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CDCA42 TJSJ 200909
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
509 AM AST SAT SEP 20 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 19 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 1:20 PM 95 2013 89 2 90
MINIMUM 76 1:49 AM 71 1950 77 -1 82
AVERAGE 84 83 1 86
PRECIPITATION (IN)
YESTERDAY 0.04 1.92 2014 0.21 -0.17 0.03
MONTH TO DATE 3.63 4.33 -0.70 2.50
SINCE SEP 1 3.63 4.33 -0.70 2.50
SINCE JAN 1 47.25 40.27 6.98 52.71
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 19 18 1 21
MONTH TO DATE 363 342 21 404
SINCE SEP 1 363 342 21 404
SINCE JAN 1 4408 4153 255 4855
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION S (180)
AVERAGE WIND SPEED 3.9
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 59
AVERAGE 74
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THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 95 1981
MINIMUM TEMPERATURE (F) 77 72 1920
SUNRISE AND SUNSET
SEPTEMBER 20 2025.....SUNRISE 6:13 AM AST SUNSET 6:22 PM AST
SEPTEMBER 21 2025.....SUNRISE 6:13 AM AST SUNSET 6:21 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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