


Climatological Report (Monthly)
Issued by NWS
Issued by NWS
350 CXCA52 TJSJ 011234 CLMIST CLIMATE REPORT NATIONAL WEATHER SERVICE SAN JUAN PR 834 AM AST WED OCT 01 2025 ................................... ...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1953 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 98 09/28/1993 09/05/1993 09/01/1993 LOW 64 09/17/1972 HIGHEST MM 92 MM 93 LOWEST MM 80 MM 74 AVG. MAXIMUM MM 89.2 MM 89.5 AVG. MINIMUM MM 79.5 MM 79.6 MEAN MM 84.4 MM 84.6 DAYS MAX >= 90 MM 12.2 MM 13 DAYS MAX <= 32 MM 0.0 MM 0 DAYS MIN <= 32 MM 0.0 MM 0 DAYS MIN <= 0 MM 0.0 MM 0 PRECIPITATION (INCHES) RECORD MAXIMUM 14.94 1953 MINIMUM 0.92 2012 TOTALS MM 5.89 MM 6.34 DAILY AVG. MM 0.20 MM 0.21 DAYS >= .01 MM 15.2 MM 17 DAYS >= .10 MM 8.5 MM 11 DAYS >= .50 MM 2.5 MM 3 DAYS >= 1.00 MM 1.0 MM 2 GREATEST 24 HR. TOTAL MM STORM TOTAL MM DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 COOLING TOTAL 454 580 -126 595 SINCE 1/1 4704 FREEZE DATES .............................................................. WIND (MPH) AVERAGE WIND SPEED 8.3 HIGHEST WIND SPEED/DIRECTION 30/130 DATE 09/24 HIGHEST GUST SPEED/DIRECTION 40/140 DATE 09/24 SKY COVER AVERAGE SKY COVER 0.24 AVERAGE RH (PERCENT) MM WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 11 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 3 LIGHT RAIN 11 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 9 FOG W/VIS <= 1/4 MILE 0 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$