Cold Wave Risk in Pennsylvania

All Pennsylvania counties ranked by FEMA National Risk Index cold wave score

Cold Wave risk — prolonged spells of dangerously low temperatures — is rated for 67 of 67 Pennsylvania counties in FEMA's National Risk Index. Philadelphia County carries the state's highest cold wave score at 99.8, with $57M in expected annual cold wave losses.

11 Pennsylvania counties are rated High or Very High for cold wave, and expected annual losses from cold wave total roughly $256M statewide. The full ranking below links to each county's complete 18-hazard risk profile.

County Rankings — Cold Wave

#CountyCold Wave ScoreRatingAnn. Freq.Ann. Loss
1 Philadelphia County
99.8
Very High 0.79 / yr $57M
2 Lehigh County
98.9
Very High 1.00 / yr $30M
3 Allegheny County
98.8
Very High 2.84 / yr $32M
4 Montgomery County
98.4
High 0.89 / yr $30M
5 Monroe County
95.1
High 3.21 / yr $12M
6 Luzerne County
94.7
High 2.79 / yr $9M
7 Berks County
93.2
High 1.00 / yr $9M
8 Delaware County
91.5
High 0.79 / yr $9M
9 Lancaster County
90.8
High 1.16 / yr $8M
10 Bucks County
90.8
High 0.89 / yr $9M
11 Lackawanna County
89.6
High 2.95 / yr $6M
12 Chester County
84.2
Medium 0.92 / yr $8M
13 Northampton County
83.8
Medium 1.00 / yr $5M
14 Schuylkill County
78.3
Medium 1.63 / yr $3M
15 Carbon County
76.7
Medium 3.21 / yr $3M
16 Pike County
76.6
Medium 3.00 / yr $3M
17 York County
74.1
Medium 1.16 / yr $3M
18 Cambria County
70.5
Medium 4.16 / yr $2M
19 Dauphin County
67.7
Medium 1.21 / yr $2M
20 Wayne County
63.2
Low 3.38 / yr $1M
21 Lebanon County
61.9
Low 1.16 / yr $2M
22 Indiana County
57.7
Low 3.53 / yr $1M
23 Clearfield County
57.4
Low 3.79 / yr $1M
24 Blair County
49.0
Low 1.84 / yr $814K
25 Northumberland County
47.9
Low 1.42 / yr $800K
26 Jefferson County
46.6
Low 3.84 / yr $587K
27 Cumberland County
42.1
Low 1.21 / yr $816K
28 Bradford County
41.2
Low 3.16 / yr $700K
29 McKean County
40.4
Low 4.16 / yr $567K
30 Erie County
38.9
Low 3.62 / yr $580K
31 Columbia County
38.8
Low 1.58 / yr $684K
32 Susquehanna County
37.9
Low 3.42 / yr $616K
33 Warren County
35.8
Low 3.89 / yr $507K
34 Clarion County
35.6
Low 3.84 / yr $479K
35 Lycoming County
32.9
Low 2.82 / yr $480K
36 Elk County
28.9
Low 4.00 / yr $424K
37 Wyoming County
27.6
Low 2.95 / yr $353K
38 Adams County
26.5
Low 1.16 / yr $363K
39 Greene County
25.3
Low 2.63 / yr $308K
40 Potter County
23.6
Very Low 4.16 / yr $242K
41 Mercer County
23.2
Very Low 3.63 / yr $255K
42 Crawford County
23.1
Very Low 3.47 / yr $212K
43 Centre County
22.3
Very Low 2.46 / yr $244K
44 Snyder County
22.3
Very Low 1.37 / yr $219K
45 Franklin County
20.8
Very Low 1.37 / yr $252K
46 Union County
20.8
Very Low 1.42 / yr $188K
47 Perry County
18.3
Very Low 1.21 / yr $203K
48 Mifflin County
17.9
Very Low 1.42 / yr $124K
49 Beaver County
16.8
Very Low 2.95 / yr $179K
50 Lawrence County
16.4
Very Low 3.32 / yr $164K
51 Butler County
15.5
Very Low 3.26 / yr $187K
52 Montour County
15.1
Very Low 1.42 / yr $141K
53 Westmoreland County
14.9
Very Low 3.44 / yr $164K
54 Tioga County
14.4
Very Low 3.74 / yr $127K
55 Forest County
13.4
Very Low 3.84 / yr $89K
56 Juniata County
13.3
Very Low 1.32 / yr $93K
57 Somerset County
11.7
Very Low 4.11 / yr $95K
58 Sullivan County
10.7
Very Low 3.74 / yr $68K
59 Cameron County
10.6
Very Low 4.00 / yr $63K
60 Venango County
10.1
Very Low 3.68 / yr $64K
61 Clinton County
9.6
Very Low 3.12 / yr $57K
62 Armstrong County
9.4
Very Low 3.37 / yr $67K
63 Huntingdon County
8.7
Very Low 1.58 / yr $59K
64 Fayette County
8.5
Very Low 3.57 / yr $46K
65 Washington County
8.3
Very Low 2.84 / yr $65K
66 Bedford County
8.0
Very Low 1.84 / yr $48K
67 Fulton County
5.6
Very Low 1.47 / yr $24K

67 Pennsylvania counties with measurable cold wave risk. See the national cold wave ranking or all Pennsylvania counties by overall risk.

Frequently Asked Questions

Which Pennsylvania county has the highest cold wave risk?

Philadelphia County has the highest FEMA cold wave risk score in Pennsylvania at 99.8 (Very High), with $57M in expected annual losses and about 0.79 events per year.

How many Pennsylvania counties face significant cold wave risk?

67 Pennsylvania counties record measurable cold wave risk in FEMA's National Risk Index; 11 of them are rated High or Very High.

Other Hazards in Pennsylvania