Converging boundaries on Monday produced thunderstorms that started early and stayed late. At 1:00 p.m., Chester, Allendale and Georgetown all noted a relative humidity value of 65 percent. The Beaufort Marine Corps Air Station warmed to 89 degrees. At around 4:00 p.m., one-inch diameter hail fell over parts of Chester County and the northern end of Lake Wateree. Larger, golf ball-sized hail was reported at 9:20 p.m. within Edgefield County. Rainfall measurements taken on Tuesday morning included 1.74 inches at Greenwood, 1.52 inches in Chester and 1.43 inches in Johnston. The USGS gage at the York County AP three-day running total reached 5.95 inches. Just after 6:00 p.m., a hail path from Aiken into Lexington County left stones ranging from 0.75 to 1.00 inch in diameter. The Charleston AP recorded a thunderstorm wind gust of 50 mph at 10:09 p.m. Overnight rains totaled 1.59 inches at the N Myrtle Beach AP. Cooler, drier air moved southward on Wednesday, affecting the Upstate, Piedmont and Midlands. At 2:00 p.m., Anderson and Rock Hill reported 69 degrees while Georgetown and Charleston observed 79 degrees. Thursday was quite cool and breezy. The sunrise temperature at Saluda, Kingstree and Summerville dropped to 50 degrees. At 11:00 a.m., Shaw AFB reported northwest winds gusting at 31 mph. There were reports of small hail on Thursday afternoon mixing in with scattered showers as the freezing level lowered to near 5,000 feet above ground. Lancaster, Fairfield, Kershaw, Edgefield, and Sumter counties reported hail episodes. Winnsboro measured one of the heavier rain amounts with 0.67 inches. On Friday morning, Barnwell recorded a cold 44 degrees. Hartsville and Holly Hill reported 46 degrees. Afternoon temperatures eased to a mild 73 degrees at Florence and Lake City. More chilly weather on Saturday morning was observed at Cedar Creek with a minimum temperature of 41 degrees before fast warming sent their afternoon temperature to 79 degrees. West winds at Clemson-Oconee AP, Columbia Metro AP and Charleston AP gusted to 29 mph. The Greenville Downtown AP warmed to 84 degrees at 5:53 p.m. Sunny skies on Sunday moved the afternoon temperatures into the 90's. The thermometer indicated 92 degrees for Barnwell's and Charleston's Sunday high temperature. Orangeburg and Summerville reported 91 degrees and 90 degrees was the high for Manning and Allendale.
The highest official temperature reported was 93 degrees at Georgetown AP, Jamestown and Hilton Head Island on May 8. The lowest official temperature reported was 38 degrees at Sassafras Mt. on May 5. The heaviest official 24-hour rainfall reported was 2.10 inches at Shaw AFB in Sumter ending at 7:00 a.m. on May 3. The state average rainfall for the seven-day period was 0.8 inches. The state average temperature for the seven-day period was one degree above the long-term average.
| Weekly | Jan 1 | Departure | |
|---|---|---|---|
| Anderson AP | 0.09 | 10.49 | -5.5 |
| Greer AP | 0.22 | 14.06 | -2.6 |
| Charlotte, NC AP | 1.70 | 11.79 | -2.8 |
| Columbia Metro AP | 0.84 | 12.28 | -2.0 |
| Orangeburg AP | 0.11 | 11.09 | -4.0 |
| Augusta, GA Bush AP | 1.16 | 14.18 | -1.3 |
| Florence AP | 0.98 | 16.02 | 3.2 |
| N Myrtle Beach AP | 1.72 | 12.95 | -1.9 |
| Charleston AP | 0.44 | 14.56 | 0.5 |
| Savannah, GA AP | 1.13 | 14.81 | 0.9 |
Weekly rainfall totals ending midnight Sunday.
4-inch depth soil temperature: Clinton 70 degrees. Columbia 75 degrees. Charleston NA.
South Carolina river stages were near normal. The Charleston Harbor Ravenel Bridge reported a water temperature of 73 degrees. Springmaid Pier at Myrtle Beach reported a surf water temperature of 70 degrees.
