massoutage

County annual report · FIPS 36075

2020 Oswego County, NY Power Outage Report

In 2020, customers in Oswego County, NY went without power for an average of 2.5 hours, a total of 146K customer-hours (New York average 10.4 hours). That ranks 48th worst of 62 New York counties and 2041st of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
2.5
57,759 customers
Customer-hours out
146K
Peak customers out
9,149
Outages ≥1,000 out
24
0 of 10,000+ · 665 total
Longest outage
1d 6h
began November 15, 2020
Rank in state
48th/62
2041st of 3,019 US

Compared with NY, the US and 2019

Oswego County, NY average hours without power per customer compared with state and national averages, 2020Oswego County 2.5 hours, New York average 10.4 hours, US average 8.7 hours, Oswego County, 2019 4.6 hoursOswego CountyOswego County2.5hNew York averageNew York average10.4hUS averageUS average8.7hOswego County, 2019Oswego County, 20194.6h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Oswego County, NY customer-hours without power by month, 2020Jan 4,921, Feb 5,575, Mar 9,747, Apr 12K, May 8,243, Jun 6,058, Jul 32K, Aug 19K, Sep 8,451, Oct 26K, Nov 12K, Dec 2,797010k20k30k40k4,921Jan5,575Feb9,747Mar12KApr8,243May6,058Jun32KJul19KAug8,451Sep26KOct12KNov2,797Dec
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Customer-hours; July was the worst month.

Oswego County year over year

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Oswego County, NY: average hours without power per customer by year2015: 3.9h; 2016: 3.9h; 2017: 4.3h; 2018: 10.1h, coverage 98%; 2019: 4.6h, coverage 98%; 2020: 2.5h, coverage 99%; 2021: 6.2h, coverage 99%; 2022: 5.4h, coverage 99%; 2023: 3.2h; 2024: 6.4h; 2025: 5.8h0510150%50%100%3.9h20153.9h20164.3h201710.1h20184.6h20192.5h20206.2h20215.4h20223.2h20236.4h20245.8h2025
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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 Oswego County, 2020

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 20, 2020 18:45October 20, 2020 20:301h 45m9,1492,638
2July 9, 2020 18:15July 10, 2020 22:451d 4h4,93917K
3April 7, 2020 15:45April 7, 2020 18:453h3,9407,067
4July 13, 2020 10:30July 13, 2020 11:451h 15m3,7832,729
5August 29, 2020 21:15August 30, 2020 08:4511h 30m3,2486,837
6October 7, 2020 17:45October 8, 2020 23:451d 6h3,23615K
7November 7, 2020 04:00November 7, 2020 05:151h 15m2,1301,066
8October 13, 2020 10:15October 13, 2020 15:455h 30m2,0092,020
9August 17, 2020 16:45August 18, 2020 16:0023h 15m1,9685,199
10March 20, 2020 18:15March 20, 2020 23:004h 45m1,8582,174

Outage episodes by size in 2020: 92 reached 100+ customers, 24 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 Oswego County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Niagara Mohawk Power Corp.20207.6 hrs1.502.4 hrs1.09

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of New York's customers in 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 57,759 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. Oswego County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Oswego County, NY annual power outage report, 2020, 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/2020/new-york/oswego-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON