massoutage

2019 Illinois Power Outage Report

In 2019, the average Illinois customer went without power for about 1.8 hours, the 43rd worst of 51 states (US average 4.6 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.

Avg hrs / customer
1.8
vs prior year
▼ 26%
vs 2018
Customer-hours out
10.9M
Peak customers out
110,458
across the state at once
EAGLE-I coverage
99%
of IL customers
Counties reporting
102

Illinois year over year

Illinois: average hours without power per customer by year2015: 2.3h; 2016: 1.5h; 2017: 1.4h; 2018: 2.5h, coverage 92%; 2019: 1.8h, coverage 99%; 2020: 5.9h, coverage 94%; 2021: 2.3h, coverage 98%; 2022: 1.6h, coverage 98%; 2023: 4.0h; 2024: 3.0h; 2025: 2.5h02460%50%100%2.3h20151.5h20161.4h20172.5h20181.8h20195.9h20202.3h20211.6h20224.0h20233.0h20242.5h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Month by month, 2019

Customer-hours without power across Illinois; July was the worst.

CSVJSON
Illinois customer-hours without power by month, 2019Jan 567K, Feb 1.4M, Mar 538K, Apr 533K, May 1.1M, Jun 1.5M, Jul 1.7M, Aug 897K, Sep 863K, Oct 707K, Nov 695K, Dec 335K0500k1M1.5M2M567KJan1.4MFeb538KMar533KApr1.1MMay1.5MJun1.7MJul897KAug863KSep707KOct695KNov335KDec
Use the arrow keys to read values.

All 102 Illinois counties, 2019

Ranked by average hours without power per customer. Each county links to its annual report.

CSVJSON
#CountyHrs / customerCustomer-hoursCustomersPeak outEvents
1Scott County37.681K2,1632,163337
2Stark County15.047K3,1732,204211
3Jefferson County12.9292K22,6704,683855
4Mercer County11.4102K8,9726,907517
5Warren County8.772K8,2442,374494
6Jo Daviess County8.531K3,6173,617163
7Pike County8.457K6,7931,481560
8Iroquois County8.181K10,0385,566535
9Putnam County7.418K2,5011,571187
10Henderson County7.325K3,3811,414215
11Franklin County7.2139K19,2605,056838
12Knox County7.1185K25,9986,846745
13Pulaski County6.420K3,2121,576144
14Gallatin County6.215K2,4532,104347
15Pope County6.211K1,8421,038222
16Bureau County5.8108K18,6423,667531
17Fayette County5.641K7,2951,688517
18Stephenson County5.365K12,2484,937448
19Hardin County5.310K1,910914355
20Logan County5.358K10,8992,811506
21Alexander County4.914K2,84278178
22Kankakee County4.8415K85,55017,728827
23Washington County4.835K7,3181,654690
24Montgomery County4.849K10,3441,871530
25Calhoun County4.88,8771,8651,121117
26Ford County4.726K5,4622,171386
27Clinton County4.657K12,4652,433408
28Schuyler County4.412K2,847912144
29Piatt County4.226K6,1482,236315
30Lee County4.2108K25,6655,849476
31Bond County3.922K5,7361,324382
32Marshall County3.931K7,9062,746339
33Brown County3.811K3,0071,87698
34De Witt County3.524K6,6652,117245
35Williamson County3.5126K35,6247,719815
36Vermilion County3.5163K46,3734,844865
37Hancock County3.532K9,0101,521370
38Macoupin County3.250K15,4533,504549
39Morgan County3.253K16,5223,239545
40Mason County3.215K4,8471,166264
41Johnson County3.221K6,5001,279307
42LaSalle County3.0191K63,0173,445845
43McHenry County3.0362K120,38110,378863
44Carroll County3.022K7,336677162
45Jersey County3.023K7,7181,621223
46Menard County2.912K4,1672,010168
47Macon County2.9130K45,0514,689905
48Randolph County2.842K14,9703,575629
49Winnebago County2.7324K120,7898,795924
50Douglas County2.622K8,3331,709343
51Greene County2.614K5,2001,023180
52Shelby County2.615K5,7081,743242
53Kane County2.6326K127,85010,893954
54Lawrence County2.519K7,7962,150238
55Whiteside County2.5109K44,0261,765504
56Peoria County2.5340K137,5185,271797
57St. Clair County2.4227K94,3555,379658
58Champaign County2.4215K90,0358,370898
59Clay County2.321K9,0852,421321
60Jackson County2.258K26,6161,730655
61Woodford County2.253K24,0802,033483
62Saline County2.228K12,9673,297564
63Madison County2.1227K107,8555,574790
64Fulton County2.026K12,9401,951441
65Ogle County1.980K42,0291,471468
66DuPage County1.9596K313,75114,644803
67Jasper County1.88,2174,528591112
68Rock Island County1.8152K83,6854,669891
69Perry County1.822K11,9751,506391
70Edwards County1.87,2194,061962158
71Marion County1.727K15,234787531
72Henry County1.771K40,9781,508515
73Tazewell County1.7139K80,8784,413817
74Massac County1.714K8,1751,31287
75McDonough County1.721K12,7451,313308
76Livingston County1.641K25,1913,062537
77Grundy County1.669K43,4333,164536
78Will County1.6472K299,46816,079696
79DeKalb County1.5122K79,6823,209632
80Union County1.515K10,2774,677191
81Boone County1.531K20,9792,382431
82Effingham County1.421K14,8301,192392
83Adams County1.446K31,7603,603634
84Christian County1.419K13,660987420
85Monroe County1.422K15,588625299
86Kendall County1.4125K92,75116,524574
87Crawford County1.314K10,2201,099284
88McLean County1.3107K81,8604,410862
89Cook County1.22.5M2,162,00714,682172
90Clark County1.18,2917,829802214
91Hamilton County1.04,7134,619351134
92Coles County0.922K24,4551,471462
93Cass County0.95,2516,0871,258176
94Lake County0.8449K581,00811,117872
95Cumberland County0.83,7844,929870102
96Edgar County0.76,1638,690918290
97White County0.65,8298,994641139
98Moultrie County0.53,5006,492558118
99Sangamon County0.573K138,4753,178596
100Richland County0.43,7649,109764242
101Wayne County0.44,16710,40441768
102Wabash County0.11,1459,76026668

Biggest Illinois outages of 2019

Up to 25 county outage episodes with the most customers out at once.

CSVJSON
#CountyStarted (UTC)Ended (UTC)DurationPeak outCustomer-hours
1Kankakee County, ILJune 30, 2019 20:45July 4, 2019 04:003d 7h17,728324K
2Kendall County, ILMarch 28, 2019 02:00March 28, 2019 06:004h16,52413K
3Will County, ILJune 30, 2019 13:30July 4, 2019 10:003d 20h16,079110K
4Cook County, ILJune 23, 2019 09:30July 5, 2019 08:0011d 22h14,682245K
5DuPage County, ILJune 30, 2019 02:30July 4, 2019 05:304d 3h14,644122K
6DuPage County, ILDecember 9, 2019 22:45December 10, 2019 03:154h 30m13,26817K
7Cook County, ILAugust 11, 2019 09:00August 19, 2019 10:008d 1h12,329109K
8Cook County, ILNovember 26, 2019 09:00November 29, 2019 03:002d 18h12,117101K
9Lake County, ILAugust 18, 2019 13:30August 21, 2019 00:302d 11h11,11760K
10Kane County, ILJune 30, 2019 18:30July 4, 2019 14:303d 20h10,893118K
11Cook County, ILJanuary 29, 2019 12:30February 4, 2019 07:005d 18h10,54090K
12McHenry County, ILJune 30, 2019 18:30July 4, 2019 08:003d 13h10,378129K
13DuPage County, ILOctober 30, 2019 10:30November 1, 2019 05:001d 18h10,10355K
14Cook County, ILMay 27, 2019 08:00June 7, 2019 07:3010d 23h9,994126K
15Cook County, ILOctober 28, 2019 11:45November 7, 2019 09:309d 21h9,557119K
16Winnebago County, ILJune 30, 2019 18:00July 4, 2019 03:003d 9h8,795102K
17Champaign County, ILJune 30, 2019 21:00July 2, 2019 09:301d 12h8,37040K
18Winnebago County, ILJuly 20, 2019 16:00July 22, 2019 03:001d 11h7,73745K
19Williamson County, ILMarch 24, 2019 02:00March 24, 2019 05:453h 45m7,71912K
20Cook County, ILSeptember 3, 2019 10:00September 6, 2019 10:303d7,45939K
21Lake County, ILJune 30, 2019 17:00July 3, 2019 22:003d 5h7,37681K
22Cook County, ILFebruary 10, 2019 09:00February 17, 2019 05:006d 20h7,33580K
23Mercer County, ILFebruary 12, 2019 02:15February 14, 2019 22:302d 20h6,90743K
24Knox County, ILJune 27, 2019 01:00June 27, 2019 19:0018h6,84617K
25Cook County, ILFebruary 23, 2019 10:30February 26, 2019 11:303d 1h6,83079K
EAGLE-I tracked about 99% of Illinois's electricity customers in 2019; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Other states in 2019:WVMINCLACAVTVAAR

Part of the 2019 US Power Outage Report.

Data from DOE EAGLE-I, every source we read.