Climatological Report (Daily)
Issued by NWS
Issued by NWS
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893
CDCA42 TJSJ 180851
CLIISX
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN JUAN PR
451 AM AST MON AUG 18 2025
...................................
...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR AUGUST 17 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1951 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 89 3:41 PM 95 2020 90 -1 91
2023
MINIMUM 77 5:37 AM 63 1978 78 -1 79
AVERAGE 83 84 -1 85
PRECIPITATION (IN)
YESTERDAY MM 2.92 1978 0.11 MM MM
MONTH TO DATE 0.00 1.67 -1.67 T
SINCE JUN 1 3.23 6.23 -3.00 1.87
SINCE JAN 1 3.30 16.98 -13.68 9.77
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 18 18 0 20
MONTH TO DATE 299 306 -7 344
SINCE JUN 1 1384 1406 -22 1600
SINCE JAN 1 3608 3520 88 3487
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 28 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 12.8
SKY COVER
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 94
LOWEST 70
AVERAGE 82
..........................................................
THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 95 2020
MINIMUM TEMPERATURE (F) 78 72 1975
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:03 AM AST SUNSET 6:43 PM AST
AUGUST 19 2025........SUNRISE 6:03 AM AST SUNSET 6:42 PM AST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$