425
CXCA52 TJSJ 010944
CLMSJU

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
544 AM AST THU OCT 01 2026

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

...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2026...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2026

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           95   09/25         91       4       95
                       09/26
LOWEST            75   09/01         79      -4       76
AVG. MAXIMUM    90.2               89.2     1.0     89.9
AVG. MINIMUM    78.8               77.5     1.3     78.0
MEAN            84.5               83.4     1.1     84.0
DAYS MAX >= 90    19               12.5     6.5       17
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          6.90               6.50    0.40     6.60
DAILY AVG.      0.23               0.22    0.01     0.22
DAYS >= .01       19               18.3     0.7       23
DAYS >= .10       12               10.8     1.2       14
DAYS >= .50        6                3.7     2.3        5
DAYS >= 1.00       0                1.3    -1.3        1
GREATEST
 24 HR. TOTAL   1.40   09/21 TO 09/22
 STORM TOTAL    0.98


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0
COOLING TOTAL    591                550      41      575
 SINCE 1/1      4709

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

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    28/060    DATE  09/07
                                28/060          09/24
HIGHEST GUST SPEED/DIRECTION    36/060    DATE  09/07
                                36/060          09/24

SKY COVER
AVERAGE SKY COVER           0.40

AVERAGE RH (PERCENT)     75

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       8
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

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

$$