Climatological Report (Monthly)
Issued by NWS

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350
CXCA52 TJSJ 011234
CLMIST

CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
834 AM AST WED OCT 01 2025

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

...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1953 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             98   09/28/1993
                       09/05/1993
                       09/01/1993
 LOW              64   09/17/1972
HIGHEST           MM                 92      MM       93
LOWEST            MM                 80      MM       74
AVG. MAXIMUM      MM               89.2      MM     89.5
AVG. MINIMUM      MM               79.5      MM     79.6
MEAN              MM               84.4      MM     84.6
DAYS MAX >= 90    MM               12.2      MM       13
DAYS MAX <= 32    MM                0.0      MM        0
DAYS MIN <= 32    MM                0.0      MM        0
DAYS MIN <= 0     MM                0.0      MM        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       14.94   1953
 MINIMUM        0.92   2012
TOTALS            MM               5.89      MM     6.34
DAILY AVG.        MM               0.20      MM     0.21
DAYS >= .01       MM               15.2      MM       17
DAYS >= .10       MM                8.5      MM       11
DAYS >= .50       MM                2.5      MM        3
DAYS >= 1.00      MM                1.0      MM        2
GREATEST
 24 HR. TOTAL     MM
 STORM TOTAL      MM


DEGREE DAYS
HEATING TOTAL      0                  0       0        0
 SINCE 7/1         0
COOLING TOTAL    454                580    -126      595
 SINCE 1/1      4704

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

WIND (MPH)
AVERAGE WIND SPEED              8.3
HIGHEST WIND SPEED/DIRECTION    30/130    DATE  09/24
HIGHEST GUST SPEED/DIRECTION    40/140    DATE  09/24

SKY COVER
AVERAGE SKY COVER           0.24

AVERAGE RH (PERCENT)     MM

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             11     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       3
LIGHT RAIN               11     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                      4

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

$$