*These data are preliminary and have not undergone final quality control by the National Climatic Data Center (NCDC). Therefore, these data are subject to revision. Final and certified climate data can be accessed at the NCDC - http://www.ncdc.noaa.gov . * Climatological Report (Monthly) 340 CXCA52 TJSJ 021552 CLMSJU CLIMATE REPORT NATIONAL WEATHER SERVICE SAN JUAN, PR 1151 AM AST FRI FEB 2 2018 ................................... ...THE SAN JUAN AREA/PR CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2018... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1898 TO 2018 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 92 01/23/1983 01/16/1983 01/11/1982 LOW 61 01/31/1962 HIGHEST 88 01/04 87 1 90 01/24 01/03 LOWEST 70 01/31 66 4 68 01/19 AVG. MAXIMUM 84.2 83.2 1.0 84.3 AVG. MINIMUM 73.6 72.0 1.6 73.1 MEAN 78.9 77.6 1.3 78.7 DAYS MAX >= 90 0 0.2 -0.2 1 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 15.47 1937 MINIMUM 0.61 1978 TOTALS 5.18 3.76 1.42 1.89 DAILY AVG. 0.17 0.12 0.05 0.06 DAYS >= .01 21 17.6 3.4 15 DAYS >= .10 12 9.2 2.8 8 DAYS >= .50 2 1.8 0.2 0 DAYS >= 1.00 1 0.5 0.5 0 GREATEST 24 HR. TOTAL 1.59 01/16 TO 01/16 SNOWFALL (INCHES) TOTALS 0.0 0.0 0.0 0.0 DEGREE_DAYS HEATING TOTAL 0 0 0 0 COOLING TOTAL 439 391 48 433 ................................................................. WIND (MPH) AVERAGE WIND SPEED 9.3 HIGHEST WIND SPEED/DIRECTION 31/080 DATE 01/27 HIGHEST GUST SPEED/DIRECTION 40/080 DATE 01/27 SKY COVER AVERAGE SKY COVER 0.40 AVERAGE RH (PERCENT) 80 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 6 LIGHT RAIN 19 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 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. ------------------------------------------------------------------------