368
CXUS51 KPHI 011316
CLMABE

CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
916 AM EDT SUN JUN 01 2025

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

...THE ALLENTOWN PA CLIMATE SUMMARY FOR THE MONTH OF MAY 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1922 TO 2025

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           83   05/02         89      -6       86  05/22
                                                          05/25
LOWEST            40   05/01         35       5       40  05/11
AVG. MAXIMUM    70.6               73.5    -2.9     73.0
AVG. MINIMUM    51.1               50.6     0.5     53.7
MEAN            60.8               62.0    -1.2     63.4
DAYS MAX >= 90     0                1.0    -1.0        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        0.09   1964
TOTALS         10.45               3.65    6.80     3.77
DAILY AVG.      0.34               0.12    0.22     0.12
DAYS >= .01       19               12.4     6.6       14
DAYS >= .10       14                7.6     6.4        9
DAYS >= .50        8                2.6     5.4        4
DAYS >= 1.00       3                0.7     2.3        0
GREATEST
 24 HR. TOTAL   2.17   05/13 TO 05/14               0.67

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   2020
 SNOW DEPTH        0   MM
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1       17.8               33.1   -15.3     25.2
SNOWDEPTH AVG.     0                                   0
DAYS >= TRACE      0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0
 24 HR TOTAL     0.0                                   0

DEGREE DAYS
HEATING TOTAL    145                151      -6      114
 SINCE 7/1      5183               5275     -92     4860
COOLING TOTAL     26                 60     -34       72
 SINCE 1/1        27                 68     -41       83
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.4
HIGHEST WIND SPEED/DIRECTION    30/230    DATE  05/06
HIGHEST GUST SPEED/DIRECTION    44/250    DATE  05/02

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.53
NUMBER OF DAYS FAIR           10
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY          9

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              6     MIXED PRECIP               0
HEAVY RAIN                9     RAIN                      12
LIGHT RAIN               22     FREEZING RAIN              0
LT FREEZING RAIN          0     HEAVY SNOW                 0
SNOW                      0     LIGHT SNOW                 0
SLEET                     0     FOG                       19
FOG W/VIS <= 1/4 MILE     3     HAZE                       0

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

$$