Hottest Cities in Pennsylvania.

Cities in Pennsylvania with the highest average summer temperatures, from 30-year averages at the nearest weather station.

87 cities ranked · See the national list

#	City	Population	Avg Summer High	Hot Days/yr (90°F+)
1	Philadelphia	1,579,706	87°F	40
2	Ardmore	13,909	87°F	40
3	York	44,938	86°F	28
4	Norristown	35,893	86°F	39
5	Chester	33,619	86°F	27
6	Drexel Hill	30,451	86°F	30
7	King of Prussia	25,857	86°F	39
8	Phoenixville	19,452	86°F	29
9	Horsham	16,005	86°F	22
10	Willow Grove	14,131	86°F	22
11	Yeadon	12,181	86°F	30
12	Shiloh	11,246	86°F	28
13	Lansdowne	11,122	86°F	30
14	Darby	10,687	86°F	30
15	Broomall	10,679	86°F	39
16	Roslyn	10,639	86°F	22
17	Woodlyn	9,736	86°F	27
18	Lancaster	57,719	85°F	20
19	Hershey	14,242	85°F	22
20	Willow Street	9,647	85°F	20
21	Allentown	125,976	84°F	18
22	Reading	95,242	84°F	24
23	Bethlehem	77,956	84°F	18
24	Levittown	50,926	84°F	27
25	Monroeville	28,295	84°F	27
26	Williamsport	27,612	84°F	25
27	New Castle	21,579	84°F	21
28	Murrysville	20,817	84°F	27
29	West Chester	20,666	84°F	27
30	Lansdale	19,011	84°F	22
31	Fullerton	16,724	84°F	18
32	Franklin Park	15,235	84°F	20
33	Ephrata	13,772	84°F	18
34	Emmaus	11,889	84°F	18
35	Wyomissing	11,172	84°F	24
36	Northampton	10,400	84°F	18
37	Harrisburg	50,287	83°F	18
38	Easton	29,739	83°F	21
39	Chambersburg	22,319	83°F	19
40	Carlisle	21,852	83°F	24
41	Colonial Park	18,032	83°F	18
42	McKeesport	17,380	83°F	14
43	Hanover	16,584	83°F	18
44	Weigelstown	15,485	83°F	16
45	Montgomeryville	13,388	83°F	22
46	Pottsville	13,364	83°F	17
47	Coatesville	13,353	83°F	16
48	Elizabethtown	11,925	83°F	21
49	Progress	11,017	83°F	18
50	Columbia	10,278	83°F	21
51	Scranton	76,033	82°F	12
52	Wilkes-Barre	44,423	82°F	12
53	Lebanon	26,536	82°F	13
54	Pottstown	23,476	82°F	17
55	Dunmore	14,181	82°F	12
56	Wilkinsburg	14,027	82°F	14
57	Kingston	13,397	82°F	12
58	Washington	13,368	82°F	7
59	New Kensington	12,011	82°F	13
60	Lower Burrell	11,633	82°F	13
61	Munhall	10,548	82°F	14
62	Pittsburgh	304,759	81°F	8
63	Bethel Park	32,881	81°F	8
64	Plum	26,723	81°F	15
65	Allison Park	22,045	81°F	15
66	Baldwin	21,057	81°F	8
67	West Mifflin	19,190	81°F	8
68	Hermitage	16,041	81°F	6
69	Whitehall	14,811	81°F	8
70	Greensburg	14,741	81°F	6
71	Indiana	14,212	81°F	8
72	Carnot-Moon	13,534	81°F	10
73	Bloomsburg	13,024	81°F	10
74	Sharon	12,936	81°F	8
75	Jefferson Hills	12,317	81°F	8
76	Altoona	43,196	80°F	6
77	Butler	13,212	80°F	7
78	Erie	93,850	79°F	5
79	State College	41,050	79°F	6
80	Waynesboro	11,047	79°F	20
81	Hazleton	30,111	78°F	2
82	Meadville	12,577	78°F	2
83	Berwick	10,317	78°F	4
84	Johnstown	18,087	77°F	2
85	St. Marys	12,529	77°F	1
86	Mountain Top	11,850	77°F	4
87	Nanticoke	10,653	77°F	4

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