weather.gov     
National Weather Service

Climatological Report (Monthly)
NWS Homepage

Current Version
Previous Version:    01  02  03  04  05  06  07  08  09  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  
[Printable]
429
CXCA52 TJSJ 011136
CLMSJU

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1248 AM AST TUE OCT 1 2013

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

...THE SAN JUAN/P.R. CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2013...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1898 TO 2013

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              97   09/01/1981

 LOW               69   09/15/1960
                        09/06/1960

HIGHEST            96   09/29        93       3
LOWEST             74   09/06        73       1
AVG. MAXIMUM     90.4              89.2     1.2
AVG. MINIMUM     78.4              77.8     0.6
MEAN             84.4              83.5     0.9
DAYS MAX >= 90     19              10.0     9.0
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.0     0.0
DAYS MIN <= 0       0               0.0
0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        15.17   1996
 MINIMUM         1.49   1940
TOTALS           7.61              5.77    1.84
DAILY AVG.       0.25              0.19    0.06
DAYS >= .01        17              17.4    -0.4
DAYS >= .10         8              10.1    -2.1
DAYS >= .50         6               3.3     2.7
DAYS >= 1.00        1               1.1    -0.1
GREATEST
 24 HR. TOTAL    2.88   09/14 TO 09/14
                        09/13 TO 09/14
                        09/14 TO 09/14

DEGREE_DAYS
HEATING TOTAL       0                 0       0
 SINCE 7/1          0                 0       0
COOLING TOTAL     589               555      34
 SINCE 1/1       4505              4419      86
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.7
RESULTANT WIND SPEED/DIRECTION   4/092
HIGHEST WIND SPEED/DIRECTION    30/270    DATE  09/19
HIGHEST GUST SPEED/DIRECTION    38/260    DATE  09/19

SKY COVER
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             19
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       2
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      1
HAZE                      5

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

$$







U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE