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

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CXCA52 TJSJ 080428
CLMSJU

CLIMATE REPORT...RESENT
NATIONAL WEATHER SERVICE SAN JUAN PR
1228 AM AST FRI OCT 08 2021

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             97   09/01/1981
 LOW              69   09/15/1960
                       09/06/1960
                       09/16/1929
HIGHEST           96   09/22         91       5       95
LOWEST            76   09/11         79      -3       77
                       09/12
AVG. MAXIMUM    90.8               89.2     1.6     89.7
AVG. MINIMUM    79.1               77.5     1.6     78.8
MEAN            84.9               83.4     1.5     84.2
DAYS MAX >= 90    22               12.5     9.5       15
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       15.79   2017
 MINIMUM        1.49   1940
TOTALS          4.48               6.50   -2.02     5.03
DAILY AVG.      0.15               0.22   -0.07     0.17
DAYS >= .01       17               18.3    -1.3       25
DAYS >= .10       10               10.8    -0.8       10
DAYS >= .50        3                3.7    -0.7        5
DAYS >= 1.00       1                1.3    -0.3        0
GREATEST
 24 HR. TOTAL   1.13   09/11 TO 09/11
 STORM TOTAL    1.13


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0
COOLING TOTAL    604                550      54      583
 SINCE 1/1      4553

FREEZE DATES
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
HIGHEST WIND SPEED/DIRECTION    31/060    DATE  09/11
HIGHEST GUST SPEED/DIRECTION    37/060    DATE  09/11

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             11     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

$$


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