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Climate
Statistics · City
Normal high in December in Hartsville
1991–2020 · 1 data point
Updated Nov 12, 2026
Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1991–2020
Weather through the year long-term average 1991–2020 · Darlington weather station, 20 km away
57°
34°
Jan
61°
36°
Feb
68°
42°
Mar
77°
50°
Apr
84°
60°
May
89°
68°
Jun
92°
71°
Jul
90°
70°
Aug
85°
64°
Sep
76°
53°
Oct
67°
42°
Nov
59°
36°
Dec
3.6
3.3
3.7
3.0
3.9
4.7
5.3
5.3
5.2
3.6
3.2
3.5
High and low, °F
Precipitation, inches
Source: NOAA National Centers for Environmental Information — GHCN-Daily, 1991–2020
What it means
The typical daytime high in December.
How it is calculated
Average daily maximum in December at the nearest weather station with a long record: 1991–2020, or the latest ten years.
Climate
Hartsville in numbers
Average daily high
75 °F
1991–2020
Average daily low
52 °F
1991–2020
Normal annual rainfall
48.1 in
1991–2020
Hot days (30 °C / 86 °F or more)
114
1991–2020
Rainy days
90
1991–2020
Average annual temperature
63 °F
2025
Annual precipitation
45.7 in
2024
CO₂ emissions per person
13.6
2024 · United States