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

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CDCA42 TJSJ 210442
CLISJU


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1240 AM AST MON AUG 21 2017


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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR AUGUST 20 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         90   1049 AM  96    1980  89      1       89
  MINIMUM         77   1158 AM  69    1904  78     -1       79
  AVERAGE         84                        84      0       84

PRECIPITATION (IN)
  YESTERDAY        1.23          3.10 1901   0.18   1.05     0.00
  MONTH TO DATE    5.60                      3.27   2.33     3.22
  SINCE JUN 1     16.19                     12.75   3.44    11.06
  SINCE JAN 1     36.60                     31.43   5.17    35.94

SNOWFALL (IN)
  YESTERDAY        0.0                       0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE JUN 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 JUN 1      0                         0      0        0
  SINCE JUL 1      0                         0      0        0

 COOLING
  YESTERDAY       19                        19      0       19
  MONTH TO DATE  394                       380     14      373
  SINCE JUN 1   1549                      1499     50     1518
  SINCE JAN 1   3812                      3664    148     3794
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    NE (60)
  HIGHEST GUST SPEED    29   HIGHEST GUST DIRECTION    NE (60)
  AVERAGE WIND SPEED     4.3


SKY COVER
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  THUNDERSTORM
  RAIN
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97
 LOWEST     75
 AVERAGE    86

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


THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   89        97      1980
 MINIMUM TEMPERATURE (F)   78        72      1956


SUNRISE AND SUNSET
AUGUST 21 2017........SUNRISE   607 AM AST   SUNSET   647 PM AST
AUGUST 22 2017........SUNRISE   608 AM AST   SUNSET   646 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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