Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine and rip current conditions to the east coast of Florida and Georgia today, spreading north along much of the east coast of the U.S. this week. Heavy rainfall north and west of Imelda falling across coastal Florida and Georgia into the Carolinas could cause isolated flash and urban flooding through Tuesday. Read More >
Normals, Means & Extremes
December -
Values in red represent the extremes for the month.
D |
Temperature |
Degree Days |
Precipitation |
D |
|||||||||||
|
High Max. |
Low Max. |
High Min. |
Low Min. |
Heating |
Normal |
Cooling |
Normal |
Daily |
Normal |
Record |
||||
Max. |
Min. |
Avg. |
|||||||||||||
1 |
62 |
41 |
51 |
79 / 1903 |
44 / 1972 |
57 / 1909 |
27 / 2004 |
14 |
333 |
0 |
2424 |
0.02 |
0.81 |
0.45 / 1952 |
1 |
2 |
61 |
41 |
51 |
87 / 1915 |
42 / 1972 |
58 / 2012 |
28 / 2004 |
14 |
347 |
0 |
2424 |
0.03 |
0.84 |
0.63 / 2005 |
2 |
3 |
61 |
41 |
51 |
83 / 1979 |
45 / 1972 |
53 / 2014 |
27 / 1908 |
14 |
361 |
0 |
2424 |
0.03 |
0.87 |
0.60 / 1941 |
3 |
4 |
61 |
41 |
51 |
82 / 1939 |
44 / 1965 |
54 / 1938 |
28 / 2004 |
14 |
375 |
0 |
2424 |
0.03 |
0.90 |
0.97 / 1915 |
4 |
5 |
61 |
40 |
50 |
80 / 1918 |
43 / 1965 |
55 / 1966 |
23 / 1903 |
15 |
390 |
0 |
2424 |
0.03 |
0.93 |
0.65 / 1894 |
5 |
6 |
60 |
40 |
50 |
80 / 2023 |
42 / 1965 |
60 / 1918 |
22 / 1903 |
15 |
405 |
0 |
2424 |
0.02 |
0.95 |
0.82 / 1946 |
6 |
7 |
60 |
40 |
50 |
76 / 1907 |
41 / 1965 |
53 / 1950 |
24 / 1912 |
15 |
419 |
0 |
2424 |
0.03 |
0.98 |
0.98 / 1992 |
7 |
8 |
60 |
40 |
50 |
83 / 1915 |
43 / 1965 |
56 / 1909 |
24 / 1903 |
15 |
435 |
0 |
2424 |
0.03 |
1.01 |
1.02 / 1931 |
8 |
9 |
60 |
40 |
50 |
74 / 1979 |
36 / 1972 |
54 / 2016 |
24 / 1923 |
15 |
450 |
0 |
2424 |
0.04 |
1.05 |
0.40 / 1996 |
9 |
10 |
59 |
40 |
50 |
85 / 1912 |
41 / 1972 |
53 / 1937 |
24 / 1923 |
16 |
465 |
0 |
2424 |
0.03 |
1.08 |
0.75 / 2009 |
10 |
11 |
59 |
40 |
49 |
81 / 1912 |
35 / 1932 |
58 / 1937 |
24 / 1923 |
16 |
481 |
0 |
2424 |
0.03 |
1.11 |
0.50 / 1907 |
11 |
12 |
59 |
40 |
49 |
75 / 1913 |
43 / 1932 |
53 / 1893 |
20 / 1901 |
16 |
497 |
0 |
2424 |
0.04 |
1.15 |
1.12 / 2014 |
12 |
13 |
59 |
39 |
49 |
79 / 1998 |
41 / 1972 |
54 / 1933 |
20 / 1901 |
16 |
513 |
0 |
2424 |
0.03 |
1.18 |
0.85 / 1995 |
13 |
14 |
59 |
39 |
49 |
80 / 1958 |
36 / 1972 |
53 / 1950 |
20 / 1901 |
16 |
529 |
0 |
2424 |
0.03 |
1.21 |
0.97 / 2021 |
14 |
15 |
59 |
39 |
49 |
79 / 1958 |
40 / 1992 |
51 / 2006 |
19 / 1901 |
16 |
545 |
0 |
2424 |
0.04 |
1.25 |
0.58 / 1934 |
15 |
16 |
58 |
39 |
49 |
77 / 1976 |
42 / 1963 |
55 / 1893 |
22 / 1901 |
16 |
561 |
0 |
2424 |
0.04 |
1.29 |
0.64 / 1957 |
16 |
17 |
58 |
39 |
49 |
75 / 1977 |
41 / 1985 |
54 / 1977 |
23 / 1901 |
16 |
577 |
0 |
2424 |
0.03 |
1.32 |
0.36 / 2002 |
17 |
18 |
58 |
39 |
49 |
75 / 1979 |
35 / 1908 |
53 / 1938 |
23 / 1908 |
16 |
593 |
0 |
2424 |
0.04 |
1.36 |
1.37 / 2010 |
18 |
19 |
58 |
39 |
49 |
80 / 1981 |
39 / 1965 |
55 / 2010 |
23 / 1924 |
16 |
610 |
0 |
2424 |
0.04 |
1.40 |
1.53 / 2010 |
19 |
20 |
58 |
39 |
49 |
76 / 1944 |
35 / 1908 |
54 / 1964 |
26 / 1928 |
17 |
626 |
0 |
2424 |
0.03 |
1.43 |
0.86 / 1943 |
20 |
21 |
58 |
39 |
49 |
78 / 1919 |
36 / 1998 |
59 / 1977 |
23 / 1905 |
17 |
643 |
0 |
2424 |
0.04 |
1.47 |
0.84 / 1938 |
21 |
22 |
58 |
39 |
48 |
76 / 2005 |
34 / 1998 |
56 / 1977 |
20 / 1990 |
17 |
659 |
0 |
2424 |
0.04 |
1.51 |
0.74 / 1893 |
22 |
23 |
58 |
39 |
48 |
73 / 1964 |
36 / 1928 |
63 / 1955 |
14 / 1905 |
17 |
676 |
0 |
2424 |
0.04 |
1.55 |
0.91 / 2016 |
23 |
24 |
58 |
39 |
48 |
75 / 1964 |
39 / 1993 |
57 / 1979 |
13 / 1905 |
17 |
693 |
0 |
2424 |
0.05 |
1.60 |
0.75 / 1994 |
24 |
25 |
58 |
39 |
48 |
76 / 1902 |
32 / 1918 |
56 / 1977 |
21 / 1899 |
17 |
709 |
0 |
2424 |
0.04 |
1.64 |
0.92 / 2003 |
25 |
26 |
58 |
39 |
48 |
71 / 1999 |
35 / 1918 |
56 / 1977 |
20 / 1905 |
17 |
726 |
0 |
2424 |
0.04 |
1.68 |
0.62 / 2019 |
26 |
27 |
58 |
39 |
48 |
72 / 1991 |
39 / 1933 |
56 / 1977 |
23 / 1930 |
17 |
742 |
0 |
2424 |
0.04 |
1.72 |
1.02 / 1936 |
27 |
28 |
57 |
39 |
48 |
73 / 1977 |
40 / 1908 |
58 / 1977 |
24 / 1930 |
17 |
759 |
0 |
2424 |
0.04 |
1.76 |
0.79 / 1977 |
28 |
29 |
57 |
39 |
48 |
75 / 2023 |
40 / 1929 |
57 / 1977 |
22 / 1929 |
17 |
776 |
0 |
2424 |
0.05 |
1.81 |
0.93 / 1965 |
29 |
30 |
57 |
39 |
48 |
74 / 1904 |
44 / 2014 |
53 / 1981 |
15 / 1905 |
17 |
792 |
0 |
2424 |
0.04 |
1.85 |
0.44 / 2016 |
30 |
31 |
57 |
40 |
48 |
73 / 1913 |
39 / 1919 |
53 / 1981 |
19 / 1929 |
17 |
809 |
0 |
2424 |
0.04 |
1.89 |
1.00 / 1906 |
31 |
Avg. |
58.8 |
39.6 |
49.2 |
|
490 |
|
0 |
|
1.10 |
|
Avg. |
||||
D |
Max. |
Min. |
Avg. |
High Max. |
Low Max. |
High Min. |
Low Min. |
Heating |
Normal |
Cooling |
Normal |
Daily |
Normal |
Record |
D |
Normal |
|||||||||||||||
Temperature |
Degree Days |
Precipitation |