Climatological Report (Monthly)
Issued by NWS
Issued by NWS
055 CXCA52 TJSJ 011020 CLMIST CLIMATE REPORT NATIONAL WEATHER SERVICE SAN JUAN PR 620 AM AST MON JAN 01 2024 ................................... ...THE CYRIL E. KING AP/ST THOMAS CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1953 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 92 12/25/1995 12/11/1995 12/04/1995 LOW 62 12/05/1972 HIGHEST 88 12/08 88 0 87 12/09 LOWEST 70 12/30 77 -7 71 AVG. MAXIMUM 84.7 85.2 -0.5 85.0 AVG. MINIMUM 75.2 74.9 0.3 74.7 MEAN 80.0 80.1 -0.1 79.9 DAYS MAX >= 90 0 1.8 -1.8 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 9.87 1960 MINIMUM 0.63 1963 TOTALS 3.96 2.93 1.03 0.82 DAILY AVG. 0.13 0.09 0.04 0.03 DAYS >= .01 16 17.4 -1.4 11 DAYS >= .10 6 7.6 -1.6 3 DAYS >= .50 2 1.2 0.8 0 DAYS >= 1.00 1 0.7 0.3 0 GREATEST 24 HR. TOTAL 1.88 12/10 TO 12/10 STORM TOTAL 1.88 DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 COOLING TOTAL 472 467 5 466 SINCE 1/1 6389 FREEZE DATES .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.4 HIGHEST WIND SPEED/DIRECTION 28/070 DATE 12/10 28/080 12/13 HIGHEST GUST SPEED/DIRECTION 42/070 DATE 12/13 SKY COVER AVERAGE SKY COVER 0.26 AVERAGE RH (PERCENT) 79 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 1 HEAVY RAIN 1 RAIN 16 LIGHT RAIN 13 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 10 FOG W/VIS <= 1/4 MILE 0 HAZE 1 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$