S
M
T
W
T
F
S
29
46°
40°
30
52°
35°
1
56°
30°
2
46°
39°
3
49°
34°
4
55°
32°
5
47°
34°
6
50°
42°
7
53°
38°
8
56°
33°
9
53°
34°
10
45°
37°
11
48°
38°
12
52°
37°
13
52°
36°
14
47°
37°
15
49°
36°
16
54°
31°
17
54°
29°
18
44°
28°
19
46°
28°
20
44°
35°
21
46°
36°
22
52°
35°
23
50°
37°
24
51°
35°
25
50°
31°
26
47°
26°
27
41°
28°
28
42°
30°
29
45°
26°
30
43°
25°
31
42°
35°
1
50°
19°
2
53°
16°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Delaware City
Delaware City's December 2026 forecast shows daily high temperatures ranging from 41° to 56°, with overnight lows between 16° and 42°. The average high for December is 49° with an average low of 33°. 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 Delaware City. See also: January | February | March.
