270
CXUS51 KPHI 012055
CLMPHL

CLIMATE REPORT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
455 PM EDT WED OCT 01 2025

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...THE PHILADELPHIA PA CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1872 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH            102   09/07/1881
 LOW              35   09/25/1963
HIGHEST           90   09/06         91      -1       87  09/14
                                                          09/19
LOWEST            56   09/08         49       7       54  09/09
AVG. MAXIMUM    81.9               78.9     3.0     78.8
AVG. MINIMUM    64.1               60.9     3.2     62.4
MEAN            73.0               69.9     3.1     70.6
DAYS MAX >= 90     1                2.0    -1.0        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       13.07   1999
 MINIMUM        0.20   1884
TOTALS          1.79               4.40   -2.61     0.77
DAILY AVG.      0.06               0.15   -0.09     0.03
DAYS >= .01       11                9.3     1.7        8
DAYS >= .10        8                5.6     2.4        3
DAYS >= .50        0                2.4    -2.4        0
DAYS >= 1.00       0                1.3    -1.3        0
GREATEST
 24 HR. TOTAL   0.53   09/06 TO 09/07               0.35

SNOWFALL (INCHES)
RECORDS
 TOTAL           0.0   MM
 SNOW DEPTH        0   MM
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.0                0.0     0.0        T
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                                 0.0

DEGREE DAYS
HEATING TOTAL      0                 26     -26        1
 SINCE 7/1         0                 27     -27        1
COOLING TOTAL    248                175      73      177
 SINCE 1/1      1521               1332     189     1599
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.1
HIGHEST WIND SPEED/DIRECTION    23/270    DATE  09/25
HIGHEST GUST SPEED/DIRECTION    38/200    DATE  09/25

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.64
NUMBER OF DAYS FAIR            4
NUMBER OF DAYS PC             15
NUMBER OF DAYS CLOUDY         11

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       7
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HEAVY SNOW                 0
SNOW                      0     LIGHT SNOW                 0
SLEET                     0     FOG                       10
FOG W/VIS <= 1/4 MILE     0     HAZE                       0

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

$$