<P> South Carolina has a humid subtropical climate (Köppen climate classification Cfa), although high elevation areas in the "Upstate" area have less subtropical characteristics than areas on the Atlantic coastline . In the summer, South Carolina is hot and humid with temperatures during the day averaging near 90 ° F (32 ° C) across most of the state with overnight lows near 70 ° F (21 ° C). Winter temperatures are much less uniform . Coastal areas of the state have very mild winters with high temperatures averaging about 60 ° F (16 ° C) and overnight lows close to 38 ° F (3 ° C). Further inland in the Piedmont, temperatures average between 50 ° F (10 ° C) during the day and 32 ° F (0 ° C) at night . </P> <Table> <Tr> <Th_colspan="16"> (show) Monthly normals and extremes for various South Carolina cities </Th> <Td> Greenville Columbia Charleston </Td> </Tr> <Tr> <Th> Greenville <Table> <Tr> <Th_colspan="14"> (hide) Climate data for Greenville, South Carolina (Greenville--Spartanburg Int'l), 1981--2010 normals, extremes 1884--present </Th> </Tr> <Tr> <Th> Month </Th> <Th> Jan </Th> <Th> Feb </Th> <Th> Mar </Th> <Th> Apr </Th> <Th> May </Th> <Th> Jun </Th> <Th> Jul </Th> <Th> Aug </Th> <Th> Sep </Th> <Th> Oct </Th> <Th> Nov </Th> <Th> Dec </Th> <Th> Year </Th> </Tr> <Tr> <Th> Record high ° F (° C) </Th> <Td> 82 (28) </Td> <Td> 81 (27) </Td> <Td> 91 (33) </Td> <Td> 94 (34) </Td> <Td> 100 (38) </Td> <Td> 105 (41) </Td> <Td> 107 (42) </Td> <Td> 105 (41) </Td> <Td> 101 (38) </Td> <Td> 97 (36) </Td> <Td> 86 (30) </Td> <Td> 79 (26) </Td> <Td> 107 (42) </Td> </Tr> <Tr> <Th> Mean maximum ° F (° C) </Th> <Td> 69.4 (20.8) </Td> <Td> 72.5 (22.5) </Td> <Td> 80.8 (27.1) </Td> <Td> 86.0 (30) </Td> <Td> 90.2 (32.3) </Td> <Td> 95.1 (35.1) </Td> <Td> 97.3 (36.3) </Td> <Td> 95.9 (35.5) </Td> <Td> 91.1 (32.8) </Td> <Td> 84.4 (29.1) </Td> <Td> 77.1 (25.1) </Td> <Td> 69.5 (20.8) </Td> <Td> 98.6 (37) </Td> </Tr> <Tr> <Th> Average high ° F (° C) </Th> <Td> 52.4 (11.3) </Td> <Td> 56.6 (13.7) </Td> <Td> 64.5 (18.1) </Td> <Td> 72.8 (22.7) </Td> <Td> 80.2 (26.8) </Td> <Td> 87.5 (30.8) </Td> <Td> 90.3 (32.4) </Td> <Td> 88.6 (31.4) </Td> <Td> 82.2 (27.9) </Td> <Td> 72.8 (22.7) </Td> <Td> 63.5 (17.5) </Td> <Td> 54.1 (12.3) </Td> <Td> 72.1 (22.3) </Td> </Tr> <Tr> <Th> Average low ° F (° C) </Th> <Td> 32.0 (0) </Td> <Td> 34.9 (1.6) </Td> <Td> 41.2 (5.1) </Td> <Td> 48.3 (9.1) </Td> <Td> 57.2 (14) </Td> <Td> 65.8 (18.8) </Td> <Td> 69.4 (20.8) </Td> <Td> 68.7 (20.4) </Td> <Td> 61.8 (16.6) </Td> <Td> 50.4 (10.2) </Td> <Td> 41.3 (5.2) </Td> <Td> 34.0 (1.1) </Td> <Td> 50.4 (10.2) </Td> </Tr> <Tr> <Th> Mean minimum ° F (° C) </Th> <Td> 14.6 (− 9.7) </Td> <Td> 19.0 (− 7.2) </Td> <Td> 24.2 (− 4.3) </Td> <Td> 32.6 (0.3) </Td> <Td> 42.7 (5.9) </Td> <Td> 55.0 (12.8) </Td> <Td> 61.7 (16.5) </Td> <Td> 60.7 (15.9) </Td> <Td> 47.9 (8.8) </Td> <Td> 34.1 (1.2) </Td> <Td> 26.0 (− 3.3) </Td> <Td> 18.1 (− 7.7) </Td> <Td> 11.8 (− 11.2) </Td> </Tr> <Tr> <Th> Record low ° F (° C) </Th> <Td> − 6 (− 21) </Td> <Td> − 5 (− 21) </Td> <Td> 11 (− 12) </Td> <Td> 22 (− 6) </Td> <Td> 27 (− 3) </Td> <Td> 40 (4) </Td> <Td> 53 (12) </Td> <Td> 50 (10) </Td> <Td> 32 (0) </Td> <Td> 25 (− 4) </Td> <Td> 11 (− 12) </Td> <Td> (− 16) </Td> <Td> − 6 (− 21) </Td> </Tr> <Tr> <Th> Average precipitation inches (mm) </Th> <Td> 3.82 (97) </Td> <Td> 3.97 (100.8) </Td> <Td> 4.52 (114.8) </Td> <Td> 3.36 (85.3) </Td> <Td> 3.76 (95.5) </Td> <Td> 3.80 (96.5) </Td> <Td> 4.80 (121.9) </Td> <Td> 4.48 (113.8) </Td> <Td> 3.43 (87.1) </Td> <Td> 3.44 (87.4) </Td> <Td> 3.70 (94) </Td> <Td> 4.11 (104.4) </Td> <Td> 47.19 (1,198.6) </Td> </Tr> <Tr> <Th> Average snowfall inches (cm) </Th> <Td> 2.3 (5.8) </Td> <Td> 1.0 (2.5) </Td> <Td> 0.9 (2.3) </Td> <Td> trace </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0.1 (0.3) </Td> <Td> 0.4 (1) </Td> <Td> 4.7 (11.9) </Td> </Tr> <Tr> <Th> Average precipitation days (≥ 0.01 in) </Th> <Td> 10.2 </Td> <Td> 9.2 </Td> <Td> 9.6 </Td> <Td> 9.0 </Td> <Td> 9.7 </Td> <Td> 10.4 </Td> <Td> 11.7 </Td> <Td> 10.4 </Td> <Td> 8.1 </Td> <Td> 7.2 </Td> <Td> 8.9 </Td> <Td> 9.8 </Td> <Td> 114.2 </Td> </Tr> <Tr> <Th> Average snowy days (≥ 0.1 in) </Th> <Td> </Td> <Td> 0.7 </Td> <Td> 0.3 </Td> <Td> 0.1 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0.1 </Td> <Td> 0.4 </Td> <Td> 2.8 </Td> </Tr> <Tr> <Th> Average relative humidity (%) </Th> <Td> 65.8 </Td> <Td> 62.6 </Td> <Td> 62.1 </Td> <Td> 60.7 </Td> <Td> 68.5 </Td> <Td> 70.5 </Td> <Td> 74.0 </Td> <Td> 75.6 </Td> <Td> 75.8 </Td> <Td> 70.9 </Td> <Td> 68.2 </Td> <Td> 67.7 </Td> <Td> 68.5 </Td> </Tr> <Tr> <Th> Mean monthly sunshine hours </Th> <Td> 176.6 </Td> <Td> 182.7 </Td> <Td> 236.2 </Td> <Td> 264.7 </Td> <Td> 269.2 </Td> <Td> 270.8 </Td> <Td> 267.8 </Td> <Td> 253.9 </Td> <Td> 229.2 </Td> <Td> 235.2 </Td> <Td> 184.3 </Td> <Td> 169.4 </Td> <Td> 2,740 </Td> </Tr> <Tr> <Th> Percent possible sunshine </Th> <Td> 56 </Td> <Td> 60 </Td> <Td> 64 </Td> <Td> 68 </Td> <Td> 62 </Td> <Td> 62 </Td> <Td> 61 </Td> <Td> 61 </Td> <Td> 62 </Td> <Td> 67 </Td> <Td> 59 </Td> <Td> 55 </Td> <Td> 62 </Td> </Tr> <Tr> <Td_colspan="14"> Source: NOAA (relative humidity 1962--1990, sun 1961--1990) </Td> </Tr> </Table> </Th> </Tr> <Tr> <Th> Columbia <Table> <Tr> <Th_colspan="14"> (hide) Climate data for Columbia, South Carolina (Columbia Airport), 1981--2010 normals, extremes 1887--present </Th> </Tr> <Tr> <Th> Month </Th> <Th> Jan </Th> <Th> Feb </Th> <Th> Mar </Th> <Th> Apr </Th> <Th> May </Th> <Th> Jun </Th> <Th> Jul </Th> <Th> Aug </Th> <Th> Sep </Th> <Th> Oct </Th> <Th> Nov </Th> <Th> Dec </Th> <Th> Year </Th> </Tr> <Tr> <Th> Record high ° F (° C) </Th> <Td> 84 (29) </Td> <Td> 84 (29) </Td> <Td> 93 (34) </Td> <Td> 96 (36) </Td> <Td> 101 (38) </Td> <Td> 109 (43) </Td> <Td> 107 (42) </Td> <Td> 107 (42) </Td> <Td> 106 (41) </Td> <Td> 101 (38) </Td> <Td> 90 (32) </Td> <Td> 83 (28) </Td> <Td> 109 (43) </Td> </Tr> <Tr> <Th> Mean maximum ° F (° C) </Th> <Td> 73.7 (23.2) </Td> <Td> 77.6 (25.3) </Td> <Td> 83.9 (28.8) </Td> <Td> 89.3 (31.8) </Td> <Td> 94.0 (34.4) </Td> <Td> 98.5 (36.9) </Td> <Td> 100.2 (37.9) </Td> <Td> 98.9 (37.2) </Td> <Td> 94.5 (34.7) </Td> <Td> 88.2 (31.2) </Td> <Td> 80.9 (27.2) </Td> <Td> 75.3 (24.1) </Td> <Td> 101.6 (38.7) </Td> </Tr> <Tr> <Th> Average high ° F (° C) </Th> <Td> 56.0 (13.3) </Td> <Td> 60.3 (15.7) </Td> <Td> 68.2 (20.1) </Td> <Td> 76.3 (24.6) </Td> <Td> 83.8 (28.8) </Td> <Td> 90.0 (32.2) </Td> <Td> 92.7 (33.7) </Td> <Td> 90.7 (32.6) </Td> <Td> 85.2 (29.6) </Td> <Td> 76.1 (24.5) </Td> <Td> 67.3 (19.6) </Td> <Td> 58.2 (14.6) </Td> <Td> 75.4 (24.1) </Td> </Tr> <Tr> <Th> Average low ° F (° C) </Th> <Td> 33.7 (0.9) </Td> <Td> 36.8 (2.7) </Td> <Td> 43.0 (6.1) </Td> <Td> 50.4 (10.2) </Td> <Td> 59.5 (15.3) </Td> <Td> 68.2 (20.1) </Td> <Td> 71.6 (22) </Td> <Td> 71.0 (21.7) </Td> <Td> 64.2 (17.9) </Td> <Td> 52.1 (11.2) </Td> <Td> 42.3 (5.7) </Td> <Td> 35.3 (1.8) </Td> <Td> 52.3 (11.3) </Td> </Tr> <Tr> <Th> Mean minimum ° F (° C) </Th> <Td> 16.4 (− 8.7) </Td> <Td> 20.6 (− 6.3) </Td> <Td> 25.5 (− 3.6) </Td> <Td> 33.2 (0.7) </Td> <Td> 44.1 (6.7) </Td> <Td> 56.6 (13.7) </Td> <Td> 63.5 (17.5) </Td> <Td> 62.0 (16.7) </Td> <Td> 49.0 (9.4) </Td> <Td> 34.4 (1.3) </Td> <Td> 26.2 (− 3.2) </Td> <Td> 19.1 (− 7.2) </Td> <Td> 14.7 (− 9.6) </Td> </Tr> <Tr> <Th> Record low ° F (° C) </Th> <Td> − 1 (− 18) </Td> <Td> − 2 (− 19) </Td> <Td> (− 16) </Td> <Td> 26 (− 3) </Td> <Td> 34 (1) </Td> <Td> 44 (7) </Td> <Td> 54 (12) </Td> <Td> 53 (12) </Td> <Td> 40 (4) </Td> <Td> 23 (− 5) </Td> <Td> 12 (− 11) </Td> <Td> (− 16) </Td> <Td> − 2 (− 19) </Td> </Tr> <Tr> <Th> Average precipitation inches (mm) </Th> <Td> 3.58 (90.9) </Td> <Td> 3.61 (91.7) </Td> <Td> 3.73 (94.7) </Td> <Td> 2.62 (66.5) </Td> <Td> 2.97 (75.4) </Td> <Td> 4.69 (119.1) </Td> <Td> 5.46 (138.7) </Td> <Td> 5.26 (133.6) </Td> <Td> 3.54 (89.9) </Td> <Td> 3.17 (80.5) </Td> <Td> 2.74 (69.6) </Td> <Td> 3.22 (81.8) </Td> <Td> 44.59 (1,132.6) </Td> </Tr> <Tr> <Th> Average snowfall inches (cm) </Th> <Td> 0.8 (2) </Td> <Td> 0.5 (1.3) </Td> <Td> 0.1 (0.3) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0.1 (0.3) </Td> <Td> 1.5 (3.8) </Td> </Tr> <Tr> <Th> Average precipitation days (≥ 0.01 in) </Th> <Td> 9.9 </Td> <Td> 9.1 </Td> <Td> 8.6 </Td> <Td> 8.0 </Td> <Td> 7.7 </Td> <Td> 10.5 </Td> <Td> 11.8 </Td> <Td> 10.5 </Td> <Td> 7.3 </Td> <Td> 7.0 </Td> <Td> 7.3 </Td> <Td> 9.0 </Td> <Td> 106.7 </Td> </Tr> <Tr> <Th> Average snowy days (≥ 0.1 in) </Th> <Td> 0.5 </Td> <Td> 0.3 </Td> <Td> 0.1 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0.1 </Td> <Td> 1.0 </Td> </Tr> <Tr> <Th> Average relative humidity (%) </Th> <Td> 69.2 </Td> <Td> 65.8 </Td> <Td> 64.6 </Td> <Td> 62.1 </Td> <Td> 68.2 </Td> <Td> 70.8 </Td> <Td> 73.4 </Td> <Td> 76.5 </Td> <Td> 75.9 </Td> <Td> 73.0 </Td> <Td> 71.6 </Td> <Td> 70.7 </Td> <Td> 70.2 </Td> </Tr> <Tr> <Th> Mean monthly sunshine hours </Th> <Td> 172.7 </Td> <Td> 180.7 </Td> <Td> 237.3 </Td> <Td> 269.6 </Td> <Td> 292.9 </Td> <Td> 280.0 </Td> <Td> 286.0 </Td> <Td> 263.3 </Td> <Td> 239.8 </Td> <Td> 235.0 </Td> <Td> 193.8 </Td> <Td> 175.0 </Td> <Td> 2,826.1 </Td> </Tr> <Tr> <Th> Percent possible sunshine </Th> <Td> 55 </Td> <Td> 59 </Td> <Td> 64 </Td> <Td> 69 </Td> <Td> 68 </Td> <Td> 65 </Td> <Td> 65 </Td> <Td> 63 </Td> <Td> 64 </Td> <Td> 67 </Td> <Td> 62 </Td> <Td> 57 </Td> <Td> 64 </Td> </Tr> <Tr> <Td_colspan="14"> Source: NOAA (relative humidity and sun 1961 − 1990) </Td> </Tr> </Table> </Th> </Tr> <Tr> <Th> Charleston <Table> <Tr> <Th_colspan="14"> (hide) Climate data for Charleston Int'l, South Carolina (1981--2010 normals, extremes 1938--present) </Th> </Tr> <Tr> <Th> Month </Th> <Th> Jan </Th> <Th> Feb </Th> <Th> Mar </Th> <Th> Apr </Th> <Th> May </Th> <Th> Jun </Th> <Th> Jul </Th> <Th> Aug </Th> <Th> Sep </Th> <Th> Oct </Th> <Th> Nov </Th> <Th> Dec </Th> <Th> Year </Th> </Tr> <Tr> <Th> Record high ° F (° C) </Th> <Td> 83 (28) </Td> <Td> 87 (31) </Td> <Td> 90 (32) </Td> <Td> 95 (35) </Td> <Td> 99 (37) </Td> <Td> 103 (39) </Td> <Td> 104 (40) </Td> <Td> 105 (41) </Td> <Td> 99 (37) </Td> <Td> 94 (34) </Td> <Td> 88 (31) </Td> <Td> 83 (28) </Td> <Td> 105 (41) </Td> </Tr> <Tr> <Th> Mean maximum ° F (° C) </Th> <Td> 75.3 (24.1) </Td> <Td> 78.1 (25.6) </Td> <Td> 83.5 (28.6) </Td> <Td> 88.5 (31.4) </Td> <Td> 92.7 (33.7) </Td> <Td> 96.8 (36) </Td> <Td> 98.0 (36.7) </Td> <Td> 96.5 (35.8) </Td> <Td> 92.6 (33.7) </Td> <Td> 87.1 (30.6) </Td> <Td> 81.9 (27.7) </Td> <Td> 76.8 (24.9) </Td> <Td> 99.2 (37.3) </Td> </Tr> <Tr> <Th> Average high ° F (° C) </Th> <Td> 59.0 (15) </Td> <Td> 62.8 (17.1) </Td> <Td> 69.6 (20.9) </Td> <Td> 76.4 (24.7) </Td> <Td> 83.2 (28.4) </Td> <Td> 88.4 (31.3) </Td> <Td> 91.1 (32.8) </Td> <Td> 89.5 (31.9) </Td> <Td> 84.8 (29.3) </Td> <Td> 77.1 (25.1) </Td> <Td> 69.8 (21) </Td> <Td> 61.6 (16.4) </Td> <Td> 76.1 (24.5) </Td> </Tr> <Tr> <Th> Average low ° F (° C) </Th> <Td> 37.5 (3.1) </Td> <Td> 40.6 (4.8) </Td> <Td> 46.7 (8.2) </Td> <Td> 53.3 (11.8) </Td> <Td> 61.8 (16.6) </Td> <Td> 69.6 (20.9) </Td> <Td> 73.0 (22.8) </Td> <Td> 72.3 (22.4) </Td> <Td> 67.2 (19.6) </Td> <Td> 56.8 (13.8) </Td> <Td> 47.5 (8.6) </Td> <Td> 40.1 (4.5) </Td> <Td> 55.5 (13.1) </Td> </Tr> <Tr> <Th> Mean minimum ° F (° C) </Th> <Td> 21.4 (− 5.9) </Td> <Td> 25.5 (− 3.6) </Td> <Td> 30.4 (− 0.9) </Td> <Td> 38.6 (3.7) </Td> <Td> 49.5 (9.7) </Td> <Td> 61.1 (16.2) </Td> <Td> 67.5 (19.7) </Td> <Td> 66.0 (18.9) </Td> <Td> 55.6 (13.1) </Td> <Td> 41.0 (5) </Td> <Td> 32.6 (0.3) </Td> <Td> 24.0 (− 4.4) </Td> <Td> 18.8 (− 7.3) </Td> </Tr> <Tr> <Th> Record low ° F (° C) </Th> <Td> 6 (− 14) </Td> <Td> 12 (− 11) </Td> <Td> 15 (− 9) </Td> <Td> 29 (− 2) </Td> <Td> 36 (2) </Td> <Td> 50 (10) </Td> <Td> 58 (14) </Td> <Td> 56 (13) </Td> <Td> 42 (6) </Td> <Td> 27 (− 3) </Td> <Td> 15 (− 9) </Td> <Td> 8 (− 13) </Td> <Td> 6 (− 14) </Td> </Tr> <Tr> <Th> Average precipitation inches (mm) </Th> <Td> 3.71 (94.2) </Td> <Td> 2.96 (75.2) </Td> <Td> 3.71 (94.2) </Td> <Td> 2.91 (73.9) </Td> <Td> 3.02 (76.7) </Td> <Td> 5.65 (143.5) </Td> <Td> 6.53 (165.9) </Td> <Td> 7.15 (181.6) </Td> <Td> 6.10 (154.9) </Td> <Td> 3.75 (95.3) </Td> <Td> 2.43 (61.7) </Td> <Td> 3.11 (79) </Td> <Td> 51.03 (1,296.2) </Td> </Tr> <Tr> <Th> Average snowfall inches (cm) </Th> <Td> trace </Td> <Td> 0.2 (0.5) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0.3 (0.8) </Td> <Td> 0.5 (1.3) </Td> </Tr> <Tr> <Th> Average precipitation days (≥ 0.01 in) </Th> <Td> 9.6 </Td> <Td> 8.6 </Td> <Td> 7.9 </Td> <Td> 7.7 </Td> <Td> 7.8 </Td> <Td> 11.9 </Td> <Td> 13.0 </Td> <Td> 13.2 </Td> <Td> 10.0 </Td> <Td> 7.3 </Td> <Td> 7.0 </Td> <Td> 8.7 </Td> <Td> 112.7 </Td> </Tr> <Tr> <Th> Average snowy days (≥ 0.1 in) </Th> <Td> 0.1 </Td> <Td> 0.2 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0.2 </Td> <Td> 0.5 </Td> </Tr> <Tr> <Th> Average relative humidity (%) </Th> <Td> 69.8 </Td> <Td> 67.4 </Td> <Td> 68.1 </Td> <Td> 67.5 </Td> <Td> 72.5 </Td> <Td> 75.1 </Td> <Td> 76.6 </Td> <Td> 78.9 </Td> <Td> 78.2 </Td> <Td> 74.1 </Td> <Td> 72.7 </Td> <Td> 71.6 </Td> <Td> 72.7 </Td> </Tr> <Tr> <Th> Mean monthly sunshine hours </Th> <Td> 179.3 </Td> <Td> 186.7 </Td> <Td> 243.9 </Td> <Td> 275.1 </Td> <Td> 294.8 </Td> <Td> 279.5 </Td> <Td> 287.8 </Td> <Td> 256.7 </Td> <Td> 219.7 </Td> <Td> 224.5 </Td> <Td> 189.5 </Td> <Td> 171.3 </Td> <Td> 2,808.8 </Td> </Tr> <Tr> <Th> Percent possible sunshine </Th> <Td> 56 </Td> <Td> 61 </Td> <Td> 66 </Td> <Td> 71 </Td> <Td> 69 </Td> <Td> 65 </Td> <Td> 66 </Td> <Td> 62 </Td> <Td> 59 </Td> <Td> 64 </Td> <Td> 60 </Td> <Td> 55 </Td> <Td> 63 </Td> </Tr> <Tr> <Td_colspan="14"> Source: NOAA (relative humidity and sun 1961--1990) </Td> </Tr> </Table> <Table> <Tr> <Th_colspan="14"> (hide) Climate data for Charleston, South Carolina (Downtown), 1981--2010 normals, extremes 1893--present </Th> </Tr> <Tr> <Th> Month </Th> <Th> Jan </Th> <Th> Feb </Th> <Th> Mar </Th> <Th> Apr </Th> <Th> May </Th> <Th> Jun </Th> <Th> Jul </Th> <Th> Aug </Th> <Th> Sep </Th> <Th> Oct </Th> <Th> Nov </Th> <Th> Dec </Th> <Th> Year </Th> </Tr> <Tr> <Th> Record high ° F (° C) </Th> <Td> 82 (28) </Td> <Td> 83 (28) </Td> <Td> 94 (34) </Td> <Td> 94 (34) </Td> <Td> 99 (37) </Td> <Td> 104 (40) </Td> <Td> 103 (39) </Td> <Td> 103 (39) </Td> <Td> 100 (38) </Td> <Td> 95 (35) </Td> <Td> 87 (31) </Td> <Td> 81 (27) </Td> <Td> 104 (40) </Td> </Tr> <Tr> <Th> Mean maximum ° F (° C) </Th> <Td> 71.3 (21.8) </Td> <Td> 74.6 (23.7) </Td> <Td> 79.7 (26.5) </Td> <Td> 84.6 (29.2) </Td> <Td> 90.0 (32.2) </Td> <Td> 94.0 (34.4) </Td> <Td> 96.2 (35.7) </Td> <Td> 94.2 (34.6) </Td> <Td> 91.2 (32.9) </Td> <Td> 85.2 (29.6) </Td> <Td> 79.0 (26.1) </Td> <Td> 73.9 (23.3) </Td> <Td> 97.4 (36.3) </Td> </Tr> <Tr> <Th> Average high ° F (° C) </Th> <Td> 56.7 (13.7) </Td> <Td> 59.6 (15.3) </Td> <Td> 65.0 (18.3) </Td> <Td> 72.0 (22.2) </Td> <Td> 78.7 (25.9) </Td> <Td> 84.5 (29.2) </Td> <Td> 87.6 (30.9) </Td> <Td> 86.4 (30.2) </Td> <Td> 82.0 (27.8) </Td> <Td> 74.6 (23.7) </Td> <Td> 67.3 (19.6) </Td> <Td> 59.5 (15.3) </Td> <Td> 72.8 (22.7) </Td> </Tr> <Tr> <Th> Average low ° F (° C) </Th> <Td> 42.8 (6) </Td> <Td> 45.5 (7.5) </Td> <Td> 51.6 (10.9) </Td> <Td> 58.8 (14.9) </Td> <Td> 67.1 (19.5) </Td> <Td> 74.0 (23.3) </Td> <Td> 76.9 (24.9) </Td> <Td> 76.1 (24.5) </Td> <Td> 71.8 (22.1) </Td> <Td> 62.5 (16.9) </Td> <Td> 53.6 (12) </Td> <Td> 45.6 (7.6) </Td> <Td> 60.5 (15.8) </Td> </Tr> <Tr> <Th> Mean minimum ° F (° C) </Th> <Td> 27.5 (− 2.5) </Td> <Td> 31.6 (− 0.2) </Td> <Td> 36.4 (2.4) </Td> <Td> 44.8 (7.1) </Td> <Td> 55.6 (13.1) </Td> <Td> 66.5 (19.2) </Td> <Td> 71.0 (21.7) </Td> <Td> 69.8 (21) </Td> <Td> 61.6 (16.4) </Td> <Td> 48.1 (8.9) </Td> <Td> 39.1 (3.9) </Td> <Td> 30.2 (− 1) </Td> <Td> 24.8 (− 4) </Td> </Tr> <Tr> <Th> Record low ° F (° C) </Th> <Td> 10 (− 12) </Td> <Td> 7 (− 14) </Td> <Td> 22 (− 6) </Td> <Td> 36 (2) </Td> <Td> 45 (7) </Td> <Td> 52 (11) </Td> <Td> 61 (16) </Td> <Td> 59 (15) </Td> <Td> 50 (10) </Td> <Td> 37 (3) </Td> <Td> 17 (− 8) </Td> <Td> 12 (− 11) </Td> <Td> 7 (− 14) </Td> </Tr> <Tr> <Th> Average precipitation inches (mm) </Th> <Td> 2.94 (74.7) </Td> <Td> 2.51 (63.8) </Td> <Td> 3.30 (83.8) </Td> <Td> 2.53 (64.3) </Td> <Td> 2.16 (54.9) </Td> <Td> 4.65 (118.1) </Td> <Td> 5.40 (137.2) </Td> <Td> 6.71 (170.4) </Td> <Td> 5.76 (146.3) </Td> <Td> 3.67 (93.2) </Td> <Td> 2.19 (55.6) </Td> <Td> 2.60 (66) </Td> <Td> 44.42 (1,128.3) </Td> </Tr> <Tr> <Th> Average precipitation days (≥ 0.01 in) </Th> <Td> 9.0 </Td> <Td> 8.0 </Td> <Td> 7.8 </Td> <Td> 6.9 </Td> <Td> 6.6 </Td> <Td> 10.0 </Td> <Td> 11.3 </Td> <Td> 11.3 </Td> <Td> 8.9 </Td> <Td> 6.6 </Td> <Td> 6.3 </Td> <Td> 8.6 </Td> <Td> 101.3 </Td> </Tr> <Tr> <Td_colspan="14"> Source: NOAA </Td> </Tr> </Table> </Th> </Tr> </Table> <Tr> <Th_colspan="16"> (show) Monthly normals and extremes for various South Carolina cities </Th> <Td> Greenville Columbia Charleston </Td> </Tr> <Tr> <Th> Greenville <Table> <Tr> <Th_colspan="14"> (hide) Climate data for Greenville, South Carolina (Greenville--Spartanburg Int'l), 1981--2010 normals, extremes 1884--present </Th> </Tr> <Tr> <Th> Month </Th> <Th> Jan </Th> <Th> Feb </Th> <Th> Mar </Th> <Th> Apr </Th> <Th> May </Th> <Th> Jun </Th> <Th> Jul </Th> <Th> Aug </Th> <Th> Sep </Th> <Th> Oct </Th> <Th> Nov </Th> <Th> Dec </Th> <Th> Year </Th> </Tr> <Tr> <Th> Record high ° F (° C) </Th> <Td> 82 (28) </Td> <Td> 81 (27) </Td> <Td> 91 (33) </Td> <Td> 94 (34) </Td> <Td> 100 (38) </Td> <Td> 105 (41) </Td> <Td> 107 (42) </Td> <Td> 105 (41) </Td> <Td> 101 (38) </Td> <Td> 97 (36) </Td> <Td> 86 (30) </Td> <Td> 79 (26) </Td> <Td> 107 (42) </Td> </Tr> <Tr> <Th> Mean maximum ° F (° C) </Th> <Td> 69.4 (20.8) </Td> <Td> 72.5 (22.5) </Td> <Td> 80.8 (27.1) </Td> <Td> 86.0 (30) </Td> <Td> 90.2 (32.3) </Td> <Td> 95.1 (35.1) </Td> <Td> 97.3 (36.3) </Td> <Td> 95.9 (35.5) </Td> <Td> 91.1 (32.8) </Td> <Td> 84.4 (29.1) </Td> <Td> 77.1 (25.1) </Td> <Td> 69.5 (20.8) </Td> <Td> 98.6 (37) </Td> </Tr> <Tr> <Th> Average high ° F (° C) </Th> <Td> 52.4 (11.3) </Td> <Td> 56.6 (13.7) </Td> <Td> 64.5 (18.1) </Td> <Td> 72.8 (22.7) </Td> <Td> 80.2 (26.8) </Td> <Td> 87.5 (30.8) </Td> <Td> 90.3 (32.4) </Td> <Td> 88.6 (31.4) </Td> <Td> 82.2 (27.9) </Td> <Td> 72.8 (22.7) </Td> <Td> 63.5 (17.5) </Td> <Td> 54.1 (12.3) </Td> <Td> 72.1 (22.3) </Td> </Tr> <Tr> <Th> Average low ° F (° C) </Th> <Td> 32.0 (0) </Td> <Td> 34.9 (1.6) </Td> <Td> 41.2 (5.1) </Td> <Td> 48.3 (9.1) </Td> <Td> 57.2 (14) </Td> <Td> 65.8 (18.8) </Td> <Td> 69.4 (20.8) </Td> <Td> 68.7 (20.4) </Td> <Td> 61.8 (16.6) </Td> <Td> 50.4 (10.2) </Td> <Td> 41.3 (5.2) </Td> <Td> 34.0 (1.1) </Td> <Td> 50.4 (10.2) </Td> </Tr> <Tr> <Th> Mean minimum ° F (° C) </Th> <Td> 14.6 (− 9.7) </Td> <Td> 19.0 (− 7.2) </Td> <Td> 24.2 (− 4.3) </Td> <Td> 32.6 (0.3) </Td> <Td> 42.7 (5.9) </Td> <Td> 55.0 (12.8) </Td> <Td> 61.7 (16.5) </Td> <Td> 60.7 (15.9) </Td> <Td> 47.9 (8.8) </Td> <Td> 34.1 (1.2) </Td> <Td> 26.0 (− 3.3) </Td> <Td> 18.1 (− 7.7) </Td> <Td> 11.8 (− 11.2) </Td> </Tr> <Tr> <Th> Record low ° F (° C) </Th> <Td> − 6 (− 21) </Td> <Td> − 5 (− 21) </Td> <Td> 11 (− 12) </Td> <Td> 22 (− 6) </Td> <Td> 27 (− 3) </Td> <Td> 40 (4) </Td> <Td> 53 (12) </Td> <Td> 50 (10) </Td> <Td> 32 (0) </Td> <Td> 25 (− 4) </Td> <Td> 11 (− 12) </Td> <Td> (− 16) </Td> <Td> − 6 (− 21) </Td> </Tr> <Tr> <Th> Average precipitation inches (mm) </Th> <Td> 3.82 (97) </Td> <Td> 3.97 (100.8) </Td> <Td> 4.52 (114.8) </Td> <Td> 3.36 (85.3) </Td> <Td> 3.76 (95.5) </Td> <Td> 3.80 (96.5) </Td> <Td> 4.80 (121.9) </Td> <Td> 4.48 (113.8) </Td> <Td> 3.43 (87.1) </Td> <Td> 3.44 (87.4) </Td> <Td> 3.70 (94) </Td> <Td> 4.11 (104.4) </Td> <Td> 47.19 (1,198.6) </Td> </Tr> <Tr> <Th> Average snowfall inches (cm) </Th> <Td> 2.3 (5.8) </Td> <Td> 1.0 (2.5) </Td> <Td> 0.9 (2.3) </Td> <Td> trace </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0 (0) </Td> <Td> 0.1 (0.3) </Td> <Td> 0.4 (1) </Td> <Td> 4.7 (11.9) </Td> </Tr> <Tr> <Th> Average precipitation days (≥ 0.01 in) </Th> <Td> 10.2 </Td> <Td> 9.2 </Td> <Td> 9.6 </Td> <Td> 9.0 </Td> <Td> 9.7 </Td> <Td> 10.4 </Td> <Td> 11.7 </Td> <Td> 10.4 </Td> <Td> 8.1 </Td> <Td> 7.2 </Td> <Td> 8.9 </Td> <Td> 9.8 </Td> <Td> 114.2 </Td> </Tr> <Tr> <Th> Average snowy days (≥ 0.1 in) </Th> <Td> </Td> <Td> 0.7 </Td> <Td> 0.3 </Td> <Td> 0.1 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0 </Td> <Td> 0.1 </Td> <Td> 0.4 </Td> <Td> 2.8 </Td> </Tr> <Tr> <Th> Average relative humidity (%) </Th> <Td> 65.8 </Td> <Td> 62.6 </Td> <Td> 62.1 </Td> <Td> 60.7 </Td> <Td> 68.5 </Td> <Td> 70.5 </Td> <Td> 74.0 </Td> <Td> 75.6 </Td> <Td> 75.8 </Td> <Td> 70.9 </Td> <Td> 68.2 </Td> <Td> 67.7 </Td> <Td> 68.5 </Td> </Tr> <Tr> <Th> Mean monthly sunshine hours </Th> <Td> 176.6 </Td> <Td> 182.7 </Td> <Td> 236.2 </Td> <Td> 264.7 </Td> <Td> 269.2 </Td> <Td> 270.8 </Td> <Td> 267.8 </Td> <Td> 253.9 </Td> <Td> 229.2 </Td> <Td> 235.2 </Td> <Td> 184.3 </Td> <Td> 169.4 </Td> <Td> 2,740 </Td> </Tr> <Tr> <Th> Percent possible sunshine </Th> <Td> 56 </Td> <Td> 60 </Td> <Td> 64 </Td> <Td> 68 </Td> <Td> 62 </Td> <Td> 62 </Td> <Td> 61 </Td> <Td> 61 </Td> <Td> 62 </Td> <Td> 67 </Td> <Td> 59 </Td> <Td> 55 </Td> <Td> 62 </Td> </Tr> <Tr> <Td_colspan="14"> Source: NOAA (relative humidity 1962--1990, sun 1961--1990) </Td> </Tr> </Table> </Th> </Tr>

When does it start snowing in south carolina