


Climatological Report (Seasonal)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
856 CXCA52 TJSJ 021733 CLSSJU CLIMATE REPORT NATIONAL WEATHER SERVICE SAN JUAN PR 133 PM AST TUE SEP 02 2025 ................................... ...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE SEASON, FROM 6/1/2025 TO 8/31/2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1898 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 97 06/05/1988 06/23/1983 06/22/1983 LOW 66 06/19/1909 HIGHEST 93 08/03 08/19 LOWEST 76 07/19 08/17 08/23 AVG. MAXIMUM 89.2 88.9 0.3 91.3 AVG. MINIMUM 78.2 77.5 0.7 80.4 MEAN 83.7 83.2 0.5 85.9 DAYS MAX >= 90 34 34.6 -0.6 85 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 DAYS MIN >= 80 19 71 PRECIPITATION (INCHES) RECORD MAXIMUM 43.24 2011 MINIMUM 6.67 1980 TOTALS 19.38 16.97 2.41 17.33 DAILY AVG. 0.21 0.18 0.03 0.19 DAYS >= .01 73 53.9 19.1 74 DAYS >= .10 45 29.7 15.3 31 DAYS >= .50 11 10.1 0.9 12 DAYS >= 1.00 3 4.2 -1.2 3 GREATEST 24 HR. TOTAL MM MM STORM TOTAL MM DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 COOLING TOTAL 1721 1678 43 1939 SINCE 1/1 4046 FREEZE DATES .............................................................. WIND (MPH) AVERAGE WIND SPEED 10.4 HIGHEST WIND SPEED/DIRECTION 31/290 DATE 08/16 HIGHEST GUST SPEED/DIRECTION 45/300 DATE 08/16 SKY COVER AVERAGE SKY COVER 0.44 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 8 MIXED PRECIP 0 HEAVY RAIN 10 RAIN 13 LIGHT RAIN 45 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 23 FOG W/VIS <= 1/4 MILE 0 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$