massoutage

County annual report · FIPS 36049

2023 Lewis County, NY Power Outage Report

In 2023, customers in Lewis County, NY went without power for an average of 4.4 hours, a total of 56K customer-hours (New York average 2.2 hours). That ranks 23rd worst of 62 New York counties and 1581st of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
4.4
12,631 customers
Customer-hours out
56K
Peak customers out
6,396
Outages ≥1,000 out
7
0 of 10,000+ · 305 total
Longest outage
1d 6h
began November 21, 2023
Rank in state
23rd/62
1581st of 2,977 US

Compared with NY, the US and 2022

Lewis County, NY average hours without power per customer compared with state and national averages, 2023Lewis County 4.4 hours, New York average 2.2 hours, US average 7.1 hours, Lewis County, 2022 7.8 hoursLewis CountyLewis County4.4hNew York averageNew York average2.2hUS averageUS average7.1hLewis County, 2022Lewis County, 20227.8h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Lewis County, NY customer-hours without power by month, 2023Jan 229, Feb 1,041, Mar 3,477, Apr 4,212, May 8,063, Jun 5,790, Jul 10K, Aug 17K, Sep 421, Oct 967, Nov 2,727, Dec 1,24705k10k15k20k229Jan1,041Feb3,477Mar4,212Apr8,063May5,790Jun10KJul17KAug421Sep967Oct2,727Nov1,247Dec
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Customer-hours; August was the worst month.

Lewis County year over year

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Lewis County, NY: average hours without power per customer by year2015: 4.9h; 2016: 4.4h; 2017: 6.2h; 2018: 13.7h, coverage 98%; 2019: 8.0h, coverage 98%; 2020: 4.6h, coverage 99%; 2021: 15.6h, coverage 99%; 2022: 7.8h, coverage 99%; 2023: 4.4h; 2024: 16.3h; 2025: 4.8h051015200%50%100%4.9h20154.4h20166.2h201713.7h20188.0h20194.6h202015.6h20217.8h20224.4h202316.3h20244.8h2025
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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 New York customers tracked each year.

Biggest outages in Lewis County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 8, 2023 00:15August 8, 2023 16:0015h 45m6,39612K
2May 16, 2023 18:30May 17, 2023 00:155h 45m1,5436,127
3April 22, 2023 16:45April 23, 2023 05:1512h 30m1,4512,682
4November 28, 2023 17:30November 28, 2023 21:454h 15m1,077379
5July 4, 2023 03:00July 4, 2023 10:007h1,0475,514
6July 12, 2023 00:00July 12, 2023 04:004h1,0441,053
7April 2, 2023 02:30April 2, 2023 03:301h1,0371,037
8August 12, 2023 23:45August 13, 2023 08:308h 45m809726
9August 8, 2023 19:00August 8, 2023 22:153h 15m7821,566
10July 24, 2023 21:15July 25, 2023 04:157h758928

Outage episodes by size in 2023: 34 reached 100+ customers, 7 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 Lewis County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
New York State Elec & Gas Corp20164.5 hrs1.563.6 hrs1.47
Niagara Mohawk Power Corp.20233.5 hrs1.142.2 hrs0.98
Village of Boonville - (NY)-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of New York's customers in 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 12,631 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. Lewis County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Lewis County, NY annual power outage report, 2023, 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/2023/new-york/lewis-county

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