HUMACOA 2 SSE, PUERTO RICO

NCDC 1961-1990 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 83.8 84.0 85.1 86.2 87.1 88.0 88.5 88.9 88.7 88.4 86.6 85.0 86.7
Highest Mean Max. Temperature (F) 86.4 87.6 87.9 88.7 89.7 89.6 90.8 91.1 92.1 90.3 89.5 88.3 88.3
Year Highest Occurred 1979 1987 1987 1986 1990 1987 1990 1986 1990 1989 1989 1978 1986
Lowest Mean Max. Temperature (F) 80.4 81.1 81.6 83.4 85.4 85.9 86.9 86.9 82.1 85.5 83.4 81.1 85.1
Year Lowest Occurred 1962 1962 1979 1978 1979 1976 1961 1961 1987 1961 1987 1961 1961
Mean Temperature (F) 74.6 74.7 75.6 77.0 79.0 80.4 80.8 80.8 80.5 79.9 77.9 75.9 78.1
Highest Mean Temperature (F) 76.2 76.6 78.4 79.8 81.1 81.9 82.4 81.8 82.6 81.4 80.0 80.0 79.0
Year Highest Occurred 1970 1970 1983 1969 1973 1969 1985 1985 1986 1987 1978 1986 1986
Lowest Mean Temperature (F) 72.8 72.1 73.2 74.8 76.4 77.1 79.5 79.5 76.3 78.6 75.8 73.7 76.9
Year Lowest Occurred 1965 1962 1979 1990 1989 1990 1990 1961 1987 1989 1962 1961 1989
Mean Min. Temperature (F) 65.3 65.3 66.0 67.8 70.9 72.7 73.1 72.8 72.1 71.4 69.2 66.7 69.4
Highest Mean Min. Temperature (F) 68.2 67.6 70.6 71.1 73.8 75.0 75.1 74.1 74.4 72.9 71.5 72.1 71.0
Year Highest Occurred 1983 1977 1983 1969 1969 1977 1985 1978 1982 1980 1978 1986 1983
Lowest Mean Min. Temperature (F) 62.5 60.9 60.5 63.3 64.0 65.6 68.2 69.4 67.9 66.8 65.6 61.7 65.9
Year Lowest Occurred 1988 1987 1987 1990 1990 1990 1990 1989 1989 1989 1989 1990 1989
Mean Precipitation (in.) 4.78 4.04 4.09 5.53 10.84 8.72 9.52 11.73 10.77 12.47 9.60 6.63 98.72
Highest Precipitation (in.) 24.17 15.12 10.52 23.77 29.02 42.11 24.08 38.31 30.12 29.10 26.27 24.04 248.05
Year Highest Occurred 1962 1961 1985 1962 1962 1962 1962 1961 1963 1962 1987 1961 1962
Lowest Precipitation (in.) 1.49 0.92 1.25 0.64 0.72 1.54 3.40 3.25 2.53 4.34 1.78 1.14 40.19
Year Lowest Occurred 1977 1983 1968 1984 1990 1977 1990 1967 1967 1983 1966 1967 1967
Heating Degree Days (F) 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0.
Cooling Degree Days (F) 298. 272. 329. 360. 434. 462. 490. 490. 465. 462. 387. 338. 4787.

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