August Climate Summary: Wet conditions continue

August continued the summer of 2013's abnormal weather pattern of weakening cold fronts stalling and washing out across Southeast Georgia and Northeast Florida. This continued to keep temperatures from getting too hot with near normal temperatures recorded in August, but it also brought significant pockets of heavy rainfall from slow moving thunderstorms. The big weather story of the month occurred in Jacksonville as a strong thunderstorm mixed with the sea breeze front on the afternoon of August 1st and an EF1 Tornado developed in the Arlington section of town with 15 to 20 homes damaged...some severely, along with numerous trees downed, but only 1 person was reported to have received minor injuries. The tornado was about 100 yards wide and traveled a distance of 2.5 miles through the eastern suburbs of Jacksonville.

As can be seen in the monthly rainfall graphics below...rainfall was quite variable across the region, but 10 to 15 inch values across the Altamaha River Basin in Southeast Georgia and along the Suwannee River Basin and I-75 corridor of Northeast Florida sent those river basins into flood for much of the month. In fact, several counties across inland southeast Georgia had to postpone the start of the new school year due to secondary roads being flooded and/or too muddy during the middle part of the month. A slow moving thunderstorm produced flash flooding in the Jesup vicinity of Wayne County on the 20th which damaged several homes. The remainder of the forecast area received near normal precipitation which ranged from 4 to 8 inches in most locations, although Gainesville only reported 2.80 inches, its 7th driest August on record which comes on the heels of its all-time wettest July on record.

Jacksonville, FL (JAX): August, 2013 Monthly Observed Precipitation Valid at 9/1/2013 1200 UTC - Created 9/3/13 21:36 UTC

 Jacksonville, FL (JAX): August, 2013 Monthly Percent of Normal Precipitation Valid at 9/1/2013 1200 UTC - Created 9/3/13 21:41 UTC

Aug 2013 Climate Data Average Temperature Monthly High Monthly Low Total Precipitation Daily Max Rainfall Highest Wind Gust
Jacksonville, FL (JAX) 81.8 F (Normal) 95 F on 12th, 13th 69 F on 28th

5.95" (-0.85")

65th Driest

1.07" on 14th 53 mph on 31st
Gainesville, FL (GNV) 82.3 F (+1.4 F) 96 F on 12th 69 F on 28th

2.80" (-3.59")

7th Driest

0.55" on 16th 31 mph on 1st
Alma, GA (AMG) 81.5 F (+0.2 F) 95 F on 12th, 13th 65 F on 28th

9.45" (+4.04")

6th Wettest

2.66" on 15th 36 mph on 4th
St. Simons Island, GA (SSI) 82.0 F (+0.2 F) 96 F on 13th 71 F on 15th, 26th

7.90" (+1.63")

18th Wettest

2.40" on 15th 30 mph on 21st


Jason Hess - Climate Focal Point

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