Drying, late summer heat was observed on both Monday and Tuesday with several sites reporting 90 degrees. A boundary of cooler air entered the state early Wednesday providing near cloudless blue skies. Morning low temperatures on Thursday fell into the 40's and 50's. Southerly winds on Friday helped afternoon temperatures warm into the 80's. Saturday, the first day of Autumn 2006, was hot and humid. Isolated thundershowers blossomed in the late afternoon heat. Widely scattered showers began forming late Sunday with the approach of a cooler airmass. For the period, the state average temperature was two degrees above normal.
The highest official temperature reported was 92 degrees shared by Sandy Run on September 19, Johnston, Aiken and Pritchardville on September 23, and at Andrews on September 24. The lowest official temperature reported was 43 degrees at Cheraw on the morning of September 21. The heaviest official 24-hour rainfall reported was 1.68 inches at N. Myrtle Beach AP ending at 7:00 AM on September 20. The average statewide rainfall for the period was 0.3 inches.
PRECIPITATION AND TEMPERATURE DATA
Precipitation Weekly Jan 1 Deviation Total Total From Avg Greer 0.23 29.22 -8.7 Columbia 0.00 31.48 -7.0 Orangeburg 0.00 30.10 -8.5 Charlotte, NC 0.00 31.95 -0.6 Augusta, GA 0.18 30.20 -4.7 Florence 0.17 36.19 1.1 Myrtle Beach 1.68 40.23 5.1 Charleston 0.44 40.24 -1.3 Savannah, GA 1.21 27.98 -12.5 Weekly rainfall totals ending midnight Sunday.
SOIL: 4-inch depth average soil temperature: Columbia 77 degrees.
RIVERS AND SURF: South Carolina river stages were below normal. Ocean water temperatures at Myrtle Beach and Fripp Inlet were reported from 77 to 78 degrees.