Climatological Report (Monthly)
Issued by NWS
Issued by NWS
019
CXCA52 TJSJ 010949
CLMIST
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
549 AM AST MON SEP 01 2025
...................................
...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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 99 08/04/1994
08/08/1979
LOW 65 08/07/2001
HIGHEST 95 08/01 90 5 92
08/24
08/25
LOWEST 76 08/17 78 -2 74
AVG. MAXIMUM 91.5 89.8 1.7 89.2
AVG. MINIMUM 81.7 79.6 2.1 79.2
MEAN 86.6 84.7 1.9 84.2
DAYS MAX >= 90 24 15.6 8.4 18
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 9.14 2011
MINIMUM 0.70 1993
TOTALS 3.51 4.37 -0.86 7.96
DAILY AVG. 0.13 0.14 -0.01 0.26
DAYS >= .01 14 15.8 -1.8 19
DAYS >= .10 7 7.4 -0.4 13
DAYS >= .50 1 2.4 -1.4 5
DAYS >= 1.00 1 1.0 0.0 2
GREATEST
24 HR. TOTAL 3.21 08/16 TO 08/17
STORM TOTAL 2.22
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0
COOLING TOTAL 614 611 3 604
SINCE 1/1 4250
FREEZE DATES
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WIND (MPH)
AVERAGE WIND SPEED 10.7
HIGHEST WIND SPEED/DIRECTION 38/230 DATE 08/17
HIGHEST GUST SPEED/DIRECTION 57/240 DATE 08/17
SKY COVER
AVERAGE SKY COVER 0.30
AVERAGE RH (PERCENT) 73
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 4
LIGHT RAIN 11 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 4 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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