SAN SEBASTIAN 2 WNW, PUERTO RICO

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 88.0 88.2 89.2 90.2 91.1 92.3 93.0 92.9 92.5 91.9 90.3 88.4 90.7
Highest Mean Max. Temperature (F) 90.7 90.6 91.7 91.7 93.0 94.1 95.3 94.9 94.0 93.8 92.2 92.4 95.3
Year Highest Occurred 1973 1998 1983 1995 1998 1998 1992 1994 1990 1980 1997 1997 1992
Lowest Mean Max. Temperature (F) 84.6 85.1 86.6 86.8 88.4 90.3 90.5 91.4 89.9 90.3 88.0 82.7 82.7
Year Lowest Occurred 1972 1971 1976 1971 1971 1976 1971 1976 1975 1985 1973 1975 1975
Mean Temperature (F) 74.6 74.6 75.7 77.1 78.8 80.1 80.2 80.5 80.1 79.5 77.9 75.7 77.9
Highest Mean Temperature (F) 76.6 76.6 77.8 78.6 80.6 82.0 82.1 82.2 81.9 81.0 79.9 78.1 82.2
Year Highest Occurred 1998 1998 1998 1992 1998 1997 1980 1998 1980 1980 1997 1995 1998
Lowest Mean Temperature (F) 71.8 72.5 73.1 74.9 76.5 78.2 77.5 78.4 78.5 78.1 75.8 73.1 71.8
Year Lowest Occurred 1985 1976 1976 1976 1971 1974 1974 1971 1975 1971 1973 1973 1985
Mean Min. Temperature (F) 61.1 61.0 62.2 64.0 66.5 67.8 67.4 68.0 67.6 67.1 65.5 63.0 65.1
Highest Mean Min. Temperature (F) 63.7 63.5 65.2 66.3 69.4 70.8 70.1 69.8 69.8 69.6 67.8 66.9 70.8
Year Highest Occurred 1981 1988 1981 1992 1981 1997 1983 1995 1995 1998 1999 1998 1997
Lowest Mean Min. Temperature (F) 56.1 58.1 59.4 60.1 63.1 65.0 62.9 65.2 65.3 64.9 61.2 59.6 56.1
Year Lowest Occurred 1985 1983 1987 1987 1974 1974 1974 1971 1971 1983 1976 1989 1985
Mean Precipitation (in.) 2.12 3.07 3.83 6.81 12.99 11.25 7.89 10.35 10.89 12.29 6.00 2.96 90.45
Highest Precipitation (in.) 8.81 11.26 9.07 15.68 26.33 20.20 14.04 16.45 19.30 17.87 12.60 6.28 26.33
Year Highest Occurred 1997 1996 1981 1993 1986 1999 1991 1979 1998 1999 1975 1987 1986
Lowest Precipitation (in.) 0.21 0.07 0.52 0.13 5.39 2.53 0.87 5.34 3.48 5.90 0.98 0.05 0.05
Year Lowest Occurred 1973 1977 1983 1997 1990 1997 1983 1990 1986 1975 1995 1985 1985
Heating Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
Cooling Degree Days (F) 296. 269. 332. 363. 428. 451. 471. 479. 451. 449. 387. 332. 4708.

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