Triple digit heat covered the state during the whole week. A few sites observed their highest temperatures since the record setting heat wave of September 1925. The Greenville-Spartanburg Airport tied its all-time high with 104 degrees Saturday, July 31 and Charleston Airport established an all-time record high with 105 degrees on Sunday, August 1. At 5:00 p.m. on Sunday, Myrtle Beach observed what is now considered a state record heat index value of 123 degrees. Late afternoon thunderstorms over the weekend were isolated in nature and brought little relief to baking topsoils. Statewide temperatures for the period averaged seven degrees above normal.
PRECIPITATION AND TEMPERATURE DATA
The maximum observed temperature was 109 degrees on August 1 at the University of South Carolina in Columbia. The minimum observed temperature was 62 degrees at Salem on the morning of July 27. The heaviest official 24-hour rainfall was recorded at Hunts Bridge with 1.79" ending at 7:00 a.m. on August 1. Statewide rainfall for the period averaged 0.0 inches.
Precipitation
Period 1999 Deviation* Temperature
Location Total Total From Avg. Maximum Minimum
Greer 0.07 21.0 10.7B 104 71
Charlotte, NC 0.03 20.6 5.4B 100 69
Columbia 0.00 20.8 10.0B 104 72
Florence FAA 0.17 23.0 4.3B 104 72
Blackville 0.00 27.2 3.4B 108 66
Augusta, GA 0.00 24.1 4.4B 107 68
Beaufort 0.00 33.4 2.7A 104 77
Charleston 0.00 21.5 9.8B 105 76
Myrtle Beach 0.00 23.7 7.1B 99 74
*A=Above, B=Below
Note: Weekly rainfall amounts are for the prior 24-hrs ending 7 am Monday
through ending 7 am Sunday
ENERGY DEMAND AND AGRICULTURAL ADVISORY
Degree Days
Actual
July 1-31
Cooling Heating
Columbia 525 0
Charleston 548 0
Greenville 470 0
The Columbia Airport reports an average 4-inch depth soil temperature of 88
degrees.
RIVERS AND SURF
Most river stages are below normal. Surf temperatures at Myrtle Beach and Savannah will average around 84 degrees.
sco@water.dnr.state.sc.us http://water.dnr.state.sc.us/climate/sco/wk080299.html