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