765
CXCA52 TJSJ 021731
CLMSJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
131 PM AST TUE SEP 02 2025
...............................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 97 08/21/1980
LOW 68 08/12/1904
HIGHEST 93 08/03 92 1 95
08/19
LOWEST 76 08/17 73 3 77
08/23
AVG. MAXIMUM 89.7 89.1 0.6 91.0
AVG. MINIMUM 79.1 77.8 1.3 80.5
MEAN 84.4 83.5 0.9 85.8
DAYS MAX >= 90 18 12.8 5.2 30
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 18.56 2011
MINIMUM 1.53 1919
TOTALS 9.64 6.29 3.35 9.16
DAILY AVG. 0.31 0.20 0.11 0.30
DAYS >= .01 23 19.8 3.2 24
DAYS >= .10 15 11.0 4.0 13
DAYS >= .50 7 3.7 3.3 6
DAYS >= 1.00 2 1.5 0.5 2
GREATEST
24 HR. TOTAL MM
STORM TOTAL MM
DEGREE DAYS
HEATING TOTAL 0 0 0 0
SINCE 7/1 0
COOLING TOTAL 608 572 36 653
SINCE 1/1 4045
FREEZE DATES
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WIND (MPH)
AVERAGE WIND SPEED 8.5
HIGHEST WIND SPEED/DIRECTION 31/290 DATE 08/16
HIGHEST GUST SPEED/DIRECTION 45/300 DATE 08/16
SKY COVER
AVERAGE SKY COVER 0.43
AVERAGE RH (PERCENT) 75
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 7 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 5
LIGHT RAIN 18 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 8 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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