21.69 7.64 14.81 8.34 184.52
2003 10.71 7.90 16.25 31.84 29.97 12.67 15.17 11.36 12.48 19.03 10.06 17.43 194.87
2004 7.26 12.02 16.84 14.73 24.20 21.00 11.87 17.34 12.57 11.26 13.67 17.99 180.75
2005 14.33 3.16 21.64 26.11 23.95 15.64 14.08 10.84 20.34 12.17 13.85 14.94 191.05
2006 9.24 8.88 7.96 14.22 17.61 16.47 17.32 20.45 14.52 13.79 18.77 13.09 172.32
2007 4.90 19.50 13.15 18.73 23.03 14.79 15.72 9.35 11.84 15.72 26.13 21.00 193.86
2008 19.28 8.98 15.37 29.29 16.28 20.83 11.50 5.64 13.87 20.47 16.61 9.56 187.68
2009 10.83 12.11 12.51 15.85 15.75 9.28 24.36 13.69 16.18 10.14 16.58 10.56 167.84
2010 8.16 1.83 23.95 22.76 13.72 13.17 13.92 14.23 15.00 12.22 14.23 11.83 165.02
2011 12.24 12.25 20.02 7.98 18.35 15.85 d 14.21 19.61 14.43 11.74 18.21 17.61 182.50
2012 10.75 13.19 12.91 8.31 22.98 14.86 14.21 13.62 0.00 z 0.00 z 0.00 z 0.00 z 110.83
Period of Record Statistics
MEAN 12.28 10.73 14.45 17.89 19.30 16.48 16.83 15.93 15.50 15.57 16.03 15.80 187.01
S.D. 5.76 5.15 6.58 7.27 6.34 4.26 5.93 4.46 5.76 4.17 5.52 6.18 21.79
SKEW 0.27 -0.13 0.51 0.19 0.15 0.43 1.38 0.79 1.56 0.22 0.37 0.19 -0.20
MAX 26.67 19.76 35.30 38.65 38.43 27.97 37.20 32.74 38.81 28.26 31.79 33.35 236.29
MIN 0.64 1.05 1.52 2.03 2.21 9.28 8.09 5.64 6.57 7.64 4.55 2.40 128.64
NO YRS 60 60 60 60 60 60 60 60 59 59 59 59 59