Climatological Report (Monthly)
Issued by NWS Jacksonville, FL

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000
CXUS52 KJAX 020332 RRA
CLMSSI

CLIMATE REPORT
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1258 PM EST MON JAN 1 2018

...................................

...THE ST SIMONS ISLAND CLIMATE SUMMARY FOR THE YEAR OF 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             104   07/20/1986
 LOW                6   01/21/1985
HIGHEST            96   08/16        76      20       99  07/29
                        07/07                             07/09
                        06/25
LOWEST             29   01/08        60     -31       28  01/24
AVG. MAXIMUM     78.5              76.1     2.4     77.7
AVG. MINIMUM     63.2              60.1     3.1     61.8
MEAN             70.8              68.1     2.7     69.8
DAYS MAX >= 90     47              40.9     6.1       65
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      2               9.3    -7.3        4
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        73.46   1953
 MINIMUM        24.27   2010
TOTALS          49.05             45.00    4.05    46.27
DAILY AVG.       0.13              0.12    0.01     0.13
DAYS >= .01       101             100.6     0.4       85
DAYS >= .10        66              65.3     0.7       53
DAYS >= .50        28              27.8     0.2       25
DAYS >= 1.00       11              13.3    -2.3        7
GREATEST
 24 HR. TOTAL    6.25   MM                       12/31 TO 12/31
                                                          12/31 TO 12/31
                                                          12/31 TO 12/31
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/31(00) TO 12/31(00)
                                                 12/31(00) TO 12/31(00)1
                                                 12/31(00) TO 12/31(00)1

SNOWFALL (INCHES)
RECORDS
 TOTAL            4.0   1989
 24 HR TOTAL      4.0   12/23/1989 TO 12/23/1989
 SNOW DEPTH         4   12/23/1989
TOTALS            0.0               0.2    -0.2      0.0
 LIQUID EQUIV    0.00              0.00    0.00     0.00
SINCE 7/1         0.0               0.2    -0.2      0.0
 LIQUID 7/1      0.00              0.00    0.00     0.00
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   MM                       12/31 TO 12/31
                                                          12/31 TO 12/31
                                                          12/31 TO 12/31
 STORM TOTAL       MM                                 MM
 (MM/DD(HH))            MM                    12/31(00) TO 12/31(00)
                                                 12/31(00) TO 12/31(00)1
                                                 12/31(00) TO 12/31(00)1

DEGREE_DAYS
HEATING TOTAL     907              1489    -582     1168
 SINCE 7/1        433               531     -98      307
COOLING TOTAL    3136              2628     508     3026
 SINCE 1/1       3136              2628     508     3026

FREEZE DATES
RECORD
 EARLIEST     11/03/1954
 LATEST       03/31/1964
EARLIEST                        12/20
LATEST                          02/14
..................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
RESULTANT WIND SPEED/DIRECTION   1/127
HIGHEST WIND SPEED/DIRECTION    38/050    DATE  09/10
HIGHEST GUST SPEED/DIRECTION    56/050    DATE  09/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR          243
NUMBER OF DAYS PC             91
NUMBER OF DAYS CLOUDY         29

AVERAGE RH (PERCENT)     74

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               48     RAIN                      54
LIGHT RAIN              112     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                1     SLEET                      0
FOG                     144     FOG W/VIS <= 1/4 MILE     22
HAZE                     30

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$



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