RIO PIEDRAS EXP STN, PUERTO RICO

Monthly Average Maximum Temperature (Degrees Fahrenheit)

(668306)

File last updated on May 16,
*** Note *** Provisional Data *** After Year/Month 201202
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
1959 83.13 a 83.32 87.10 86.90 84.55 89.57 89.48 88.83 a 90.50 88.48 88.13 86.16 87.18
1960 86.10 a 86.97 87.42 87.70 89.13 90.10 88.56 f 88.68 89.41 a 88.84 88.63 83.37 a 87.85
1961 84.80 a 83.86 84.94 87.55 a 87.23 88.63 87.10 a 88.03 88.73 87.63 a 84.27 83.74 86.38
1962 ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
1963 82.61 83.71 84.39 85.63 84.97 87.80 87.32 88.65 88.57 89.10 a 85.97 86.77 86.29
1964 83.48 85.10 85.67 a 84.90 88.80 a 87.90 86.81 87.65 88.53 87.71 86.13 81.19 86.16
1965 80.00 82.07 85.61 84.00 84.13 86.43 87.23 a 86.83 a 87.97 87.52 86.00 83.71 85.13
1966 83.77 82.82 83.45 85.57 85.42 87.07 87.77 88.19 87.73 87.55 84.57 82.37 a 85.52
1967 82.35 83.14 81.97 83.66 a 85.94 89.23 86.58 88.32 88.40 88.29 86.28 a 82.97 85.59
1968 81.39 83.41 81.68 82.63 86.29 87.37 87.61 87.87 88.57 88.68 87.07 b 83.26 85.49
1969 82.45 82.32 85.19 86.87 88.77 90.33 88.97 88.90 88.30 89.06 85.80 83.57 a 86.71
1970 84.62 e 83.57 85.26 86.03 85.55 86.03 86.35 87.58 87.73 87.19 84.97 82.39 85.61
1971 82.52 82.89 85.17 b 85.70 87.42 88.90 89.48 89.58 90.43 89.00 86.76 a 83.81 86.81
1972 82.71 82.93 83.26 85.63 87.16 89.90 88.74 88.65 89.60 90.52 88.97 85.23 86.94
1973 85.45 84.79 86.77 88.50 90.39 88.73 89.45 89.16 89.67 89.32 87.27 84.06 87.80
1974 81.68 83.68 84.16 85.50 88.35 89.07 90.94 88.52 88.07 87.32 84.63 84.03 86.33
1975 81.81 83.89 84.16 84.50 86.77 88.90 89.32 88.29 87.83 86.35 85.73 81.39 85.75
1976 82.29 84.86 85.81 87.13 88.03 87.31 d 88.03 b 88.97 88.23 87.29 87.20 84.19 86.61
1977 83.33 a 84.57 84.48 84.20 86.32 87.97 88.97 87.45 87.70 88.06 86.17 85.35 86.22
1978 84.39 84.93 85.06 85.10 87.16 88.23 87.45 87.58 89.00 88.71 c 85.63 84.87 86.51
1979 83.35 83.71 82.45 b 84.40 85.61 87.43 88.58 88.23 88.03 a 90.30 a 85.55 a 83.84 85.96
1980 84.16 84.41 85.13 86.87 89.90 91.17 89.74 90.61 89.20 89.90 87.37 85.16 87.80
1981 84.74 84.07 85.77 84.50 88.23 88.63 88.71 89.58 90.03 90.29 87.60 84.32 87.21
1982 84.19 83.29 85.03 86.63 86.23 89.30 88.42 88.61 89.40 89.90 86.70 82.97 86.72
1983 84.42 85.89 87.87 87.70 88.03 91.47 89.13 88.90 a 89.33 88.74 86.80 83.58 87.66
1984 82.81 83.79 85.71 89.47 86.45 89.10 87.90 89.00 87.87 88.03 83.97 82.26 86.36
1985 ----- z 82.82 83.52 85.23 86.84 90.27 89.68 89.71 89.37 86.90 86.07 84.65 86.82
1986 84.32 84.68 86.84 87.77 87.29 89.27 89.45 89.71 90.03 88.10 85.70 85.16 87.36
1987 85.19 85.50 84.97 88.67 87.74 89.73 89.29 g 90.94 91.20 90.10 88.03 86.25 c 88.03
1988 83.45 84.10 85.48 87.47 89.65 90.70 89.77 88.39 88.93 88.65 86.77 84.48 87.32
1989 83.81 83.27 b 84.00 85.90 87.87 85.97 88.55 88.94 89.17 a 88.55 86.03 86.81 86.57
1990 84.68 83.46 83.32 85.97 88.52 88.97 89.45 89.81 90.07 88.84 88.93 84.39 87.20
1991 84.23 84.54 85.71 85.43 87.81 90.23 89.68 f 91.00 90.10 89.58 86.63 83.10 87.12
1992 84.00 85.03 86.77 87.47 86.35 ----- z 89.61 90.06 89.33 89.96 f 85.53 ----- z 87.13
1993 84.65 85.29 86.45 89.23 87.81 90.30 89.26 91.32 90.00 d 90.48 87.37 86.39 88.21
1994 85.52 85.61 87.65 87.23 90.13 90.70 89.52 91.16 89.60 89.48 87.93 87.06 88.47
1995 85.45 86.21 84.00 88.33 89.42 89.83 90.94 ----- z 90.11 b 88.42 87.93 85.97 87.87
1996 84.81 84.90 86.58 86.00 87.26 89.07 88.50 a 89.16 89.66 a 89.68 85.97 82.68 87.02
1997 83.65 83.46 84.68 89.00 a 90.23 92.10 90.52 90.42 90.73 89.35 ----- z 89.19 88.48
1998 87.06 87.50 86.81 87.03 89.16 ----- z 90.76 b 91.29 90.96 e 89.74 ----- z 84.94 88.53
1999 84.16 82.57 85.10 87.27 90.94 89.40 89.00 90.13 90.33 88.48 ----- z ----- z 87.74
2000 ----- z ----- z ----- z ----- z ----- z 90.20 91.68 ----- z 90.90 91.23 87.60 86.63 a 89.71
2001 86.74 85.73 q 88.36 f 87.17 89.77 90.53 90.90 90.77 91.34 a 91.05 l 86.57 85.68 88.83
2002 85.06 ----- z ----- z 85.73 s 88.67 j 90.72 l 91.87 p 92.80 k 91.89 k 91.09 h 90.00 o 87.00 r 85.06
2003 87.47 p 86.89 i 90.15 k 88.94 m 89.86 j 90.10 j 90.13 p 89.86 j 92.47 k 91.67 j ----- z 86.43 q 9999.00
2004 85.50 s 86.54 p 85.00 i 88.00 l 86.28 m 90.65 j 89.78 v 91.58 l 92.44 n 89.33 p 86.27 s 84.62 r 9999.00
2005 82.55 t 81.00 j 88.81 o 90.32 k 89.00 m 92.06 m 90.60 p 91.25 k 93.29 m 90.53 l 88.41 m 86.00 y 9999.00
2006 84.67 p 85.89 j 86.95 i 87.53 o 89.75 k 91.33 i 90.00 s 90.35 h 91.84 k 91.60 k 88.54 q 86.45 t 9999.00
2007 85.25 o 88.21 i 88.37 l ----- z 92.11 l 91.74 k 92.50 y 92.14 q 93.00 t 90.57 j 88.81 n 84.08 r 9999.00
2008 83.87 p 84.53 j 85.58 l ----- z ----- z 89.57 p 90.08 r 92.21 q 91.95 k 90.06 m 88.18 s 84.55 t 9999.00
2009 86.00 p 85.16 i 84.27 p 87.56 n 86.94 m 91.11 k 92.33 s 90.78 v 91.24 m 91.41 n 88.00 n 87.20 u 9999.00
2010 85.15 r 88.94 j 89.50 q 89.65 m 89.12 o 90.47 k 90.88 w 91.70 k 90.55 j 90.75 k 87.00 n 84.38 o 9999.00
2011 86.14 q 84.95 i 84.81 j 87.00 n 87.20 k 89.82 h 89.42 s 91.38 r 90.21 k 90.47 l 87.59 m 84.67 p 9999.00
2012 83.07 p 84.50 i ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z ----- z 9999.00
Period of Record Statistics
MEAN 83.89 84.17 85.13 86.40 87.65 89.10 88.92 89.14 89.30 88.78 86.54 84.45 86.67
S.D. 1.45 1.23 1.50 1.61 1.69 1.44 1.29 1.17 1.04 1.12 1.24 1.68 0.83
SKEW -0.21 0.77 -0.47 -0.22 0.03 -0.48 0.06 0.41 0.11 -0.09 -0.28 0.46 -0.68
MAX 87.06 87.50 87.87 89.47 90.94 92.10 91.68 91.32 91.34 91.23 88.97 89.19 88.47
MIN 80.00 82.07 81.68 82.63 84.13 85.97 86.35 86.83 87.70 86.35 83.97 81.19 85.13
NO YRS 41 40 40 41 41 40 39 40 42 40 39 40 31