Flathead County, Montana Power Outages, 2015 to 2023

Flathead County, Montana had 24 major outages from 2015 to 2023

Above middle outage time among US counties

Residents here averaged 1.08 times the US outage time per person and 1.87 times the Montana rate. It ranks 7 of 34 in the state, where 1 has the most. Data confidence: High, with 9 years of records.

2.7major outages per year

7 of 9years with a major outage

104 hrslongest major outage

May, Novhardest months

May and November made up 51% of this county's outage time. The largest outage on record began May 31, 2020, reached 34,234 customers, and left at least 200 customers out for 61.8 hours.

Outage time per resident, rated Montana counties

MostLeast

Outage impact by year

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

0.25M

0.5M

0.75M

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

Show yearly numbers

Year	Customer-hours	Reported outages	Major outages
2015	203,352	65	3
2016	126,906	74	1
2017	212,348	74	4
2018	115,000	61	0
2019	83,676	38	2
2020	828,676	68	5
2021	508,816	54	5
2022	535,048	73	4
2023	120,886	78	0

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
May 31, 2020	61.8	34,234	524,892
Nov 3, 2022	69.5	10,817	318,394
Jan 13, 2021	104.2	10,795	303,721
Nov 16, 2021	44.0	6,546	98,845
Mar 13, 2020	59.5	4,709	84,324

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.

Look up another county

Counties ranked nearby

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.