Climatological Report (Monthly)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
000 CXCA52 TJSJ 021850 CLMSJU CLIMATE REPORT NATIONAL WEATHER SERVICE SAN JUAN PR 250 PM AST MON OCT 02 2023 ................................... ...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1898 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 97 09/01/1981 LOW 69 09/15/1960 09/06/1960 09/16/1929 HIGHEST 96 09/13 91 5 94 LOWEST 77 09/08 79 -2 75 AVG. MAXIMUM 91.5 89.2 2.3 89.2 AVG. MINIMUM 80.1 77.5 2.6 78.1 MEAN 85.8 83.4 2.4 83.6 DAYS MAX >= 90 25 12.5 12.5 12 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 15.79 2017 MINIMUM 1.49 1940 TOTALS 3.05 6.50 -3.45 13.61 DAILY AVG. 0.10 0.22 -0.12 0.45 DAYS >= .01 17 18.3 -1.3 13 DAYS >= .10 8 10.8 -2.8 7 DAYS >= .50 2 3.7 -1.7 2 DAYS >= 1.00 0 1.3 -1.3 1 GREATEST 24 HR. TOTAL MM STORM TOTAL 0.96 DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 COOLING TOTAL 634 550 84 565 SINCE 1/1 4721 FREEZE DATES .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.0 HIGHEST WIND SPEED/DIRECTION 24/080 DATE 09/22 24/080 09/27 HIGHEST GUST SPEED/DIRECTION 29/070 DATE 09/27 29/040 09/30 SKY COVER AVERAGE SKY COVER 0.38 AVERAGE RH (PERCENT) 75 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 9 MIXED PRECIP MM HEAVY RAIN 3 RAIN 11 LIGHT RAIN 13 FREEZING RAIN MM LT FREEZING RAIN MM HAIL MM HEAVY SNOW MM SNOW MM LIGHT SNOW MM SLEET MM FOG 6 FOG W/VIS <= 1/4 MILE MM HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$