CAYEY 1 E, PUERTO RICO

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 77.9 78.3 79.4 81.0 82.7 84.1 84.5 84.6 84.3 83.3 81.3 78.8 81.7
Highest Mean Max. Temperature (F) 80.2 80.2 81.9 83.4 84.5 86.2 86.6 86.2 86.4 85.3 83.4 82.4 86.6
Year Highest Occurred 1998 1998 1983 1984 1999 1997 1989 1998 1990 1998 1983 1989 1989
Lowest Mean Max. Temperature (F) 76.2 76.7 77.1 78.5 79.9 81.8 82.2 81.5 82.2 80.0 79.4 76.2 76.2
Year Lowest Occurred 1975 1989 1976 1979 1985 1986 1978 1978 1979 1985 1978 1975 1975
Mean Temperature (F) 69.2 69.3 70.0 71.9 74.4 76.3 76.6 76.4 75.8 74.8 73.1 70.4 73.2
Highest Mean Temperature (F) 72.3 71.4 72.7 74.2 76.2 78.3 78.2 77.8 77.8 77.2 75.0 72.8 78.3
Year Highest Occurred 1998 1998 1983 1987 1998 1997 1989 1997 1998 1998 1997 1987 1997
Lowest Mean Temperature (F) 66.8 67.2 67.7 70.3 73.0 74.5 74.5 74.3 74.2 72.9 71.3 68.3 66.8
Year Lowest Occurred 1979 1999 1979 1976 1982 1978 1978 1978 1978 1978 1978 1996 1979
Mean Min. Temperature (F) 60.5 60.2 60.6 62.8 66.1 68.4 68.7 68.1 67.3 66.3 64.8 62.0 64.7
Highest Mean Min. Temperature (F) 64.3 63.6 64.0 66.6 68.4 70.3 70.3 70.1 69.7 69.1 67.2 66.4 70.3
Year Highest Occurred 1998 1997 1998 1987 1993 1997 1997 1997 1998 1998 1999 1998 1997
Lowest Mean Min. Temperature (F) 57.2 56.8 57.5 60.7 63.7 66.6 65.8 66.0 65.1 64.4 62.2 59.0 56.8
Year Lowest Occurred 1979 1979 2000 1982 1974 1976 1982 1982 1971 1981 1971 1973 1979
Mean Precipitation (in.) 3.30 2.78 2.53 3.25 5.17 3.53 4.87 6.49 8.12 6.68 6.18 3.48 56.38
Highest Precipitation (in.) 21.15 8.21 6.55 8.34 15.64 15.63 9.51 22.18 25.23 24.43 19.76 8.55 25.23
Year Highest Occurred 1992 1998 1972 1986 1985 1979 1993 1979 1996 1985 1984 1998 1996
Lowest Precipitation (in.) 0.82 0.60 0.69 0.88 0.54 0.51 1.79 1.83 1.24 1.09 1.29 0.28 0.28
Year Lowest Occurred 1978 1999 1993 1972 1990 1985 1974 1984 1971 1989 1973 1989 1989
Heating Degree Days (F) 3. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 2. 5.
Cooling Degree Days (F) 134. 119. 157. 207. 290. 337. 358. 352. 324. 304. 241. 168. 2991.

Southeast Regional Climate Center, sercc@climate.ncsu.edu