National Weather Service Text Product
AFOS product CLISJU
Dates interpreted at 00:00 UTCDisplaying AFOS PIL: CLISJU
Product Timestamp: 2025-09-18 09:23 UTC
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898
CDCA42 TJSJ 180923
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
523 AM AST THU SEP 18 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR SEPTEMBER 17 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 2:08 PM 95 1995 89 2 91
MINIMUM 78 4:47 AM 72 1954 78 0 80
AVERAGE 85 83 2 86
PRECIPITATION (IN)
YESTERDAY 0.39 1.68 1911 0.21 0.18 0.23
MONTH TO DATE 3.03 3.90 -0.87 2.45
SINCE SEP 1 3.03 3.90 -0.87 2.45
SINCE JAN 1 46.65 39.84 6.81 52.66
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 21
MONTH TO DATE 330 306 24 362
SINCE SEP 1 330 306 24 362
SINCE JAN 1 4375 4117 258 4813
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 10.5
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 61
AVERAGE 76
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 96 1995
MINIMUM TEMPERATURE (F) 78 71 1960
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 6:12 AM AST SUNSET 6:23 PM AST
SEPTEMBER 19 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.
$$