Climatological Report (Daily)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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CDCA42 TJSJ 180924
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
524 AM AST SAT OCT 18 2025
...................................
...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR OCTOBER 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 94 12:25 PM 95 1980 89 5 91
MINIMUM 79 6:39 AM 69 1908 77 2 80
AVERAGE 87 83 4 86
PRECIPITATION (IN)
YESTERDAY 0.02 2.53 1958 0.16 -0.14 0.01
MONTH TO DATE 2.30 2.59 -0.29 1.60
SINCE SEP 1 8.90 9.09 -0.19 4.91
SINCE JAN 1 52.52 45.03 7.49 55.12
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 22 18 4 21
MONTH TO DATE 329 306 23 365
SINCE SEP 1 905 856 49 1004
SINCE JAN 1 4950 4667 283 5455
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION NW (310)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 5.7
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 74
LOWEST 51
AVERAGE 63
..........................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 94 1979
MINIMUM TEMPERATURE (F) 77 70 1957
SUNRISE AND SUNSET
OCTOBER 18 2025.......SUNRISE 6:19 AM AST SUNSET 5:59 PM AST
OCTOBER 19 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.
$$