416
CDCA42 TJSJ 210853
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
453 AM AST SUN SEP 21 2025
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 20 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 92 11:41 AM 95 1981 89 3 91
MINIMUM 76 4:45 AM 72 1920 77 -1 77
AVERAGE 84 83 1 84
PRECIPITATION (IN)
YESTERDAY 0.32 7.11 2017 0.21 0.11 0.54
MONTH TO DATE 3.95 4.54 -0.59 3.04
SINCE SEP 1 3.95 4.54 -0.59 3.04
SINCE JAN 1 47.57 40.48 7.09 53.25
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 19
MONTH TO DATE 382 360 22 423
SINCE SEP 1 382 360 22 423
SINCE JAN 1 4427 4171 256 4874
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 2.8
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 56
AVERAGE 72
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THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 95 2019
MINIMUM TEMPERATURE (F) 77 71 1960
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 6:13 AM AST SUNSET 6:21 PM AST
SEPTEMBER 22 2025.....SUNRISE 6:13 AM AST SUNSET 6:20 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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