Climatological Report (Monthly)
Issued by NWS Mt. Holly, NJ

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CXUS51 KPHI 012025
CLMABE

CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
425 PM EDT MON JUN 01 2020

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

...THE ALLENTOWN PA CLIMATE SUMMARY FOR THE MONTH OF MAY 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             97   05/19/1962
 LOW              28   05/10/1947
HIGHEST           87                 88      -1       88
LOWEST            34                 36      -2       40
AVG. MAXIMUM    70.6               71.5    -0.9     74.2
AVG. MINIMUM    49.3               48.3     1.0     55.1
MEAN            60.0               59.9     0.1     64.6
DAYS MAX >= 90     0                0.6    -0.6        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.4    -0.4        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       10.62   1984
 MINIMUM           T   2013
TOTALS          2.68               4.14   -1.46     9.10
DAILY AVG.      0.09               0.13   -0.04     0.29
DAYS >= .01       10               12.1    -2.1       17
DAYS >= .10        5                7.6    -2.6       12
DAYS >= .50        3                2.7     0.3        7
DAYS >= 1.00       0                1.1    -1.1        3
GREATEST
 24 HR. TOTAL   1.02   04/30 TO 04/30               1.54

SNOWFALL (INCHES)
RECORDS
 TOTAL            MM   5
 24 HR TOTAL      MM
TOTALS             T                0.0     0.0      0.0
SINCE 7/1        5.3               32.9   -27.6       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL       T   05/09 TO 05/09                0.0

DEGREE DAYS
HEATING TOTAL    197                198      -1       93
 SINCE 7/1      4706               5768   -1062     4992
COOLING TOTAL     48                 40       8       88
 SINCE 1/1        48                 45       3      100
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.2
HIGHEST WIND SPEED/DIRECTION    29/080    DATE  05/19
HIGHEST GUST SPEED/DIRECTION    40/270    DATE  05/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.47
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       5
LIGHT RAIN               15     FREEZING RAIN              0
LT FREEZING RAIN          0     HEAVY SNOW                 0
SNOW                      0     LIGHT SNOW                 1
SLEET                     0     FOG                        9
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.

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