881
CDCA42 TJSJ 210850
CLISJU
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
450 AM AST THU MAY 21 2026
...............................
..THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR MAY 20 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 88 3:55 PM 92 1999 88 0 91
2024
MINIMUM 76 6:22 AM 68 1957 76 0 76
AVERAGE 82 82 0 84
PRECIPITATION (IN)
YESTERDAY 0.10 3.54 1987 0.18 -0.08 0.29
MONTH TO DATE 1.69 3.58 -1.89 5.71
SINCE MAR 1 11.34 10.36 0.98 16.38
SINCE JAN 1 19.71 17.01 2.70 23.17
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JUL 1 0 0 0 0
COOLING
YESTERDAY 17 17 0 19
MONTH TO DATE 360 324 36 312
SINCE MAR 1 1277 1197 80 1245
SINCE JAN 1 2069 1944 125 2129
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 9.7
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 91
LOWEST 51
AVERAGE 71
......................................................
THE SAN JUAN AREA/PR CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 95 2005
2024
MINIMUM TEMPERATURE (F) 76 69 2011
SUNRISE AND SUNSET
MAY 21 2026...........SUNRISE 5:49 AM AST SUNSET 6:53 PM AST
MAY 22 2026...........SUNRISE 5:48 AM AST SUNSET 6:53 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