A front sagging over the region on Monday, July 10, helped to keep much of the state under cloudy skies and rainy conditions. Rainfall totals between one to three inches. Unusually cool conditions during the day, with high temperatures in the upper 70s to low 80s, up to fifteen degrees below normal. A few stations across the state set new daily record low maximum temperatures, including the National Weather Service station at the Columbia Metropolitan Airport, which only had a high of 79 degrees, breaking the previous record of 80 degrees in 1968.
After the front dissipated when it moved offshore on Tuesday, drier air settled into the Southeast, and high temperatures rebounded into the upper 80s and low 90s. Overnight temperatures were slightly cooler than normal in the Upstate, with lows in the mid-60s on Wednesday morning. Weather conditions produced strong rip currents along the coast, and six water rescues were reported at Folly Beach.
On Thursday, a more typical summer-time regime with warm temperatures, plenty of moisture, and increased rain chances returned across the region that would last through the weekend. Storms on Thursday produced heavy rain in parts of the Midlands, and an RCWinds station near Forest Acres and Interstate 77 in Richland County reported 3.31 inches of rain in 90 minutes, resulting in street flooding in the area. On Friday, a thunderstorm wind gust of 59 mph was observed at the Marlboro County Jetport, and storm spotters reported wind damage near Galivants Ferry. Due to warm and humid conditions on Saturday morning, the NWS station in Downtown Charleston tied the record high minimum temperature for the day of 82 degrees.
(Note: The highest and lowest official temperatures and highest precipitation totals provided below are based on observations from the National Weather Service (NWS) Cooperative Observer network and the National Weather Service's Forecast Offices.)| Weekly* | Since Jan 1 | Departure | |
|---|---|---|---|
| Anderson Airport | 0.13 | 32.20 | 6.3 |
| Greer Airport | 0.29 | 36.42 | 9.7 |
| Charlotte, NC Airport | 0.70 | 25.22 | 1.7 |
| Columbia Metro Airport | 1.54 | 35.18 | 10.8 |
| Orangeburg 2 (COOP) | 1.41M | 34.27M | 6.7M |
| Augusta, GA Airport | 2.18 | 35.86 | 11.3 |
| Florence Airport | 2.25 | 24.43 | 0.9 |
| North Myrtle Beach Airport | 1.16 | 20.22 | -2.1 | Charleston Air Force Base | 1.36 | 24.93 | -1.0 |
| Savannah, GA Airport | 0.79 | 25.87 | -0.3 |
| *Weekly precipitation totals ending midnight Sunday. M - denotes total with missing values. s - denotes total with suspect data. |
4-inch depth soil temperature: Clinton: 80 degrees. Columbia: 82 degrees. Barnwell: 77 degrees. Mullins: 73 degrees.
Most of the state recorded at least half an inch of rain during the period; however, some areas near the Interstate 85 corridor measured less than a quarter of an inch, especially portions of Anderson, Greenville, Oconee, and Pickens counties. Rainfall totals in the Upstate ranged mainly from half an inch to an inch, and, across the Midlands, most locations received about an inch of rain, with isolated thunderstorms producing pockets of two to three inches of rain in Aiken, Calhoun, Clarendon, Orangeburg, and Richland counties. Areas of the Lowcountry and Pee Dee recorded between half an inch and an inch of rain, with localized higher amounts near the coast. A few CoCoRaHS observers in Beaufort, Berkeley, Charleston, and Horry counties measured over six inches of rain during the period.
The streamflow values across the state's main watersheds remained within the normal ranges, with some of the gauges across the Coastal Plain reporting above-average flows. River height values remained below action and minor flood stages.
