642
CDCA42 TJSJ 180855
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
455 AM AST THU JUN 18 2026
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR JUNE 17 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1898 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 90 1:00 PM 94 2005 89 1 89
MINIMUM 79 6:21 AM 70 1960 77 2 77
AVERAGE 85 83 2 83
PRECIPITATION (IN)
YESTERDAY T 2.45 1960 0.16 -0.16 T
MONTH TO DATE 0.51 2.80 -2.29 2.32
SINCE JUN 1 0.51 2.80 -2.29 2.32
SINCE JAN 1 21.46 21.77 -0.31 26.72
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 20 18 2 18
MONTH TO DATE 330 306 24 302
SINCE JUN 1 330 306 24 302
SINCE JAN 1 2583 2439 144 2626
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NE (60)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NE (60)
AVERAGE WIND SPEED 11.8
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 79
LOWEST 59
AVERAGE 69
......................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 94 2005
2024
MINIMUM TEMPERATURE (F) 77 69 1909
SUNRISE AND SUNSET
JUNE 18 2026..........SUNRISE 5:48 AM AST SUNSET 7:02 PM AST
JUNE 19 2026..........SUNRISE 5:48 AM AST SUNSET 7:03 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page