Climatological Report (Monthly)
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
945 CXCA52 TJSJ 011020 CLMSJU CLIMATE REPORT NATIONAL WEATHER SERVICE SAN JUAN PR 620 AM AST MON JAN 01 2024 ................................... ...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 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 94 12/06/1989 LOW 62 12/29/1917 HIGHEST 89 12/04 87 2 87 LOWEST 72 12/29 68 4 71 AVG. MAXIMUM 84.6 84.2 0.4 84.7 AVG. MINIMUM 74.8 73.3 1.5 74.1 MEAN 79.7 78.8 0.9 79.4 DAYS MAX >= 90 0 0.5 -0.5 0 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 16.81 1981 MINIMUM 0.68 1963 TOTALS 7.71 4.85 2.86 3.72 DAILY AVG. 0.25 0.16 0.09 0.12 DAYS >= .01 29 20.2 8.8 23 DAYS >= .10 9 10.6 -1.6 8 DAYS >= .50 6 2.6 3.4 1 DAYS >= 1.00 2 0.9 1.1 0 GREATEST 24 HR. TOTAL 2.26 12/10 TO 12/10 STORM TOTAL 2.26 DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 COOLING TOTAL 464 426 38 453 SINCE 1/1 6363 FREEZE DATES .............................................................. WIND (MPH) AVERAGE WIND SPEED 8.2 HIGHEST WIND SPEED/DIRECTION 31/070 DATE 12/13 HIGHEST GUST SPEED/DIRECTION 41/070 DATE 12/13 SKY COVER AVERAGE SKY COVER 0.47 AVERAGE RH (PERCENT) 77 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 1 HEAVY RAIN 7 RAIN 30 LIGHT RAIN 19 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 11 FOG W/VIS <= 1/4 MILE 0 HAZE 2 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$