457
CXUS51 KPHI 052240 CCA
CLMILG
CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1021 PM EST FRI JAN 02 2026
...............................
...THE WILMINGTON DE CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1894 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
............................................................
TEMPERATURE (F)
RECORD
HIGH 75 12/04/1998
LOW -7 12/25/1983
12/30/1917
HIGHEST 58 12/19 64 -6 63 12/11
LOWEST 13 12/16 16 -3 9 12/23
AVG. MAXIMUM 41.8 46.0 -4.2 45.9
AVG. MINIMUM 25.2 30.3 -5.1 29.1
MEAN 33.5 38.2 -4.7 37.5
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 2 3.0 -1.0 2
DAYS MIN <= 32 29 20.1 8.9 21
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.58 2009
MINIMUM 0.19 1955
TOTALS 3.27 3.85 -0.58 3.34
DAILY AVG. 0.11 0.12 -0.01 0.11
DAYS >= .01 11 10.6 0.4 15
DAYS >= .10 4 6.7 -2.7 7
DAYS >= .50 3 3.0 0.0 3
DAYS >= 1.00 1 1.0 0.0 0
GREATEST
24 HR. TOTAL 1.38 12/19 TO 12/19 0.91
SNOWFALL (INCHES)
RECORDS
TOTAL 21.5 1966
SNOW DEPTH 15 12/30/1935
TOTALS 4.8 2.9 1.9 0.1
SINCE 7/1 4.8 3.1 1.7 0.1
SNOWDEPTH AVG. T 0
DAYS >= TRACE 8 3
DAYS >= 1.0 1 1.0 0.0 0
GREATEST
SNOW DEPTH 4 12/15 0
24 HR TOTAL 4.1 12/14 TO 12/14 0.1
DEGREE DAYS
HEATING TOTAL 969 832 137 848
SINCE 7/1 1735 1685 50 1500
COOLING TOTAL 0 0 0 0
SINCE 1/1 1333 1228 105 1328
............................................................
WIND (MPH)
AVERAGE WIND SPEED 8.8
HIGHEST WIND SPEED/DIRECTION 38/280 DATE 12/29
HIGHEST GUST SPEED/DIRECTION 55/290 DATE 12/29
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.40
NUMBER OF DAYS FAIR 16
NUMBER OF DAYS PC 9
NUMBER OF DAYS CLOUDY 6
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 1
HEAVY RAIN 2 RAIN 2
LIGHT RAIN 9 FREEZING RAIN 1
LT FREEZING RAIN 3 HEAVY SNOW 1
SNOW 1 LIGHT SNOW 7
SLEET 3 FOG 12
FOG W/VIS <= 1/4 MILE 1 HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page