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CDCA42 TJSJ 310901
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
501 AM AST THU JUL 31 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JULY 30 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 91 12:56 PM 94 1990 89 2 91
MINIMUM 78 3:15 AM 71 1919 78 0 80
AVERAGE 85 83 2 86
PRECIPITATION (IN)
YESTERDAY 0.10 4.46 2020 0.20 -0.10 T
MONTH TO DATE 5.47 5.83 -0.36 4.35
SINCE JUN 1 9.48 10.49 -1.01 7.76
SINCE JAN 1 33.88 29.46 4.42 40.64
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 20 18 2 21
MONTH TO DATE 567 540 27 627
SINCE JUN 1 1094 1083 11 1266
SINCE JAN 1 3418 3216 202 3778
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WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION NE (30)
AVERAGE WIND SPEED 9.7
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 61
AVERAGE 76
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THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 94 1980
MINIMUM TEMPERATURE (F) 78 71 1927
SUNRISE AND SUNSET
JULY 31 2025..........SUNRISE 6:02 AM AST SUNSET 6:59 PM AST
AUGUST 1 2025........SUNRISE 6:02 AM AST SUNSET 6:59 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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