Pennsylvania December Weather

Pennsylvania weather averages and all-time records in the month of December from 1991–2020 based on data made available by the NOAA.

State:

Month:

Statewide December Averages
High temperature	39.2 °F
Low temperature	24.1 °F
Precipitation	3.5 inches

Pennsylvania Cities

December weather averages for various places in Pennsylvania, from 1991–2020.

City	Average (°F)		Record (°F)		Monthly (inches)
City	High	Low	High	Low	Precipitation	Snow
Allentown	42.2	26.1	72	-9	3.9	5.3
Altoona	39.5	25.8	74	-13	2.6	n/a
Bradford	35.2	19.8	68	-22	4.1	19.6
Chambersburg	42.1	27.3	75	-13	3.4	5.7
Donora	43.6	27.0	77	-11	2.9	3.5
Dubois	35.8	23.2	72	-14	3.1	n/a
East Stroudsburg	41.0	25.2	72	-14	4.5	8.1
Erie	39.3	28.1	75	-6	4.1	26.2
Franklin	38.6	23.9	74	-14	3.4	11.6
Harrisburg	43.0	28.2	75	-8	3.4	4.6
Kane	34.3	19.4	70	-26	4.0	21.7
Lancaster	43.4	27.5	76	-9	3.5	3.1
Lewistown	41.3	26.3	75	-16	3.3	4.7
Philadelphia	46.0	31.9	73	-7	4.0	3.6
Phoenixville	45.2	26.7	77	-8	4.1	n/a
Pittsburgh	40.9	26.8	74	-12	2.8	8.3
Reading	43.0	27.8	77	-6	3.6	4.4
Ridgway	37.5	21.7	73	-24	3.4	11.1
Selinsgrove	40.2	24.9	73	-16	3.2	4.3
Shippensburg	42.0	27.0	75	-8	3.4	5.4
State College	38.9	25.8	71	-13	3.2	7.6
Titusville	37.4	21.2	72	-22	3.7	20.5
Warren	37.2	24.3	74	-22	3.8	17.2
Waynesburg	42.8	24.7	77	-16	3.3	5.1
Wilkes-Barre	39.2	25.7	71	-15	2.8	8.1
Williamsport	39.9	25.7	70	-15	3.3	7.4
York	43.9	25.4	77	-11	3.2	n/a