Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 170854
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
454 AM AST FRI OCT 17 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR OCTOBER 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 92 3:02 PM 96 2023 89 3 92
MINIMUM 75 6:14 AM 71 1964 77 -2 79
AVERAGE 84 83 1 86
PRECIPITATION (IN)
YESTERDAY 0.10 1.93 2017 0.15 -0.05 T
MONTH TO DATE 2.28 2.43 -0.15 1.59
SINCE SEP 1 8.88 8.93 -0.05 4.90
SINCE JAN 1 52.50 44.87 7.63 55.11
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 307 288 19 344
SINCE SEP 1 883 838 45 983
SINCE JAN 1 4928 4649 279 5434
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 5.4
SKY COVER
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 90
LOWEST 49
AVERAGE 70
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 95 1980
MINIMUM TEMPERATURE (F) 77 69 1908
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 6:18 AM AST SUNSET 6:00 PM AST
OCTOBER 18 2025.......SUNRISE 6:19 AM AST SUNSET 5:59 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$