963 CXUS51 KPHI 021925 CLMABE CLIMATE REPORT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 224 PM EST FRI JAN 2 2009 ................................... ...THE ALLENTOWN CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2008... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1894 TO 2009 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 72 10/07/5881 10/07/5881 10/07/5881 LOW -9 10/07/5881 10/07/5881 10/07/5881 HIGHEST 63 59 4 61 LOWEST 9 8 1 14 AVG. MAXIMUM 40.7 40.0 0.7 39.5 AVG. MINIMUM 24.4 24.0 0.4 26.4 MEAN 32.5 32.0 0.5 33.0 DAYS MAX >= 90 0 0.0 0.0 0 DAYS MAX <= 32 7 6.0 1.0 4 DAYS MIN <= 32 26 24.5 1.5 26 DAYS MIN <= 0 0 0.2 -0.2 0 PRECIPITATION (INCHES) RECORD MAXIMUM 7.89 1973 MINIMUM 0.39 1955 TOTALS 6.84 3.39 3.45 5.02 DAILY AVG. 0.22 0.11 0.11 0.16 DAYS >= .01 18 11.0 7.0 19 DAYS >= .10 9 6.5 2.5 11 DAYS >= .50 5 2.5 2.5 3 DAYS >= 1.00 2 0.8 1.2 0 GREATEST 24 HR. TOTAL 2.47 12/11 TO 12/12 0.95 SNOWFALL (INCHES) RECORDS TOTAL MM 5 24 HR TOTAL MM TOTALS 6.0 3.8 2.2 6.9 SINCE 7/1 6.3 5.3 1.0 10.1 SNOWDEPTH AVG. 1 MM MM 1 DAYS >= 1.0 2 1.5 0.5 3 GREATEST SNOW DEPTH 3 12/24 2 12/19 12/23 12/18 12/22 12/17 24 HR TOTAL 2.8 MM 1.8 DEGREE_DAYS HEATING TOTAL 997 1010 -13 986 SINCE 7/1 2212 2206 6 1976 COOLING TOTAL 0 0 0 0 SINCE 1/1 784 787 -3 958 ................................................................. WIND (MPH) AVERAGE WIND SPEED 7.1 HIGHEST WIND SPEED/DIRECTION 37/330 DATE 12/31 HIGHEST GUST SPEED/DIRECTION 47/320 DATE 12/31 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 10 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 10 AVERAGE RH (PERCENT) 70 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 6 LIGHT RAIN 13 FREEZING RAIN 4 LT FREEZING RAIN 5 HEAVY SNOW 0 SNOW 1 LIGHT SNOW 9 SLEET 3 FOG 21 FOG W/VIS <= 1/4 MILE 3 HAZE 5 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$