S
M
T
W
T
F
S
29
43°
35°
30
45°
33°
1
46°
35°
2
45°
36°
3
43°
40°
4
48°
39°
5
48°
36°
6
47°
38°
7
48°
38°
8
47°
38°
9
48°
39°
10
48°
38°
11
46°
41°
12
48°
37°
13
49°
38°
14
47°
39°
15
46°
40°
16
48°
41°
17
49°
39°
18
49°
38°
19
48°
35°
20
48°
33°
21
43°
36°
22
42°
34°
23
45°
33°
24
42°
33°
25
41°
31°
26
41°
33°
27
42°
38°
28
43°
35°
29
46°
30°
30
45°
30°
31
41°
31°
1
42°
32°
2
42°
31°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Dereham
Dereham's December 2026 forecast shows daily high temperatures ranging from 41° to 49°, with overnight lows between 30° and 41°. The average high for December is 45° with an average low of 36°. 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 Dereham. See also: January | February | March.
