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South Carolina State Climatology Office
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June 29, 2009 - July 5, 2009


The first of several boundaries of dry air passed southeastward through the state on Monday. At 6:00 p.m., Aiken reported a relative humidity value of just 14 percent while the Hilton Head Airport, ahead of the change, indicated a heat index value of 117 degrees. At 6:45 p.m., thunderstorms developed near Charleston producing a 51 mph wind at Joe Riley Stadium. At the end of June, Ft. Moultrie had received 9.97 inches of rain. Wilting heat would be observed through Thursday. At 3:00 p.m. Wednesday, the Columbia Airport was reporting 99 degrees, west winds gusting at 26 mph and a relative humidity value of 23 percent. Both Johnston and Walterboro peaked at 101 degrees. Camden's thermometer registered 99 degrees on Thursday. The Sandhill Experiment Station reported a 24-hour open pan evaporation water loss of 0.52 inches Wednesday and Thursday. Deep blue skies signaled the arrival of the week's second reinforcing boundary of cooler, drier air on Friday morning. Unusually low temperatures greeted early risers on July the Fourth, Saturday, with many inland sites recording temperatures in the 50's and lower 60's. Clouds began increasing throughout the day on Sunday before late evening thunderstorms started to form over eastern and southern sections. The state average temperature for the period was near normal.

The highest official temperature reported was 102 degrees at Hilton Head AP on June 29. The lowest official temperature reported was 56 degrees at Walhalla and Chesnee on June 30 and at Cedar Creek and Pageland on July 4. The heaviest 24-hour rainfall reported was 1.85 inches at Orangeburg AP on July 5. The state average rainfall for the period was 0.2 inches.


                       Weekly   Jan 1   Departure     
                        Total   Total   from Avg
         Greer           0.01   24.73     -2.0
      Columbia           0.07   19.37     -5.8
    Orangeburg           1.85   24.38     -0.8
 Charlotte, NC           0.20   24.65      2.1
   Augusta, GA           0.72   22.32     -1.8
      Florence           0.14   19.43     -2.9
N Myrtle Beach           0.14   16.89     -3.6
    Charleston           0.09   22.28     -2.2
  Savannah, GA           0.06   27.89      4.0   


Weekly rainfall totals ending midnight Sunday.  


4-inch depth soil temperature: Columbia 83 degrees, Charleston 86 degrees.


South Carolina river stages were near normal. Ocean water temperatures at the Edisto Buoy were reported at 82 degrees.

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