142
CDUS41 KCTP 170615
CLIIPT
CLIMATE REPORT
NATIONAL WEATHER SERVICE STATE COLLEGE PA
215 AM EDT WED SEP 17 2025
...............................
..THE WILLIAMSPORT PA CLIMATE SUMMARY FOR SEPTEMBER 16 2025
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1895 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 83 343 PM 92 1991 75 8 84
MINIMUM 55 632 AM 38 1923 54 1 55
1966
AVERAGE 69 65 4 70
PRECIPITATION (IN)
YESTERDAY 0.00 2.38 1999 0.18 -0.18 0.00
MONTH TO DATE 0.09 2.50 -2.41 0.19
SINCE SEP 1 0.09 2.50 -2.41 0.19
SINCE JAN 1 26.65 31.04 -4.39 36.06
DEGREE DAYS
HEATING
YESTERDAY 0 3 -3 0
MONTH TO DATE 19 25 -6 21
SINCE SEP 1 19 25 -6 21
SINCE JUL 1 37 33 4 30
COOLING
YESTERDAY 4 2 2 5
MONTH TO DATE 38 59 -21 37
SINCE SEP 1 38 59 -21 37
SINCE JAN 1 833 768 65 973
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 17 HIGHEST GUST DIRECTION E (100)
AVERAGE WIND SPEED 3.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 500 AM
LOWEST 37 400 PM
AVERAGE 67
......................................................
THE WILLIAMSPORT PA CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 90 1991
MINIMUM TEMPERATURE (F) 54 35 1959
SUNRISE AND SUNSET
SEPTEMBER 17 2025.....SUNRISE 650 AM EDT SUNSET 713 PM EDT
SEPTEMBER 18 2025.....SUNRISE 651 AM EDT SUNSET 711 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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