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September's climate report: heavier-than-normal rainfall from Irma

We saw more rainfall than normal because of Hurricane Irma

September's Climo
September's Climo

JACKSONVILLE, Fla. –  The National Weather Service office in Jacksonville released this report for September: With impacts from Hurricane Irma across the entire area, all climate sites received above average precipitation for the month. Even with only six measurable days of precipitation, 
Jacksonville was 5.14 inches above normal with a total of 13.33 inches. Alma, Ga was 4.38 inches above normal with a total of 8.02 inches. St. Simons Island was 7.15 inches above normal with a total of 12.91 inches, and Gainesville was 10.86 inches above normal with a total of 15.28 inches. Additionally, many area rivers saw record flood stages broken as a result of rain and surge from Hurricane Irma. Most of the records defeated were records set with Hurricane Dora from September of 1964.  

AT JACKSONVILLE INTERNATIONAL AIRPORT...

Temperatures

The average temperature for September was 79.0 degrees which is 0.8 degrees above normal for Jacksonville International Airport. The average daily high was 87.4 degrees and the average daily low was 70.6 degrees. The maximum temperature for the month was 93 degrees which occurred on the 20th, 27, and 28th of the month. The minimum temperature for the month was 63 degrees which occurred on the 13th. There was one daily low max temperature record set during the month of September. A record low max daily temperature of 76 degrees was set on September 13th. This broke the previous record off 77 degrees set in 1982. Eleven September days had high temperatures reach 90 degrees or higher.  

Rainfall

There were 6 days of measurable rainfall in September at Jacksonville International Airport. Monthly rainfall totaled 13.33 inches which is 5.14 inches above normal. The greatest 24 hour total in September was 5.18 inches on the 10th. There was one precipitation record set in September. 4.54 inches of rain was observed on September 11th, which broke the old record of 4.12 inches set in 1960. 

Wind

The average wind speed for September was 7 miles per hour. The peak wind speed was 59 miles per hour on the 11th. The peak wind gust for the month was 86 miles per hour on the 11th. 

October Outlook

The temperature outlook for northeast Florida and southeast Georgia indicates between 33 and 40 percent, to see above normal average temperatures. The precipitation outlook for southeast Georgia indicates between 33 and 40 percent, to see above normal 
precipitation. The precipitation outlook for northeast Florida indicates, between 40 and 50 percent, to see above normal precipitation. The average temperature for October is 70.4 degrees. 
The average max temperature is 80.4 degrees and the average min temperature is 60.5 degrees. Average rainfall for the month of October is 3.93 inches.

 
Additional Rainfall Reports

FL   MAYPORT NAVAL STATION                M                         
FL   JASPER                            8.84
FL   BEAUCLERC                        12.44
FL   JACKSONVILLE BEACH               10.51
FL   FERNADINA BEACH                      M 
FL   LAKE CITY                        10.25
FL   LAKE CITY 2 E                        M
FL   GLEN ST MARY 1 W                     M     
FL   SOUTH PONTE VEDRA BEACH SHOP     14.08
FL   GUANA RIVER STATE PARK N         14.11
FL   PALM COAST 6 NE                      M
FL   CRESCENT CITY                    13.90
FL   GAINESVILLE RGNL AP              15.28
FL   HASTINGS 4NE                     14.89 
FL   STARKE                               M
FL   OCALA                            12.92
FL   WHITE SPRINGS 7N                     M
FL   JACKSONVILLE CRAIG MUNI AP       10.29
FL   JACKSONVILLE INTL AP             13.33
FL   JACKSONVILLE NAS                  9.90
FL   ST AUGUSTINE LH                      M
FL   ST AUGUSTINE AP                      M
FL   BELL 4NW                             M
FL   FEDERAL POINT                    13.53 
FL   BIG TALBOT ISLAND BOAT RAMP       7.76
FL   BIG TALBOT ISLAND BIKE TRAIL      7.21
FL   L. TALBOT ISLAND PARK SHOP       11.00
FL   L. TALBOT ISLAND RANGER STATION   9.45
FL   L. TALBOT ISLAND SOUTH BEACH      9.72
FL   BUNNELL                          13.30
FL   PALM COAST                       11.58
FL   PALM COAST 6 NE                      M      
FL   FLAGLER BEACH                    14.00
FL   MARINELAND                           M

GA   PRIDGEN                           7.56
GA   HOMERVILLE 5 N                       M
GA   ALMA BACON CO AP                  8.02                 
GA   NAHUNTA 6 NE                      7.65   
GA   FARGO 17 NE                          M
GA   BRUNSWICK                        11.20
GA   BRUNSWICK MALCOLM MCKINNON AP    12.91
GA   WOODBINE                          5.73


RAINFALL REPORTS ARE PRELIMINARY. CO-OP SITES REPORT A 24 HOUR TOTAL
NOT BASED ON A MIDNIGHT TO MIDNIGHT CALENDAR DAY. 


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