688
CDCA42 TJSJ 100858
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
458 AM AST WED SEP 10 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 9 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 89 1:44 PM 94 2013 89 0 90
2021
MINIMUM 77 6:25 AM 70 1988 78 -1 79
AVERAGE 83 83 0 85
PRECIPITATION (IN)
YESTERDAY T 1.82 1988 0.23 -0.23 0.27
MONTH TO DATE 0.83 2.12 -1.29 1.35
SINCE SEP 1 0.83 2.12 -1.29 1.35
SINCE JAN 1 44.45 38.06 6.39 51.56
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 18 18 0 20
MONTH TO DATE 172 162 10 191
SINCE SEP 1 172 162 10 191
SINCE JAN 1 4217 3973 244 4642
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 4.3
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 63
AVERAGE 77
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THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 94 1998
2017
MINIMUM TEMPERATURE (F) 78 71 1961
SUNRISE AND SUNSET
SEPTEMBER 10 2025.....SUNRISE 6:11 AM AST SUNSET 6:30 PM AST
SEPTEMBER 11 2025.....SUNRISE 6:11 AM AST SUNSET 6:29 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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