ST LEO, FLORIDA

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 72.3 74.6 79.4 83.8 89.3 91.6 92.3 92.2 90.6 85.4 79.3 73.7 83.7
Highest Mean Max. Temperature (F) 82.9 81.6 83.8 88.1 93.7 96.7 94.4 94.6 92.4 89.0 84.2 80.1 96.7
Year Highest Occurred 1974 1990 1976 1999 2000 1998 1992 1987 1991 1985 1986 1971 1998
Lowest Mean Max. Temperature (F) 63.8 65.3 74.2 78.5 86.3 89.0 89.6 90.4 88.4 81.0 74.5 69.5 63.8
Year Lowest Occurred 1977 1978 1996 1987 1972 1995 1974 1994 1994 1987 1976 1989 1977
Mean Temperature (F) 60.4 62.3 66.9 71.1 76.8 80.8 82.0 82.0 80.3 74.2 67.8 62.0 72.2
Highest Mean Temperature (F) 71.4 68.4 72.7 75.3 81.3 86.4 84.3 83.7 81.4 78.4 74.1 68.8 86.4
Year Highest Occurred 1974 1990 1997 1994 1995 1998 1998 1987 1995 1985 1986 1971 1998
Lowest Mean Temperature (F) 51.3 53.5 62.4 65.9 73.9 78.1 79.4 79.7 78.7 69.3 62.5 55.7 51.3
Year Lowest Occurred 1977 1978 1996 1987 1992 1974 1974 1992 1976 1987 1976 1989 1977
Mean Min. Temperature (F) 48.4 49.9 54.4 58.3 64.3 69.9 71.6 71.7 70.0 62.9 56.2 50.3 60.7
Highest Mean Min. Temperature (F) 60.0 55.8 61.6 63.5 70.2 76.1 74.6 74.9 72.3 67.8 64.0 57.6 76.1
Year Highest Occurred 1974 1982 1997 1991 1995 1998 1998 1995 1998 1985 1986 1971 1998
Lowest Mean Min. Temperature (F) 37.4 41.6 48.2 53.4 60.1 67.0 69.2 68.5 67.6 57.6 50.4 42.0 37.4
Year Lowest Occurred 1981 1978 1971 1987 1992 1976 1974 1992 1981 1987 1976 1989 1981
Mean Precipitation (in.) 3.41 3.38 4.06 2.35 3.89 7.13 7.69 7.47 6.54 2.75 2.52 2.65 53.84
Highest Precipitation (in.) 6.13 11.04 16.50 7.02 16.81 19.08 11.46 16.99 13.33 6.42 12.48 13.99 19.08
Year Highest Occurred 1982 1998 1987 1997 1979 1974 1994 1979 1982 1995 1988 1997 1974
Lowest Precipitation (in.) 0.64 0.14 0.55 0.06 0.03 0.08 2.09 2.72 0.75 0.03 0.02 0.13 0.02
Year Lowest Occurred 1972 1999 2000 1981 2000 1998 1979 1980 1990 2000 1978 1984 1978
Heating Degree Days (F) 220. 140. 66. 12. 0. 0. 0. 0. 0. 6. 50. 154. 648.
Cooling Degree Days (F) 61. 63. 125. 193. 366. 472. 526. 525. 458. 289. 132. 61. 3271.

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