672
CXUS51 KPHI 011935
CLAABE

CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
235 PM EST FRI JAN 01 2021

...................................

...THE ALLENTOWN PA CLIMATE SUMMARY FOR THE YEAR OF 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1922 TO 2020

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           96   07/19         MM      MM       96  07/21
LOWEST             5   12/19         MM      MM       -4  02/01
AVG. MAXIMUM    64.6               61.4     3.2     64.0
AVG. MINIMUM    44.4               40.9     3.5     44.5
MEAN            54.5               51.1     3.4     54.3
DAYS MAX >= 90    24               11.0    13.0       24
DAYS MAX <= 32     8               23.0   -15.0       11
DAYS MIN <= 32    92              123.0   -31.0      108
DAYS MIN <= 0      0                1.0    -1.0        2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       71.72   2011
 MINIMUM          MM     MM
TOTALS         50.13              45.35    4.78    60.66
DAILY AVG.      0.14               0.12    0.02     0.16
DAYS >= .01      124              126.0    -2.0      139
DAYS >= .10       73               78.0    -5.0       91
DAYS >= .50       28               29.0    -1.0       45
DAYS >= 1.00       9               11.0    -2.0       16
GREATEST
 24 HR. TOTAL   4.92                                2.75
 STORM TOTAL      MM                                  MM

SNOWFALL (INCHES)
RECORDS
 TOTAL          74.4   1994
 24 HR TOTAL      MM    MM
 SNOW DEPTH       28   01/24/2016
TOTALS          16.2               32.9   -16.7     26.1
 LIQUID EQUIV   1.60               3.20   -1.60     2.61
SINCE 7/1       13.0                5.9     7.1       MM
 LIQUID 7/1     1.30               0.50    0.80       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= TRACE     28               17.0    11.0       36
DAYS >= 1.0        3                8.0    -5.0        8
GREATEST
 SNOW DEPTH       11   12/17                           6  03/04
                       12/18
 24 HR TOTAL     1.9   MM                            6.3
 STORM TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL   4776               5800   -1024     4960
 SINCE 7/1      1923               2194    -271       MM
COOLING TOTAL   1043                757     286     1176
 SINCE 1/1      1043                757     286     1176
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
RESULTANT WIND SPEED/DIRECTION   2/290
HIGHEST WIND SPEED/DIRECTION    40/250    DATE  08/27
HIGHEST GUST SPEED/DIRECTION    56/240    DATE  08/27

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.44
NUMBER OF DAYS FAIR          163
NUMBER OF DAYS PC            116
NUMBER OF DAYS CLOUDY         87

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             34     MIXED PRECIP               0
HEAVY RAIN               51     RAIN                      71
LIGHT RAIN              170     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                2     SNOW                       4
LIGHT SNOW               27     SLEET                      0
FOG                     159     FOG W/VIS <= 1/4 MILE     17
HAZE                     73

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

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