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

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12
270
CXUS51 KPHI 012055
CLMPHL

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

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

...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.

$$