massoutage

County annual report · FIPS 55037

2019 Florence County, WI Power Outage Report

In 2019, customers in Florence County, WI went without power for an average of 16.0 hours, a total of 46K customer-hours (Wisconsin average 4.4 hours). That ranks 11th worst of 71 Wisconsin counties and 298th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
16.0
2,842 customers
Customer-hours out
46K
Peak customers out
3,370
Outages ≥1,000 out
1
0 of 10,000+ · 153 total
Longest outage
2d 17h
began November 27, 2019
Rank in state
11th/71
298th of 2,945 US

Compared with WI, the US and 2018

Florence County, WI average hours without power per customer compared with state and national averages, 2019Florence County 16.0 hours, Wisconsin average 4.4 hours, US average 4.7 hours, Florence County, 2018 8.9 hoursFlorence CountyFlorence County16.0hWisconsin averageWisconsin average4.4hUS averageUS average4.7hFlorence County, 2018Florence County, 20188.9h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Florence County, WI customer-hours without power by month, 2019Jan 8, Feb 2,728, Mar 1,137, Apr 774, May 1,199, Jun 1,289, Jul 2,797, Aug 177, Sep 922, Oct 388, Nov 32K, Dec 2,045010k20k30k40k8Jan2,728Feb1,137Mar774Apr1,199May1,289Jun2,797Jul177Aug922Sep388Oct32KNov2,045Dec
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Customer-hours; November was the worst month.

Florence County year over year

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Florence County, WI: average hours without power per customer by year2015: 5.5h; 2016: 6.1h; 2017: 38.4h; 2018: 8.9h, coverage 83%; 2019: 16.0h, coverage 84%; 2020: 8.1h, coverage 84%; 2021: 13.5h, coverage 85%; 2022: 15.6h, coverage 85%; 2023: 5.2h; 2024: 6.3h; 2025: 37.1h0102030400%50%100%5.5h20156.1h201638.4h20178.9h201816.0h20198.1h202013.5h202115.6h20225.2h20236.3h202437.1h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.

Biggest outages in Florence County, 2019

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 27, 2019 11:15November 30, 2019 04:452d 17h3,37032K
2December 7, 2019 11:30December 7, 2019 11:4515m535134
3December 15, 2019 17:00December 15, 2019 18:301h 30m535803
4September 25, 2019 20:45September 25, 2019 23:302h 45m534676
5July 20, 2019 00:30July 20, 2019 22:1521h 45m4332,496
6February 4, 2019 16:15February 5, 2019 01:008h 45m3541,059
7June 25, 2019 05:45June 25, 2019 09:003h 15m330909
8April 16, 2019 11:45April 16, 2019 14:302h 45m282443
9April 16, 2019 17:45April 16, 2019 20:002h 15m259249
10March 1, 2019 16:15March 1, 2019 17:151h196196

Outage episodes by size in 2019: 13 reached 100+ customers, 1 reached 1,000+ customers, 0 reached 10,000+ customers.

Utility reliability filed with the EIA

SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Florence County reported on EIA Form 861 for 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20182.0 hrs0.7370 min0.59
Wisconsin Public Service Corp20182.0 hrs0.971.8 hrs0.94
Florence Utility Comm201845 min0.4445 min0.44

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 84% of Wisconsin's customers in 2019; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,842 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
  • An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
  • Years loaded: 2015–2025. Florence County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Florence County, WI annual power outage report, 2019, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2019/wisconsin/florence-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON