417
CXUS51 KPHI 020043
CLAABE
CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
743 PM EST WED JAN 01 2025
...............................
..THE ALLENTOWN PA CLIMATE SUMMARY FOR THE YEAR OF 2024
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1922 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 105 07/03/1966
LOW -15 01/21/1994
HIGHEST 98 06/22 96 2 96 06/02
LOWEST 1 12/23 2 -1 4 02/04
AVG. MAXIMUM 64.4 63.3 1.1 64.0
AVG. MINIMUM 43.9 42.8 1.1 43.2
MEAN 54.1 53.1 1.0 53.6
DAYS MAX >= 90 25 18.0 7.0 10
DAYS MAX <= 32 11 22.0 -11.0 3
DAYS MIN <= 32 100 118.1 -18.1 105
DAYS MIN <= 0 0 1.2 -1.2 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 71.72 2011
MINIMUM 29.82 1980
TOTALS 42.06 47.36 -5.30 46.38
DAILY AVG. 0.12 0.13 -0.01 0.13
DAYS >= .01 124 129.1 -5.1 116
DAYS >= .10 77 81.5 -4.5 78
DAYS >= .50 30 31.3 -1.3 30
DAYS >= 1.00 13 12.3 0.7 15
GREATEST
24 HR. TOTAL 2.35 08/18 TO 08/18 3.27 12/17 TO 12/18
STORM TOTAL 2.35 3.27
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL 74.4 1994
24 HR TOTAL MM
SNOW DEPTH 28 02/12/1983 & 01/24/2016
TOTALS 30.0 33.1 -3.1 4.9
LIQUID EQUIV 3.00 3.30 -0.30 0.50
SINCE 7/1 4.8 5.7 -0.9 T
LIQUID 7/1 0.48 0.50 -0.02 T
SNOWDEPTH AVG. 0 0
DAYS >= TRACE 28 16.0 12.0 25
DAYS >= 1.0 6 8.0 -2.0 3
GREATEST
SNOW DEPTH 8 02/17 2 02/28
24 HR TOTAL 9.1 02/13 TO 02/13 2.2
STORM TOTAL 9.1 2.2
(MM/DD(HH)) MM
DEGREE DAYS
HEATING TOTAL 4856 5293 -437 4812
SINCE 7/1 1870 1970 -100 MM
COOLING TOTAL 994 981 13 790
SINCE 1/1 994 981 13 MM
FREEZE DATES
RECORD
EARLIEST 09/24/1974
LATEST 05/21/2002
EARLIEST 10/18
LATEST 04/25
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WIND (MPH)
AVERAGE WIND SPEED 6.6
RESULTANT WIND SPEED/DIRECTION 1/290
HIGHEST WIND SPEED/DIRECTION 38/280 DATE 04/03
HIGHEST GUST SPEED/DIRECTION 50/290 DATE 06/26
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.41
NUMBER OF DAYS FAIR 191
NUMBER OF DAYS PC 87
NUMBER OF DAYS CLOUDY 88
AVERAGE RH (PERCENT) 66
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 29 MIXED PRECIP 0
HEAVY RAIN 34 RAIN 61
LIGHT RAIN 149 FREEZING RAIN 0
LT FREEZING RAIN 1 HAIL 0
HEAVY SNOW 1 SNOW 3
LIGHT SNOW 26 SLEET 4
FOG 127 FOG W/VIS <= 1/4 MILE 16
HAZE 7
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
STAARMANN
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