Bennettsville reached the state's highest temperature on Monday at 95 degrees. Organized afternoon thunderstorms brought soaking rains to portions of the Upstate and eastward to the central coast. Measurements taken on Tuesday morning included 1.55 inches at Jocassee Dam, 0.75 inches at Calhoun Falls and a CoCoRaHS volunteer report of 2.80 inches at Kiawah Island. Sub-tropical air on Tuesday meant more humidity and thundershowers. At around 3:00 p.m., heavy rains fell on Charleston City and across the harbor into Mount Pleasant. The 2.51 inches on the Charleston peninsula caused street flooding and road closings. Bamberg reported a hot 95 degrees. On Wednesday, Shaw AFB in Sumter and the Walterboro AP reached 95 degrees. A National Weather Service employee in Charleston reported 3.18 inches of rain falling near Mt. Pleasant and another round of street and property flooding. Holly Hill's 1.57 inches was part of a two-day total of 4.22 inches. Bamberg and N Inlet each received 1.43 inches. The 95 degrees recorded at Johnston on Thursday was that location's thirty-ninth time either reaching or exceeding 95 degrees in 2015. Scattered thundershowers left 1.60 inches of rain at York, 1.38 inches at Manning and 1.23 inches at McColl. Summerville and Beaufort each noted 95 degrees for their maximum on Friday. Late afternoon downpours over Marion brought 2.19 inches of rain and 1.86 inches to nearby Crabtree Swamp. Saturday's high temperatures ranged from 88 degrees at Greenwood AP and Hartsville to 90 degrees at Florence and Kingstree. Overnight rains of 2.05 inches fell at Walhalla and 1.32 inches in Johnston. Roaming thundershowers on Sunday interrupted a partly sunny day with late afternoon temperatures in the middle to upper 80's. One intense thundershower at the USGS Black Creek gage near Chesterfield produced 1.07 inches of rain in 45 minutes. The state average temperature for the seven-day period was two degrees above the long-term average.
The highest official temperature reported was 96 degrees at Columbia Metro AP on August 20. The lowest official temperature reported was 61 degrees at Jocassee 8WNW on August 18. The heaviest official 24-hour rainfall reported was 3.42 inches at Sullivan's Island ending at 7:00 a.m. on August 19. The state average rainfall for the seven-day period was 1.1 inches.
| Weekly | Jan 1 | Departure | |
|---|---|---|---|
| Anderson AP | 1.73 | 25.22 | -3.3 |
| Greer AP | 1.12 | 25.33 | -6.1 |
| Charlotte, NC AP | 2.50 | 22.31 | -5.2 |
| Columbia Metro AP | 0.28 | 28.83 | -1.9 |
| Orangeburg AP | 0.95 | 26.70 | -5.3 |
| Augusta, GA Bush AP | 0.78 | 25.69 | -4.2 |
| Florence AP | 0.86 | 26.02 | -3.2 |
| N Myrtle Beach AP | 0.46 | 29.92 | -3.3 |
| Charleston AP | 1.45 | 34.30 | 0.7 |
| Savannah, GA AP | 3.09 | 33.44 | 0.7 |
Weekly rainfall totals ending midnight Sunday.
4-inch depth soil temperature: Columbia 83 degrees, Charleston 85.
South Carolina river stages were below normal. Charleston Harbor reported a water temperature of 85 degrees and Springmaid Pier at Myrtle Beach reported a surf water temperature of 85 degrees.
