786
CXUS51 KPHI 011832
CLMABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
231 PM EDT WED MAY 1 2013
...............................
..THE ALLENTOWN CLIMATE SUMMARY FOR THE MONTH OF APRIL 2013
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1922 TO 2013
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 93 04/25/1915
LOW 12 04/01/1923
HIGHEST 86 82 4 90
LOWEST 21 26 -5 29
AVG. MAXIMUM 62.5 61.3 1.2 63.9
AVG. MINIMUM 39.5 38.5 1.0 38.6
MEAN 51.0 49.9 1.1 51.2
DAYS MAX >= 90 0 0.2 -0.2 1
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 7 5.9 1.1 9
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.09 1952
MINIMUM 0.61 1985
TOTALS 2.93 3.56 -0.63 2.92
DAILY AVG. 0.10 0.12 -0.02 0.10
DAYS >= .01 9 12.1 -3.1 6
DAYS >= .10 5 6.8 -1.8 4
DAYS >= .50 3 2.3 0.7 1
DAYS >= 1.00 1 0.9 0.1 1
GREATEST
24 HR. TOTAL 1.10 04/19 TO 04/20 2.09
SNOWFALL (INCHES)
RECORDS
TOTAL T 2011
2009
2008
24 HR TOTAL MM
TOTALS 0.0 1.0 -1.0 0.0
SINCE 7/1 21.4 32.9 -11.5 12.0
SNOWDEPTH AVG. 0 MM MM 0
DAYS >= 1.0 0 0.2 -0.2 0
GREATEST
SNOW DEPTH 0 MM 0 MM
24 HR TOTAL 0.0 04/30 TO 04/30 0.0
DEGREE_DAYS
HEATING TOTAL 421 458 -37 414
SINCE 7/1 5209 5570 -361 4431
COOLING TOTAL 8 5 3 8
SINCE 1/1 8 5 3 9
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WIND (MPH)
AVERAGE WIND SPEED 8.0
HIGHEST WIND SPEED/DIRECTION 30/320 DATE 04/10
HIGHEST GUST SPEED/DIRECTION 43/250 DATE 04/24
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.40
NUMBER OF DAYS FAIR 14
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 7
AVERAGE RH (PERCENT) 59
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 3 RAIN 5
LIGHT RAIN 16 FREEZING RAIN 0
LT FREEZING RAIN 0 HEAVY SNOW 0
SNOW 0 LIGHT SNOW 0
SLEET 0 FOG 11
FOG W/VIS <= 1/4 MILE 2 HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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