490
CXUS51 KCTP 011459
CLMIPT
CLIMATE REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
959 AM EST THU JAN 01 2026
...............................
...THE WILLIAMSPORT PA CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 70 12/01/2006
LOW -15 12/28/1950
HIGHEST 56 12/19 63 12/29
LOWEST 6 12/09 4 12/23
AVG. MAXIMUM 35.6 39.7 -4.1 39.3
AVG. MINIMUM 20.8 25.8 -5.0 24.9
MEAN 28.2 32.8 -4.6 32.1
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 11 6.2 4.8 5
DAYS MIN <= 32 30 24.1 5.9 25
DAYS MIN <= 0 0 0.1 -0.1 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.36 1973
MINIMUM 0.63 1928
TOTALS 2.33 3.27 -0.94 3.28
DAILY AVG. 0.08 0.11 -0.03 0.11
DAYS >= .01 11 11.9 -0.9 15
DAYS >= .10 7 6.2 0.8 10
DAYS >= .50 1 2.3 -1.3 1
DAYS >= 1.00 1 0.7 0.3 1
GREATEST
24 HR. TOTAL 1.19 12/18 TO 12/19 1.32 12/10 TO 12/11
SNOWFALL (INCHES)
RECORDS
TOTAL 35.5 1969
TOTALS 4.3 6.9 -2.6 7.2
SINCE 7/1 4.3 8.7 -4.4 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 2 1.7 0.3 4
GREATEST
SNOW DEPTH 1 12/14 3 12/05
12/15
12/27
24 HR TOTAL 1.6 12/02 TO 12/02 MM
DEGREE DAYS
HEATING TOTAL 1135 1000 135 1012
SINCE 7/1 2212 2173 39 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 888 798 90 MM
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WIND (MPH)
AVERAGE WIND SPEED 7.6
HIGHEST WIND SPEED/DIRECTION 35/260 DATE 12/19
HIGHEST GUST SPEED/DIRECTION 53/270 DATE 12/19
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.63
NUMBER OF DAYS FAIR 7
NUMBER OF DAYS PC 10
NUMBER OF DAYS CLOUDY 14
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 1 RAIN 2
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 2
LIGHT SNOW 15 SLEET 2
FOG 14 FOG W/VIS <= 1/4 MILE 4
HAZE 6
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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