Rockingham County, New Hampshire Power Outages, 2015 to 2023

Rockingham County, New Hampshire had 36 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 1.18 times the US outage time per person and 0.93 times the New Hampshire rate. It ranks 8 of 10 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

4.0major outages per year

9 of 9years with a major outage

116 hrslongest major outage

Oct, Marhardest months

October and March made up 54% of this county's outage time. The largest outage on record began Oct 30, 2017, reached 80,811 customers, and left at least 200 customers out for 116.0 hours.

Outage time per resident, rated New Hampshire counties

MostLeast

Outage impact by year

Customer-hours without power. 1,000 customers out for 2 hours is 2,000 customer-hours.

2015'152016'162017'172018'182019'192020'202021'212022'222023'23

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	191,440	177	1
2016	592,854	211	6
2017	3,051,154	184	6
2018	874,625	145	5
2019	396,017	93	3
2020	863,814	144	4
2021	465,059	131	4
2022	843,781	142	2
2023	1,063,729	129	5

When outages hit

Share of this county's customer-hours by month.

10%

20%

30%

40%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Largest outages on record

Start date	Hours	Peak customers	Customer-hours
Oct 30, 2017	116.0	80,811	2,205,098
Dec 23, 2022	82.2	35,505	637,480
Mar 14, 2017	28.5	54,648	538,656
Mar 8, 2018	65.0	29,794	537,278
Jan 23, 2023	67.2	21,774	440,114

Hours measure how long at least 200 customers in the county were out. Most customers get power back sooner.

Size your backup battery

Start with what you would keep running. Wattages are typical averages, so check your own appliances.

Phones, Wi-Fi, lights, about 60 WRefrigerator, about 60 WChest freezer, about 40 WGas furnace fan, about 160 W

Hours to cover: 24

1,700 Whof battery capacity, allowing for about 15% conversion loss

If anyone relies on medical equipment, plan that with their provider. Run portable fuel generators outdoors only, at least 20 feet from doors, windows and vents. See the outage checklist.

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How to read this

A major outage lasted at least 8 hours and reached customers equal to at least 1% of county residents.
Records cover outages of at least 200 customers in a county. They do not show what happened on your street.
Utilities that do not report can make a county look better than it is. Data ends in 2023. Read the full method.