Coldest Cities in Iowa.

Cities in Iowa with the lowest average winter temperatures, from 30-year averages at the nearest weather station.

#	City	Population	Avg Winter Low	Annual Snowfall
1	Spencer	11,400	10°F	43.3"
2	Mason City	27,050	11°F	44.4"
3	Fort Dodge	24,827	11°F	39"
4	Le Mars	10,640	11°F	30.9"
5	Sioux City	86,101	12°F	36"
6	Storm Lake	11,428	12°F	36.4"
7	Marshalltown	27,626	13°F	25.3"
8	Boone	12,424	13°F	35.9"
9	Ames	67,669	14°F	27.3"
10	Waterloo	67,008	14°F	39.1"
11	Dubuque	59,174	14°F	36.1"
12	Cedar Falls	40,888	14°F	39.1"
13	Newton	15,700	14°F	28.7"
14	Waverly	10,494	14°F	39.1"
15	Carroll	10,208	14°F	34.5"
16	Cedar Rapids	137,264	15°F	34.3"
17	Ankeny	72,615	15°F	24.7"
18	Altoona	21,495	15°F	24.7"
19	Indianola	16,044	15°F	30.8"
20	Oskaloosa	11,504	15°F	23.6"
21	Urbandale	46,595	16°F	38"
22	Marion	41,896	16°F	34.3"
23	Waukee	29,236	16°F	38"
24	Johnston	24,384	16°F	38"
25	Clive	19,012	16°F	38"
26	Grimes	16,366	16°F	38"
27	Pella	10,720	16°F	28.7"
28	Des Moines	212,421	17°F	36.5"
29	Davenport	100,913	17°F	36.1"
30	West Des Moines	71,083	17°F	36.5"
31	Bettendorf	39,647	17°F	36.1"
32	Ottumwa	25,430	17°F	23.6"
33	Muscatine	23,489	17°F	23.5"
34	Norwalk	14,183	17°F	36.5"
35	Pleasant Hill	11,136	17°F	36.5"
36	Iowa City	75,752	18°F	27.5"
37	Council Bluffs	62,586	18°F	27.1"
38	Clinton	24,322	18°F	31.9"
39	Burlington	23,728	18°F	21.8"
40	Coralville	23,234	18°F	27.5"
41	North Liberty	21,125	18°F	29.2"
42	Fort Madison	10,133	20°F	18.1"