


Climatological Report (Monthly)
Issued by NWS
Issued by NWS
352 CXCA52 TJSJ 011234 CLMISX CLIMATE REPORT NATIONAL WEATHER SERVICE SAN JUAN PR 834 AM AST WED OCT 01 2025 ................................... ...THE HENRY E. ROHLSEN AP/ST CROIX CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1951 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 97 09/09/2023 09/09/2023 LOW 63 09/05/1979 HIGHEST 92 09/05 92 0 93 09/16 LOWEST 73 09/18 81 -8 73 AVG. MAXIMUM 89.0 89.0 0.0 90.8 AVG. MINIMUM 76.8 76.6 0.2 78.8 MEAN 82.9 82.8 0.1 84.8 DAYS MAX >= 90 13 12.6 0.4 27 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.0 0.0 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 19.15 1996 MINIMUM 0.76 2023 TOTALS MM 4.89 MM 3.71 DAILY AVG. MM 0.16 MM 0.13 DAYS >= .01 MM 15.7 MM MM DAYS >= .10 MM 8.3 MM MM DAYS >= .50 MM 2.2 MM MM DAYS >= 1.00 MM 0.7 MM MM GREATEST 24 HR. TOTAL MM STORM TOTAL MM DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 COOLING TOTAL 546 534 12 604 SINCE 1/1 4431 FREEZE DATES .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.9 HIGHEST WIND SPEED/DIRECTION 23/090 DATE 09/15 23/130 09/24 HIGHEST GUST SPEED/DIRECTION 34/220 DATE 09/24 SKY COVER AVERAGE SKY COVER 0.30 AVERAGE RH (PERCENT) 80 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 15 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 1 LIGHT RAIN 6 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 1 FOG W/VIS <= 1/4 MILE 0 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$