Montana Power Outages by County

Montana averaged 0.58 times the US outage time per person

That ranks 32 of 50 states and DC, where 1 has the most. November and January made up 27% of outage time. Records run from 2015 to 2023, and some counties start later.

Madison County had the most outage time per resident of 34 rated counties.

Counties ranked by outage time

Rank	County	Major outages per year	Longest (hours)	Times US rate
1	Madison County	1.0	16	2.38
2	Mineral County	1.2	22	2.33
3	Sanders County	1.1	86	1.84
4	Lincoln County	2.2	82	1.61
5	Chouteau County	0.8	18	1.41
6	Teton County	0.8	14	1.25
7	Flathead County	2.7	104	1.08
8	Valley County	0.4	15	1.02
9	Carbon County	1.0	14	0.89
10	Blaine County	0.0	None	0.76
11	Powell County	0.5	28	0.75
12	Cascade County	1.8	28	0.73
13	Deer Lodge County	0.0	None	0.71
13	Hill County	0.5	10	0.71
15	Fergus County	0.8	48	0.68
16	Beaverhead County	0.0	None	0.65
16	Pondera County	0.2	8	0.65
18	Richland County	0.3	11	0.58
19	Rosebud County	0.3	8	0.57
20	Lewis and Clark County	0.8	16	0.56
21	Musselshell County	0.5	18	0.49
22	Silver Bow County	0.2	22	0.47
23	Lake County	1.0	59	0.36
23	Park County	1.2	15	0.36
25	Gallatin County	1.0	45	0.34
26	Missoula County	1.0	25	0.31
27	Stillwater County	0.0	None	0.28
28	Broadwater County	0.0	None	0.25
28	Ravalli County	1.2	13	0.25
28	Yellowstone County	1.5	21	0.25
31	Dawson County	0.0	None	0.19
31	Jefferson County	0.0	None	0.19
33	Custer County	0.0	None	0.17
34	Roosevelt County	0.0	None	0.15

Rank uses outage time per resident. Times US rate compares each county with the national average.

When outages hit Montana

Share of the state's customer-hours by month.

0%

5%

10%

15%

20%

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD

Not rated

These counties have short histories, very small populations, or customer counts that look too high for the population.

Montana averaged 0.58 times the US outage time per person

Counties ranked by outage time

When outages hit Montana

Not rated

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