July Climate Summary - Hot with below normal rainfall

July 2012 Climate Summary - Hot with below normal rainfall

Following record rainfall amounts in June and several rivers in major flood status, below normal rainfall amounts in July were a welcome relief. Rivers that were in flood at the beginning of the month slowly receded to near normal levels as mainly hot and slightly drier conditions dominated the weather pattern most of the month of July. This was due to a fairly static weather pattern with a Bermuda High Pressure Ridge extending across the region from the Atlantic Ocean most of the month.

For the most part, July temperatures were generally near normal but brief periods of hot temperatures during the last week of the month, mainly across inland southeast Georgia did push the thermometer above the century mark on the 25th and 26th at Alma, where daily record high temperatures reached 102 and 101 degrees, respectively. Surprisingly the other three climate stations at Jacksonville, Gainesville and St Simons Island all topped out at 96 degrees with no readings in the upper 90s reported. Humidity levels were high enough to trigger heat advisory conditions across southeast Georgia and northeast Florida early in the month on July 1st and 2nd, and again from the 25th to the 27th. Heat Index values topped out around 110 degrees during these events, but no heat related deaths have been reported.

The high pressure ridge suppressed convection slightly with generally lower than normal coverage of afternoon and evening thunderstorms for most of the month. Although isolated higher daily totals were seen locally, as on July 26th in Alma where a daily rainfall record of 2.33 inches was recorded, and all of that rainfall occurred in just over one hour. In general across southeast Georgia and northeast Florida, monthly rainfall totals were about 2 to 3 inches below the normal 4 to 7  inches expected for the month of July. Details of July climate information is included in the table below.

The Climate Prediction Center (CPC) forecast for the month of August is calling for Equal Chances (EC) of above, near or below normal for both temperature and precipitation, which can be viewed here.

 

Climate Station July Avg Temp Departure Monthly High Monthly Low July Precip Departure Daily Max Pcpn
Jacksonville, FL (JAX) 82.7 F + 0.4 F 96 F on 26th 71 F on 30th 3.35" - 3.20" 1.38" on 7th
Gainesville, FL (GNV) 82.3 F + 1.1 F 96 F on 8th 69 F on 17th 2.74" - 3.33" 0.58" on 30th
Alma, GA (AMG) 82.2 F + 0.2 F 102 F on 25th 67 F on 12th 3.92" - 1.41" 2.33" on 26th
St Simons Island, GA (SSI) 84.0 F + 1.2 F 96 F on 8th 71 F on 31st 1.27" - 2.81" 0.51" on 19th



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