Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDCA42 TJSJ 180913
CLIISX
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
513 AM AST SAT JUL 18 2026
...................................
...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR JULY 17 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1951 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 91 12:59 PM 93 1989 89 2 89
MINIMUM 80 6:19 AM 73 1998 77 3 79
AVERAGE 86 83 3 84
PRECIPITATION (IN)
YESTERDAY 0.00 0.94 1958 0.09 -0.09 0.03
MONTH TO DATE T 1.36 -1.36 0.97
SINCE JUN 1 0.07 3.28 -3.21 2.38
SINCE JAN 1 4.39 14.03 -9.64 2.45
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 21 18 3 19
MONTH TO DATE 342 306 36 303
SINCE JUN 1 897 840 57 830
SINCE JAN 1 3116 2954 162 3054
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 24 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 15.0
SKY COVER
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82
LOWEST 54
AVERAGE 68
..........................................................
THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 89 93 1989
2024
MINIMUM TEMPERATURE (F) 77 70 1960
SUNRISE AND SUNSET
JULY 18 2026..........SUNRISE 5:54 AM AST SUNSET 6:57 PM AST
JULY 19 2026..........SUNRISE 5:54 AM AST SUNSET 6:57 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$