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Rock Hill December Weather

Averages and records for weather in Rock Hill, South Carolina in the month of December.

Typical Rock Hill December Weather 1991–2020
Average daily high	55.4 °F
Average daily low	35.8 °F
Average monthly precipitation	3.3 inches
Average monthly snow	0.2 inches
Daily chance of precipitation	29.5%
Daily chance of snow	0.37%

Rock Hill December Weather Records 1899–2024
Highest temperature	81 °F	December 20, 1931
Lowest temperature	2 °F	December 13, 1962
Highest daily low	68 °F	December 2, 1991
Lowest daily high	19 °F	December 23, 1989
Hottest average high temperature	67.0 °F	1956
Coldest average high temperature	42.7 °F	1917
Most daily precipitation	4.6 inches	December 4, 1931
Most monthly precipitation	11.1 inches	1931
Most daily snow	11.0 inches	December 29, 1935
Most monthly snow	13.0 inches	1935

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
December 1	59.4	38.2	76	14
December 2	59.1	38.0	75	17
December 3	58.9	37.9	76	17
December 4	58.6	37.7	78	17
December 5	58.3	37.4	76	18
December 6	58.0	37.2	78	21
December 7	57.7	37.0	78	12
December 8	57.5	36.9	78	17
December 9	57.3	36.7	78	17
December 10	57.1	36.7	80	14
December 11	56.8	36.5	79	15
December 12	56.5	36.3	79	9
December 13	56.3	36.1	76	2
December 14	56.0	35.9	76	10
December 15	55.9	35.8	75	15
December 16	55.6	35.6	76	12
December 17	55.4	35.6	74	11
December 18	55.2	35.5	77	11
December 19	54.9	35.4	76	13
December 20	54.7	35.3	81	11
December 21	54.6	35.3	73	10
December 22	54.6	35.2	72	10
December 23	54.5	35.2	74	8
December 24	54.5	35.0	73	8
December 25	54.3	34.9	78	3
December 26	54.2	34.8	75	4
December 27	54.2	34.8	76	11
December 28	54.2	34.8	74	7
December 29	54.2	34.7	74	11
December 30	54.3	34.8	74	3
December 31	54.2	34.7	71	9

Weather Station Details

Years	Station	Coordinates
1899–2024	Winthrop University	location