May 2013 continued the trend of cooler than normal temperatures this spring (March, April, May). Many locations not only recorded one of the coolest May's on record but also one of the coolest spring season's on record. Spring precipitation totals ended up near normal after a wetter than normal May at most climate locations. The spring season started off with very cold conditions in early March, which actually brought snow flurries to portions of Southeast Georgia on March 3rd, along with several mornings of sub-freezing temperatures. March remained generally colder and drier than normal, and was the coldest on record in Jacksonville. The month of April re-bounded to slightly above normal temperatures and near normal precipitation. The spring of 2013 was very different than previous years where summer temperatures of 90+F started in early April from 2010 through 2012, but many locations did not reach 90 degrees until later in May this year, with Jacksonville only reaching 90 degrees one time this spring, versus 10 or more days at Jacksonville the past 3 spring seasons.
A few northeast wind and rain events occurred during the month of May and this led to above normal rainfall across the region with most coastal locations receiving 3 to 6 inches, although several locations in the Jacksonville Metro Area received up to 6 to 12 inches, with isolated 12 to 15 inch rainfall totals in St Johns County. Much further inland across the Suwannee River Valley, away from the impacts of the coastal rainfall, dry conditions prevailed with May rainfall totals around an inch or less. The image below shows the total rainfall for the month of May across the forecast area...
The following image below shows the total spring season rainfall departures from Normal (inches). Usually the spring months are drier with 3 month rainfall totals of around 8 to 10 inches, but as you can see below rainfall departures of 6 to 12 inches above normal can be seen across coastal Northeast Florida, and 2 to 4 inches above normal across Southeast Georgia, while areas across inland Northeast Florida along the I-75 corridor ended up with 2 to 4 inches below normal in some locations.
Table for climate data for May 2013...
|May 2013 Climate Data||Average Temperature||Monthly High||Monthly Low||Precipitation||Daily Max Precip|
|Jacksonville, FL||71.5 F (-2.6F) 3rd coolest on record||90F on 23rd||47F on 14th||5.39" (+2.91")||1.55" on 2nd|
|Gainesville, FL||72.5 F (-2.2F) 6th coolest on record
||91F on 23rd
||45F on 14th
||1.79" on 3rd
|Alma, GA||70.6 F (-3.1F) 2nd coolest on record
||90F on 29th
||45F on 14th
||1.46" on 5th
|St. Simons Island, GA||73.0 F (-1.5F) 16th coolest on record
||88F on 24th
||54F on 8th
||2.24" on 5th
Table for climate data for Spring 2013 (March, April, May)...
|Spring 2013 Climate Data||Average Temperature||Precipitation||Rainy Days (Normal)||Max Wind Gust||T-storm days||Days with Fog(Vis <=5SM) / Dense Fog (Vis<=1/4SM)||Days >= 90F (Normal)||Days <= 32F (Normal)||Greatest 24hr rain total|
|Jacksonville, FL||64.8 F (-2.8F) 2nd coolest All-time||11.52" (+2.45")||26 days (20 days)||49mph on 3/24||14 days||49 days / 6 days||1 day (8)||2 days (1)||2.31"|
|Gainesville, FL||66.1 F (-2.1F) 4th coolest All-time||9.03" (-0.45")||26 days (20 days)||36mph on 4/29||8 days||48 days / 10 days||8 days (9)||5 days (1)||2.87"|
|Alma, GA||63.0 F (-3.7F) 2nd coolest All-time||8.55" (-1.48")||24 days (22 days)||39mph on 4/19||15 days||61 days / 14 days||1 day (7)||4 days (1)||1.54"|
|St. Simons Island, GA||64.9 F (-2.2F) 7th coolest All-time||8.31" (+0.08")||27 days (19 days)||41 mph on 4/19||11 days||34 days / 3 days||0 days (3)||0 days (0)||2.35"|
The Climate Prediction Center (CPC) forecast for June 2013 is calling for equal chances of above, below or near normal temperatures, and greater chances of above normal rainfall. The CPC forecast for the Summer of 2013 (June, July, August) is calling for greater chances of above normal temperatures, and equal chance of above, below or near normal precipitation amounts.
TOP 5 COOLEST SPRINGS ON RECORD AT LOCAL CLIMATE SITES BASED ON AVERAGE TEMPERATURE FOR THE MONTHS OF MARCH...APRIL AND MAY ARE LISTED BELOW.
JACKSONVILLE GAINESVILLE ALMA, GA ST SIMONS ISLAND, GA
64.3F 1983 65.4F 1993 62.8F 1960 63.5F 1960
64.8F 2013*** 65.8F 1992 63.0F 2013*** 63.8F 1993
64.9F 2005 66.0F 1931 63.2F 2005 64.1F 1992
65.1F 1971 66.1F 2013*** 64.0F 1971 64.6F 1958/1969/2005
65.5F 1993 66.4F 1987 64.1F 1983 64.9F 2013***
Jason Hess (firstname.lastname@example.org)
Climate Focal Point, NWS JAX