Bozeman, Montana Power Outage Today

How reliable is NorthWestern Energy service in Bozeman?

NorthWestern Energy is an investor-owned utility with 376,392 customers. In 2024 its customers averaged 1.3 interruptions and 233 minutes (about 3.9 hours) without power, so the average outage lasted about 3 hours.

Major event days, the severe-weather days that utilities report separately, made up about 49% of that time. Without them the average is 118 minutes, so weather matters here but ordinary equipment faults and tree contact account for most of the total.

The typical outage was repaired in about 3 hours.

For comparison, Montana as a whole averaged 352 minutes and the United States 614 minutes. That puts NorthWestern Energy below the state average, which is better.

Among the 6 utilities in Montana with at least 5,000 customers that report to the federal government, NorthWestern Energy ranks 2nd for the fewest outage minutes (1 is best). Nationally, 43% of the 926 utilities of that size reported more outage minutes in 2024.

These are the figures the utility itself reported to the US Energy Information Administration (Form EIA-861, 2024) and describe the whole service territory, not one street. Your own address can be better or worse.

Storm season and outages in Bozeman

NOAA’s Storm Events Database lists 85 storm reports for Gallatin County from 2015 through 2025, most often thunderstorm wind (49), hail (28), funnel cloud (5), and flood (2). The busiest full year was 2020 with 16 reports and the quietest was 2015 with 1, so the risk changes a lot from one year to the next.

Reports peak in July (37 since 2015), followed by August and June. October is outside those three months, so an outage now is less likely to be weather-related.

NOAA’s own narratives name power outages in 10 storm episodes in Gallatin County since 2015, most often in May. That count is a floor, since the database records outages only when a spotter or agency mentions them.

What the most common storm types in Bozeman do to the grid:

• Thunderstorm wind. Straight-line wind pushes trees and limbs into distribution lines. These outages are usually local, a street or a neighborhood at a time, and crews clear them circuit by circuit.
• Hail. Hail rarely cuts power by itself, but it often arrives with the wind and lightning that do, and it breaks solar panels, windshields and exposed utility equipment.
• Funnel cloud. Funnel clouds are a warning sign for the wind damage that usually follows.

Storm reports that name Bozeman

Within Gallatin County, 51 NOAA storm reports since 2015 name Bozeman as their location or in their description: thunderstorm wind (32), hail (17), funnel cloud (1), and flash flood (1). That is about 60% of the county’s reports, so Bozeman accounts for much of the county’s storm history. Reports naming Bozeman are most common in July. The busiest full year was 2020 with 12.

In NOAA’s own words, storms that left Bozeman without power:

• September 11, 2024 (thunderstorm wind): “Public report of trees and power lines down across roads in far southern Bozeman.” Source: NOAA Storm Events Database

Who a power outage hits hardest in Bozeman

59.6% of occupied homes in Bozeman are heated with piped natural gas, and 35.9% with electricity (US 41.3% electric). A gas furnace still needs electricity for its blower and ignition, so a long winter outage leaves these homes cold too, though a gas supply stays on when the grid fails. Never heat a home with an oven, grill or camp stove indoors.

Residents aged 65 or older are 11.4% of the population in Bozeman, below the US share of 17.2% and 9.4% report a disability (US 13.3%). These are the households most likely to depend on powered medical equipment such as oxygen concentrators, CPAP machines and refrigerated medicine. If someone in your home does, ask NorthWestern Energy whether it keeps a priority or medical-needs list, and register before the next storm rather than during it.

About the housing: 20.9% of the housing in Bozeman was built before 1970 (US 35.5%); 55.3% of households rent (US 34.8%), so many residents depend on a landlord to restore building systems and cannot add a generator or battery themselves.

Source: US Census Bureau, American Community Survey 2020–2024 (housing, heating fuel, age and disability tables).

Backup power and electricity use in Bozeman

The average NorthWestern Energy home used about 711 kWh a month in 2024 (US average 892 kWh), an average draw of 1.0 kW around the clock, and paid about 14.2 cents per kWh (12.7 in the state, 15.8 nationally), roughly $101 a month.

Keeping only the essentials on (a refrigerator, router, a few lights and phone chargers, about 400 watts) through an outage that lasts the average about 3 hours takes about 1.2 kWh. A portable power station or a power bank covers that; a generator is more than most households here need for a typical outage.

A generator must never run indoors, in a garage or near a window; generator and food-safety rules are in the power outage guide linked below.

If the power is out in Bozeman

About 53,693 people live in Bozeman, the 4th largest of the 4 Montana cities on this site. Report the outage to the utility so a ticket exists for your address, then check NorthWestern Energy’s outage map for an estimate. If neighbors have power and you do not, report it again: the fault may be on the line to your house alone, which is a separate repair.

Bozeman power outage map

NorthWestern Energy’s outage map has the official restoration estimate for your address; the count above comes from residents. Food and generator safety: power outage guide.

Bozeman power outage questions