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

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173
CXCA52 TJSJ 010511
CLMSJU


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
110 AM AST FRI SEP 1 2017

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

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

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              97   08/21/1980
 LOW               68   08/12/1904
HIGHEST            93   08/12        92       1       94  08/29
LOWEST             75   08/17        73       2       76  08/16
                                                          08/14
                                                          08/05
AVG. MAXIMUM     89.7              89.2     0.5     89.0
AVG. MINIMUM     79.4              78.2     1.2     78.4
MEAN             84.5              83.7     0.8     83.7
DAYS MAX >= 90     18               9.9     8.1        9
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        18.56   2011
 MINIMUM         1.53   1919
TOTALS           7.68              5.46    2.22     5.14
DAILY AVG.       0.25              0.18    0.07     0.17
DAYS >= .01        21              18.5     2.5       16
DAYS >= .10        12              10.1     1.9        9
DAYS >= .50         5               3.3     1.7        3
DAYS >= 1.00        3               1.2     1.8        3
GREATEST
 24 HR. TOTAL    2.21   08/17 TO 08/17

SNOWFALL (INCHES)
TOTALS            0.0               0.0     0.0      0.0

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
COOLING TOTAL     614               580      34      584
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.4
HIGHEST WIND SPEED/DIRECTION    30/050    DATE  08/16
HIGHEST GUST SPEED/DIRECTION    38/040    DATE  08/16

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     78

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       7
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      0
HAZE                      5

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

$$




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