Climatological Report (Daily)
Issued by NWS San Juan, PR

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CDCA42 TJSJ 120445
CLISJU


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1245 AM AST TUE DEC 12 2017


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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR DECEMBER 11 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1898 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         84    249 PM  89    1994  84      0       87
  MINIMUM         76    103 AM  65    1957  74      2       76
  AVERAGE         80                        79      1       82

PRECIPITATION (IN)
  YESTERDAY        0.32          2.26 2007   0.17   0.15     0.08
  MONTH TO DATE    1.96                      1.89   0.07     1.64
  SINCE DEC 1      1.96                      1.89   0.07     1.64
  SINCE JAN 1     73.20                     53.22  19.98    68.45

SNOWFALL (IN)
  YESTERDAY        0.0                       0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE DEC 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      0.0                       0.0    0.0      0.0

DEGREE DAYS
 HEATING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY       15                        14      1       17
  MONTH TO DATE  170                       154     16      187
  SINCE DEC 1    170                       154     16      187
  SINCE JAN 1   5832                      5580    252     5848
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION     E (80)
  HIGHEST GUST SPEED    31   HIGHEST GUST DIRECTION     E (80)
  AVERAGE WIND SPEED     7.7


SKY COVER
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    85
 LOWEST     63
 AVERAGE    74

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


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84        91      1987
 MINIMUM TEMPERATURE (F)   74        65      1957


SUNRISE AND SUNSET
DECEMBER 12 2017......SUNRISE   647 AM AST   SUNSET   549 PM AST
DECEMBER 13 2017......SUNRISE   647 AM AST   SUNSET   549 PM AST


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




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