S
M
T
W
T
F
S
29
48°
37°
30
50°
42°
1
51°
42°
2
50°
41°
3
48°
42°
4
48°
41°
5
50°
38°
6
57°
41°
7
57°
39°
8
56°
36°
9
51°
33°
10
51°
40°
11
59°
24°
12
58°
22°
13
41°
23°
14
43°
27°
15
48°
26°
16
49°
34°
17
54°
35°
18
52°
37°
19
58°
36°
20
56°
33°
21
58°
37°
22
56°
37°
23
60°
23°
24
57°
20°
25
42°
22°
26
42°
27°
27
49°
36°
28
54°
38°
29
59°
40°
30
60°
40°
31
60°
36°
1
61°
27°
2
60°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Norman
Norman's December 2026 forecast shows daily high temperatures ranging from 41° to 61°, with overnight lows between 20° and 42°. The average high for December is 53° with an average low of 34°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Norman. See also: January | February | March.