National Weather Service Text Product
AFOS product CLISJU
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLISJU
Product Timestamp: 2025-09-17 08:51 UTC
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247
CDCA42 TJSJ 170851
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
451 AM AST WED SEP 17 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 16 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 4:11 PM 93 1900 89 0 92
MINIMUM 80 7:10 AM 69 1929 78 2 81
AVERAGE 85 83 2 87
PRECIPITATION (IN)
YESTERDAY 0.05 3.38 1996 0.22 -0.17 T
MONTH TO DATE 2.64 3.69 -1.05 2.22
SINCE SEP 1 2.64 3.69 -1.05 2.22
SINCE JAN 1 46.26 39.63 6.63 52.43
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 20 18 2 22
MONTH TO DATE 310 288 22 341
SINCE SEP 1 310 288 22 341
SINCE JAN 1 4355 4099 256 4792
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (70)
AVERAGE WIND SPEED 10.8
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91
LOWEST 68
AVERAGE 80
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 95 1995
MINIMUM TEMPERATURE (F) 78 72 1954
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 6:12 AM AST SUNSET 6:24 PM AST
SEPTEMBER 18 2025.....SUNRISE 6:12 AM AST SUNSET 6:23 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$