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

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962
CXCA52 TJSJ 050410
CLMSJU


CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN, PR
1209 AM AST THU OCT 5 2017

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 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   09/01/1981
 LOW               69   09/15/1960
                        09/06/1960
                        09/16/1929
HIGHEST            94   09/24        91       3       94  09/23
                        09/13
                        09/12
LOWEST             75   09/06        79      -4       75  09/12
                                                          09/05
AVG. MAXIMUM     89.6              89.2     0.4     89.1
AVG. MINIMUM     79.4              77.8     1.6     77.9
MEAN             84.5              83.5     1.0     83.5
DAYS MAX >= 90     14              10.0     4.0        8
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        15.15   1996
 MINIMUM         1.49   1940
TOTALS          15.79R             5.77   10.02     4.91
DAILY AVG.       0.53              0.19    0.34     0.16
DAYS >= .01        17              17.4    -0.4       25
DAYS >= .10        10              10.1    -0.1       16
DAYS >= .50         6               3.3     2.7        2
DAYS >= 1.00        3               1.1     1.9        0
GREATEST
 24 HR. TOTAL    7.11   09/20 TO 09/20

SNOWFALL (INCHES)
TOTALS            0.0                MM      MM      0.0

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
COOLING TOTAL     554               555      -1      564
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.2
HIGHEST WIND SPEED/DIRECTION    46/020    DATE  09/20
HIGHEST GUST SPEED/DIRECTION    75/020    DATE  09/20

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     80

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       7
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

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

$$





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