GURABO SUBSTN, PUERTO RICO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 83.5 83.9 85.0 86.3 87.2 88.3 88.8 89.1 88.9 88.3 86.3 84.2 86.7
Highest Mean Max. Temperature (F) 85.5 85.6 87.2 88.9 89.8 90.1 90.4 91.4 91.2 90.4 88.2 87.7 88.1
Year Highest Occurred 1990 1983 1981 1969 1964 1988 1974 1987 1987 1987 1990 1989 1987
Lowest Mean Max. Temperature (F) 81.5 82.2 82.9 83.8 85.3 86.4 86.7 88.0 86.7 86.2 84.2 81.0 85.5
Year Lowest Occurred 1975 1976 1976 1968 1982 1976 1970 1977 1979 1985 1984 1975 1976
Mean Temperature (F) 72.4 72.7 73.7 75.5 77.4 78.8 79.1 79.2 78.9 78.2 76.2 73.8 76.3
Highest Mean Temperature (F) 74.7 74.4 76.4 78.0 79.8 80.5 80.4 80.5 80.3 79.6 78.0 76.5 77.7
Year Highest Occurred 1981 1963 1983 1969 1969 1980 1985 1987 1987 1987 1981 1987 1981
Lowest Mean Temperature (F) 70.5 71.5 71.1 72.8 75.8 76.8 77.8 78.1 77.5 75.6 74.9 71.9 74.8
Year Lowest Occurred 1965 1989 1976 1968 1989 1989 1989 1989 1989 1989 1989 1988 1989
Mean Min. Temperature (F) 61.3 61.5 62.3 64.6 67.6 69.1 69.2 69.2 68.8 68.0 66.1 63.3 65.9
Highest Mean Min. Temperature (F) 64.1 63.5 66.2 68.3 71.2 72.0 71.4 71.0 71.3 69.9 68.9 67.1 68.0
Year Highest Occurred 1981 1978 1983 1981 1969 1979 1979 1979 1979 1979 1974 1981 1981
Lowest Mean Min. Temperature (F) 56.6 59.4 58.7 61.6 64.5 65.5 66.4 66.5 65.4 62.5 62.0 57.3 62.8
Year Lowest Occurred 1990 1990 1967 1974 1989 1989 1989 1989 1990 1989 1989 1989 1989
Mean Precipitation (in.) 3.06 2.49 2.99 3.89 6.46 5.32 5.14 7.57 6.98 7.43 6.94 5.22 63.49
Highest Precipitation (in.) 11.21 6.35 7.63 9.10 14.91 22.10 9.52 13.54 16.53 31.04 21.84 12.97 118.40
Year Highest Occurred 1969 1989 1972 1983 1969 1970 1983 1963 1989 1970 1977 1970 1970
Lowest Precipitation (in.) 0.88 0.71 0.57 0.98 0.84 0.41 1.56 2.86 2.62 1.53 1.98 0.20 33.42
Year Lowest Occurred 1985 1977 1967 1965 1974 1977 1971 1984 1983 1989 1976 1989 1967
Heating Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
Cooling Degree Days (F) 229. 216. 270. 315. 384. 414. 437. 440. 417. 409. 336. 273. 4140.

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