Ranked from NOAA 1991-2020 Climate Normals
Driest Counties in Illinois
The least rainfall in the country. Dry is easier on a building than wet, but it moves the cost somewhere else: irrigation, foundation movement in shrink-swell soils, and in the driest counties the price and reliability of water itself. Figures are NOAA 1991-2020 Climate Normals from the weather station nearest each county seat, so they describe a thirty-year average rather than any single year.
Where does yours land?
Every county in America is somewhere on this scale, including the one you live in.
Illinois ranked
| # | County | Annual rainfall | FEMA risk rating | Median home |
|---|---|---|---|---|
| 1 | Cook County | 33.2" | Very High | $305,200 |
| 2 | Kane County | 33.2" | Relatively High | $303,000 |
| 3 | Kendall County | 33.8" | Relatively Low | $298,900 |
| 4 | Coles County | 36.0" | Relatively Low | $121,900 |
| 5 | Cumberland County | 36.0" | Very Low | $117,700 |
| 6 | LaSalle County | 36.2" | Relatively Moderate | $154,900 |
| 7 | De Witt County | 36.4" | Very Low | $124,200 |
| 8 | Adams County | 36.4" | Relatively Low | $155,900 |
| 9 | Livingston County | 37.0" | Relatively Low | $131,500 |
| 10 | Champaign County | 37.0" | Relatively Moderate | $205,100 |
| 11 | Boone County | 37.2" | Relatively Low | $198,600 |
| 12 | Lee County | 37.2" | Relatively Low | $155,100 |
| 13 | Ogle County | 37.2" | Relatively Low | $184,100 |
| 14 | Winnebago County | 37.2" | Relatively Moderate | $155,100 |
| 15 | DeKalb County | 37.3" | Relatively Low | $231,900 |
| 16 | Woodford County | 37.5" | Very Low | $193,800 |
| 17 | Peoria County | 37.5" | Relatively Moderate | $152,600 |
| 18 | Tazewell County | 37.5" | Relatively Moderate | $164,500 |
| 19 | Menard County | 37.6" | Very Low | $179,300 |
| 20 | Henderson County | 37.9" | Very Low | $101,600 |
| 21 | Will County | 38.0" | Relatively High | $298,000 |
| 22 | Cass County | 38.0" | Very Low | $95,500 |
| 23 | Christian County | 38.1" | Relatively Low | $112,100 |
| 24 | Rock Island County | 38.3" | Relatively Moderate | $144,700 |
| 25 | Whiteside County | 38.3" | Relatively Low | $125,800 |
| 26 | Stephenson County | 38.4" | Relatively Low | $127,500 |
| 27 | Marshall County | 38.4" | Very Low | $137,800 |
| 28 | Iroquois County | 38.4" | Relatively Low | $125,400 |
| 29 | McDonough County | 38.5" | Very Low | $103,500 |
| 30 | Putnam County | 38.6" | Very Low | $167,800 |
| 31 | Grundy County | 38.8" | Relatively Low | $259,200 |
| 32 | Brown County | 39.1" | Very Low | $142,200 |
| 33 | Henry County | 39.1" | Relatively Low | $145,300 |
| 34 | Mercer County | 39.1" | Very Low | $139,300 |
| 35 | Morgan County | 39.3" | Relatively Low | $128,700 |
| 36 | Jo Daviess County | 39.4" | Relatively Low | $193,900 |
| 37 | McHenry County | 39.4" | Relatively Moderate | $286,900 |
| 38 | McLean County | 39.4" | Relatively Moderate | $198,300 |
| 39 | Warren County | 39.4" | Very Low | $101,300 |
| 40 | Lake County | 39.5" | Relatively High | $326,600 |
| 41 | Greene County | 39.6" | Very Low | $94,400 |
| 42 | Stark County | 39.6" | Very Low | $103,500 |
| 43 | Piatt County | 39.6" | Very Low | $173,200 |
| 44 | Bureau County | 39.8" | Relatively Low | $121,900 |
| 45 | Logan County | 39.8" | Relatively Low | $125,900 |
| 46 | Macoupin County | 40.0" | Relatively Low | $126,100 |
| 47 | Hancock County | 40.1" | Very Low | $108,400 |
| 48 | DuPage County | 40.2" | Relatively High | $374,100 |
| 49 | Carroll County | 40.3" | Very Low | $113,500 |
| 50 | Ford County | 40.4" | Very Low | $118,100 |
| 51 | Scott County | 40.4" | Very Low | $101,700 |
| 52 | Macon County | 40.4" | Relatively Moderate | $121,800 |
| 53 | Sangamon County | 40.5" | Relatively Moderate | $170,300 |
| 54 | Knox County | 40.5" | Relatively Low | $104,900 |
| 55 | Pike County | 40.5" | Very Low | $100,100 |
| 56 | Douglas County | 40.5" | Relatively Low | $142,600 |
| 57 | Monroe County | 40.8" | Very Low | $265,600 |
| 58 | Schuyler County | 40.9" | Very Low | $106,200 |
| 59 | Fulton County | 41.0" | Relatively Low | $102,500 |
| 60 | Mason County | 41.0" | Relatively Low | $106,100 |
| 61 | Fayette County | 41.2" | Relatively Low | $114,700 |
| 62 | Calhoun County | 41.3" | Very Low | $174,000 |
| 63 | Shelby County | 41.4" | Relatively Low | $130,400 |
| 64 | Moultrie County | 41.6" | Relatively Low | $121,500 |
| 65 | Kankakee County | 41.7" | Relatively Moderate | $185,700 |
| 66 | Montgomery County | 42.1" | Relatively Low | $102,200 |
| 67 | Jersey County | 42.2" | Very Low | $168,800 |
| 68 | Washington County | 42.2" | Relatively Low | $149,800 |
| 69 | Edgar County | 42.7" | Very Low | $95,700 |
| 70 | Vermilion County | 43.2" | Relatively Low | $92,900 |
| 71 | Bond County | 43.4" | Very Low | $133,100 |
| 72 | Madison County | 43.4" | Relatively Moderate | $167,900 |
| 73 | St. Clair County | 43.4" | Relatively High | $168,800 |
| 74 | Effingham County | 44.0" | Relatively Low | $179,800 |
| 75 | Franklin County | 44.0" | Relatively Low | $87,700 |
| 76 | Jackson County | 44.0" | Relatively Moderate | $125,000 |
| 77 | Perry County | 44.0" | Relatively Low | $105,200 |
| 78 | Williamson County | 44.0" | Relatively Moderate | $145,600 |
| 79 | Jefferson County | 45.0" | Relatively Low | $118,400 |
| 80 | Crawford County | 45.5" | Very Low | $113,700 |
| 81 | Clark County | 45.5" | Very Low | $123,100 |
| 82 | Randolph County | 45.6" | Relatively Low | $134,100 |
| 83 | Clinton County | 45.9" | Relatively Low | $180,500 |
| 84 | Marion County | 45.9" | Relatively Low | $100,100 |
| 85 | Edwards County | 46.0" | Very Low | $97,500 |
| 86 | Wayne County | 46.0" | Very Low | $109,400 |
| 87 | Jasper County | 46.0" | Very Low | $122,900 |
| 88 | Lawrence County | 46.6" | Relatively Low | $95,500 |
| 89 | Hamilton County | 47.1" | Very Low | $108,800 |
| 90 | Saline County | 47.6" | Relatively Low | $92,900 |
| 91 | Alexander County | 47.9" | Relatively Low | $58,700 |
| 92 | Clay County | 48.0" | Very Low | $94,300 |
| 93 | Gallatin County | 48.2" | Very Low | $84,700 |
| 94 | White County | 48.3" | Relatively Low | $100,100 |
| 95 | Wabash County | 48.7" | Very Low | $103,900 |
| 96 | Richland County | 48.8" | Relatively Low | $106,600 |
| 97 | Pulaski County | 49.4" | Relatively Low | $81,000 |
| 98 | Massac County | 50.3" | Relatively Low | $118,000 |
| 99 | Johnson County | 50.5" | Relatively Low | $148,200 |
| 100 | Pope County | 50.5" | Very Low | $165,300 |
| 101 | Hardin County | 50.9" | Very Low | $91,700 |
| 102 | Union County | 51.1" | Relatively Low | $131,700 |
Every figure is modelled on the county's own median home with 20% down at 7.03%. Property tax and electricity are county and state specific; homeowners insurance uses the NAIC average premium for that state, which ranges from 0.16% of home value in Hawaii to 1.16% in Oklahoma. Maintenance and water are national estimates. Full methodology.
Nationwide
Driest Counties across all 3,133 US counties · Every county in Illinois