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Monthly
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Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sumter, SC
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December
Average Temperature
High
15°
Feels 15
Low
4°
Feels 3
Average Precipitation
8 Days
Rain amount
67.1mm
Snow amount
0.1cm
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Daily Historical Averages
December 2025
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
24°
25
23°
26
20°
27
24°
28
19°
29
19°
30
9°
31
12°
Forecast
Wednesday, December 24, 2025
Day
24°
Feels 24
Wind
14 km/h W
Gust
21 km/h
Humidity
46%
P.O.P
20%
Night
12°
Feels 11
Wind
10 km/h S
Gust
15 km/h
Humidity
93%
P.O.P
30%
Historical Averages
Dec 24
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.