719
CXCA52 TJSJ 061253
CLMIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
502 AM AST THU JAN 01 2026
...............................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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 92 12/25/1995
12/11/1995
12/04/1995
LOW 62 12/05/1972
HIGHEST 90 12/05 88 2 87
12/06
12/07
LOWEST 69 12/28 77 -8 71
AVG. MAXIMUM 87.3 85.2 2.1 85.1
AVG. MINIMUM 76.6 74.9 1.7 75.3
MEAN 81.9 80.1 1.8 80.2
DAYS MAX >= 90 3 1.8 1.2 0
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 9.87 1960
MINIMUM 0.63 1963
TOTALS MM 2.93 MM 4.82
DAILY AVG. 0.04 0.09 -0.05 0.16
DAYS >= .01 16 17.4 -1.4 20
DAYS >= .10 4 7.6 -3.6 10
DAYS >= .50 0 1.2 -1.2 3
DAYS >= 1.00 0 0.7 -0.7 1
GREATEST
24 HR. TOTAL 0.85 12/24 TO 12/25
STORM TOTAL 0.36
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0
COOLING TOTAL 449 467 -18 479
SINCE 1/1 5826
FREEZE DATES
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WIND (MPH)
AVERAGE WIND SPEED 8.8
HIGHEST WIND SPEED/DIRECTION 25/120 DATE 12/07
HIGHEST GUST SPEED/DIRECTION 37/120 DATE 12/07
SKY COVER
AVERAGE SKY COVER 0.31
AVERAGE RH (PERCENT) 78
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 4
LIGHT RAIN 12 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 13 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.
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