DOVER, DELAWARE

NCDC 1971-2000 Monthly Normals

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Mean Max. Temperature (F) 43.7 46.8 55.2 65.4 74.8 82.9 87.4 85.5 79.5 69.1 58.7 48.4 66.5
Highest Mean Max. Temperature (F) 51.3 56.7 62.3 71.3 82.6 87.7 92.8 89.0 84.1 74.2 63.8 56.3 92.8
Year Highest Occurred 1990 1990 1977 1985 1991 1987 1988 1988 1980 1990 1975 1984 1988
Lowest Mean Max. Temperature (F) 33.6 34.5 48.5 59.6 70.0 78.1 80.5 81.0 75.4 63.6 51.3 36.3 33.6
Year Lowest Occurred 1977 1979 1993 1975 1996 1992 2000 1992 2000 1976 1996 1989 1977
Mean Temperature (F) 35.3 37.7 45.4 54.6 64.3 72.9 77.8 76.2 69.9 58.8 49.2 39.9 56.8
Highest Mean Temperature (F) 42.9 45.3 51.1 59.1 70.9 76.8 81.5 79.4 73.6 64.9 55.6 46.3 81.5
Year Highest Occurred 1998 1990 1977 1994 1991 1987 1987 1980 1980 1971 1985 1984 1987
Lowest Mean Temperature (F) 25.2 26.2 39.8 49.5 60.4 68.4 72.8 72.6 67.1 53.1 43.2 27.8 25.2
Year Lowest Occurred 1977 1979 1984 1975 1992 1979 2000 1992 2000 1988 1996 1989 1977
Mean Min. Temperature (F) 26.9 28.5 35.6 43.8 53.8 62.8 68.2 66.9 60.3 48.5 39.7 31.4 47.2
Highest Mean Min. Temperature (F) 35.1 35.2 39.9 47.5 59.2 67.6 70.9 70.5 64.7 57.3 47.6 37.3 70.9
Year Highest Occurred 1998 1998 1977 1994 1991 1973 1993 1978 1971 1971 1985 1982 1993
Lowest Mean Min. Temperature (F) 16.8 17.7 31.1 39.4 48.3 58.2 64.5 63.5 57.1 41.4 33.4 19.3 16.8
Year Lowest Occurred 1977 1978 1984 1975 1994 1979 1971 1994 1994 1988 1976 1989 1977
Mean Precipitation (in.) 3.94 3.04 4.40 3.47 4.29 3.77 4.16 4.73 4.56 3.26 3.16 3.50 46.28
Highest Precipitation (in.) 7.67 6.27 9.24 8.13 7.81 9.90 14.24 10.93 10.52 8.09 6.55 8.39 14.24
Year Highest Occurred 1979 1971 1994 1983 1990 1996 1975 1971 1971 1976 1997 1996 1975
Lowest Precipitation (in.) 0.35 0.66 1.59 0.65 0.90 0.95 1.07 1.17 1.00 0.26 0.54 0.80 0.26
Year Lowest Occurred 1981 1978 1981 1985 1999 1993 1974 1972 1978 2000 1991 1980 2000
Heating Degree Days (F) 920. 767. 608. 316. 100. 7. 0. 0. 16. 223. 476. 779. 4212.
Cooling Degree Days (F) 0. 0. 0. 4. 77. 243. 396. 348. 162. 31. 1. 0. 1262.

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