Rainiest Cities in Illinois

Top 100 cities ranked by rainiest cities

Best Cities For...

Composite rankings combining multiple weighted metrics, 5 topics across U.S. Census, FBI, NOAA and CDC data.

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All Countries  ·  United States  ·  Illinois

Rainiest Cities - Illinois

1 Metropolis 51.4"
2 Olney 48.8"
3 Mount Carmel 48.7"
4 Du Quoin 47.7"
5 Harrisburg 47.6"
6 Pinckneyville 46.6"
7 Benton 46.0"
8 Salem 45.9"
9 West Frankfort 45.9"
10 Troy 45.8"
11 Maryville 45.8"
12 Glen Carbon 45.8"
13 Edwardsville 45.8"
14 Marion 45.5"
15 Robinson 45.5"
16 Herrin 45.5"
17 Centralia 45.3"
18 Waterloo 45.1"
19 Mount Vernon 45.0"
20 Effingham 44.9"
21 Highland 44.5"
22 Carterville 44.0"
23 Carbondale 44.0"
24 Murphysboro 44.0"
25 Chester 43.9"
26 Vandalia 43.7"
27 Shiloh 43.4"
28 Belleville 43.4"
29 O'Fallon 43.4"
30 Swansea 43.4"
31 Mascoutah 43.4"
32 Danville 43.2"
33 Manteno 43.1"
34 Paris 42.7"
35 Pana 42.3"
36 Jerseyville 42.2"
37 Hillsboro 42.1"
38 Crete 42.1"
39 University Park 42.1"
40 Hazel Crest 42.1"
41 Tinley Park 42.1"
42 Park Forest 42.1"
43 Country Club Hills 42.1"
44 Markham 42.1"
45 Steger 42.1"
46 Homewood 42.1"
47 Frankfort Square 42.1"
48 Chicago Heights 42.1"
49 Matteson 42.1"
50 Richton Park 42.1"
51 Flossmoor 42.1"
52 Litchfield 42.0"
53 East Alton 41.9"
54 Bethalto 41.9"
55 Alton 41.9"
56 Wood River 41.9"
57 Taylorville 41.8"
58 Bradley 41.7"
59 Kankakee 41.7"
60 Greenville 41.6"
61 Jacksonville 41.4"
62 Orland Park 41.4"
63 Orland Hills 41.4"
64 Burr Ridge 41.4"
65 Darien 41.4"
66 Willow Springs 41.4"
67 Lemont 41.4"
68 Manhattan 41.3"
69 Frankfort 41.3"
70 Mokena 41.3"
71 New Lenox 41.3"
72 Bolingbrook 41.1"
73 Downers Grove 41.1"
74 Plainfield 41.1"
75 Romeoville 41.1"
76 Crest Hill 41.1"
77 Glen Ellyn 41.1"
78 Lockport 41.1"
79 Monee 41.1"
80 Homer Glen 41.1"
81 Hoopeston 40.9"
82 East St. Louis 40.8"
83 Columbia 40.8"
84 Pontoon Beach 40.8"
85 Clinton 40.8"
86 Cahokia Heights 40.8"
87 Fairview Heights 40.8"
88 Granite City 40.8"
89 Collinsville 40.8"
90 Dixon 40.5"
91 Inverness 40.4"
92 South Barrington 40.4"
93 Rantoul 40.4"
94 Barrington 40.4"
95 South Holland 40.3"
96 Lynwood 40.3"
97 Dolton 40.3"
98 Calumet City 40.3"
99 Glenwood 40.3"
100 Lansing 40.3"

The rainiest cities in Illinois receive the highest annual precipitation, creating lush green landscapes and abundant water resources. Metropolis leads with 51.4 inches of precipitation annually.

High rainfall supports diverse ecosystems, extensive park systems, and reliable water supplies. These cities often feature vibrant gardens, green spaces, and agricultural communities that benefit from consistent moisture throughout the year.

While abundant rainfall supports lush environments, it can also bring challenges including flooding risks, high humidity, and more frequent overcast days. Many rainy cities have adapted with robust drainage systems, covered public spaces, and a cultural embrace of indoor activities.

Did You Know?

  • 1. Metropolis receives 51.4" of precipitation annually - that's about 4.3 feet of water.
  • 2. The rainiest cities in the U.S. are primarily in the Southeast and Pacific Northwest, though for very different reasons - tropical moisture vs. marine influence.
  • 3. High rainfall areas tend to have lower wildfire risk and more reliable municipal water supplies.

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