Summerville's Monday morning low temperature fell to 30 degrees. At Sassafras Mountain, the afternoon high temperature only reached 25 degrees. Tuesday morning arrived with the state's lowest temperatures since February 20, 2015. Fountain Inn, Whitmire and Cedar Creek awoke to 14 degrees. Edisto Beach State Park recorded 24 degrees. At noon, it was a freezing 32 degrees at Greenville-Spartanburg AP, Rock Hill AP, Aiken AP, Florence AP and Conway AP. Mullins reported a Tuesday high temperature of just 35 degrees. The minimum temperature at Moncks Corner dropped to 19 degrees on Wednesday morning. Light precipitation, in the form of snow, developed over the Upstate during the mid-afternoon hours. At 2:50 p.m., light snow was observed at Clemson University. Sleet fell further south and east into Lancaster, Chesterfield, Newberry, Saluda and Lexington counties. Table Rock's Thursday morning low temperature of 22 degrees came over a one-half-inch layer of snow. A Gulf State's cyclonic circulation began to affect South Carolina overnight into Friday. At 3:00 a.m., the Spartanburg Memorial AP scheduled observation included snow. Daylight revealed freezing rain from Rock Hill into Florence County and moderate snow falling across the Upstate's highest elevations. North-northeast winds at 6:54 a.m. gusted to 33 knots (38 mph) at Springmaid Pier. Early snowfall measurements included Landrum with 5.0 inches and 2.0 inches at Travelers Rest. At 10:05 a.m., Lancaster reported sleet and freezing rain accumulating on roadways. At 11:00 a.m., thunder was heard in Beaufort. Chesnee's snow had reached 7.0 inches. Just after sunset, Union reported sleet-covered streets and "many auto accidents." Instruments at N Myrtle Beach AP recorded a minimum barometric pressure value of 29.49 inches of mercury at 7:42 p.m. Lancaster's McWhirter Field AP noted "heavy snow" at 7:55 p.m. At midnight, 7.5 inches of snow had fallen at Inman. On Saturday morning, an NWS employee reported an overnight snowfall of 8 inches at Landrum. Tigerville's snowfall measured an even 7 inches. Snow showers on Saturday morning coated rooftops across the Midlands. At 8:00 a.m., flurries were observed at Clemson, Greensboro, Winnsboro and Charleston. At 8:57 a.m., light snow was observed on Lady's Island in Beaufort. Hilton Head Island only reached a high temperature of 37 degrees. Sunday arrived clear and cold. The Myrtle Beach Springmaid Pier surf water temperature at 5:42 a.m. of 47.8 degrees was the "lowest of the season." Johns Island recorded a Sunday low temperature 28 degrees that moved to an afternoon high 54 degrees.
The highest official temperature reported was 57 degrees at Jamestown, Charleston AP and the Beaufort Marine Corps Air Station on January 21. The lowest official temperature reported was 5 degrees at Sassafras Mountain on January 19. The heaviest official 24-hour rainfall reported was 1.46 inches at the Greenville-Spartanburg AP on January 22. The state average rainfall for the seven-day period was 1.1 inches. The state average temperature for the seven-day period was six degrees below the long-term average.
| Weekly | Jan 1 | Departure | |
|---|---|---|---|
| Anderson AP | 1.57 | 2.91 | 0.0 |
| Greer AP | 1.51 | 3.50 | 0.5 |
| Charlotte, NC AP | 0.84 | 2.23 | -0.4 |
| Columbia Metro AP | 0.71 | 1.79 | -1.0 |
| Orangeburg AP | 0.63 | 1.67 | -1.3 |
| Augusta, GA Bush AP | 0.60 | 1.49 | -1.5 |
| Florence AP | 1.11 | 1.92 | -0.6 |
| N Myrtle Beach AP | 0.52 | 1.83 | -0.9 |
| Charleston AP | 1.02 | 3.26 | 0.4 |
| Savannah, GA AP | 0.65 | 3.02 | 0.2 |
Weekly rainfall totals ending midnight Sunday.
4-inch depth soil temperature: Columbia 48 degrees, Charleston (NA).
South Carolina river stages were near normal. The Charleston Harbor Ravenel Bridge reported a water temperature of 50 degrees and Springmaid Pier at Myrtle Beach reported a surf water temperature of 48 degrees.
