Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. 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 |