SAN SEBASTIAN 2 WNW, PUERTO RICO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 87.5 87.7 88.9 89.7 90.6 91.6 91.8 92.4 92.2 91.6 89.5 87.7 90.1
Highest Mean Max. Temperature (F) 90.7 89.2 91.7 91.7 92.6 93.4 94.3 94.5 94.0 93.8 91.2 90.2 91.7
Year Highest Occurred 1973 1983 1983 1987 1973 1969 1980 1990 1990 1980 1980 1989 1980
Lowest Mean Max. Temperature (F) 84.3 85.1 85.9 86.2 88.4 88.0 85.3 91.1 89.9 88.8 87.9 82.7 88.6
Year Lowest Occurred 1965 1971 1968 1968 1971 1972 1972 1965 1975 1970 1961 1975 1971
Mean Temperature (F) 73.9 74.1 75.2 76.5 78.3 79.4 79.5 80.0 79.4 79.0 77.1 75.0 77.3
Highest Mean Temperature (F) 75.8 75.8 77.7 78.4 80.6 81.1 82.1 81.8 81.9 81.0 79.2 77.8 79.0
Year Highest Occurred 1981 1981 1983 1980 1981 1988 1980 1980 1980 1980 1987 1987 1980
Lowest Mean Temperature (F) 70.8 71.5 72.6 72.7 76.5 77.8 76.6 78.4 76.1 77.1 75.7 72.6 75.7
Year Lowest Occurred 1968 1968 1968 1968 1971 1972 1972 1971 1987 1970 1966 1967 1968
Mean Min. Temperature (F) 60.3 60.5 61.5 63.3 65.9 67.1 67.1 67.6 66.5 66.4 64.6 62.3 64.4
Highest Mean Min. Temperature (F) 63.7 63.5 65.2 66.0 69.4 70.1 70.1 69.8 69.7 69.0 67.3 66.3 66.6
Year Highest Occurred 1981 1988 1981 1988 1981 1979 1983 1980 1980 1990 1987 1987 1981
Lowest Mean Min. Temperature (F) 56.1 56.6 59.2 59.2 63.1 65.0 62.9 65.2 59.2 63.7 61.2 59.5 62.4
Year Lowest Occurred 1985 1968 1968 1968 1974 1974 1974 1971 1987 1968 1976 1967 1968
Mean Precipitation (in.) 1.98 2.72 3.38 7.17 13.22 11.44 8.02 9.99 10.42 11.76 6.76 2.94 89.80
Highest Precipitation (in.) 5.56 6.73 11.85 15.73 26.33 21.84 14.73 16.45 18.54 17.68 16.94 11.79 113.66
Year Highest Occurred 1970 1978 1961 1969 1986 1966 1969 1979 1978 1969 1968 1965 1968
Lowest Precipitation (in.) 0.21 0.07 0.23 0.32 5.39 4.68 0.87 5.05 3.48 5.90 1.12 0.05 71.75
Year Lowest Occurred 1973 1977 1970 1970 1990 1986 1983 1969 1986 1975 1988 1985 1977
Heating Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
Cooling Degree Days (F) 276. 255. 316. 345. 412. 432. 450. 465. 432. 434. 363. 310. 4490.

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