PowerOutageHistory
B

Mississippi County Power Outage History

20152025 · Missouri

Better than average — fewer or shorter outages than most counties. How grades are calculated

Total events
183
Avg duration
3.2 hrs
Longest outage
44 hrs
National percentile
65th

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Apr 2, 202426 hrs4,773 (45%)Unnamed event
Mar 6, 20178 hrs4,670 (44%)Hail
Feb 11, 20193 hrs2,975 (28%)Dense Fog
Apr 5, 20222 hrs2,927 (28%)Strong Wind
Jul 27, 20166 hrs2,838 (27%)Excessive Heat

Over the 11 years from 2015 to 2025, Mississippi County recorded 183 distinct power outage events, averaging 3.2 hours per event.

The single worst outage on record in Mississippi County started April 2, 2024, lasting 26 hours and leaving up to 4,773 customers without power (45% of the county) at its peak.

July has historically been the worst month for outages in Mississippi County, with 27 events recorded during that month across the dataset.

Based on this history, Mississippi County earns a Reliability Grade of B, placing it in the 65th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Mississippi County's outage profile

See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.

Outage-prep kit

See our outage-prep guides.

Similar counties in Missouri

Counties with the closest reliability grade and national percentile to Mississippi County.

CountyGradeNational percentile
Clinton CountyB65th
Clay CountyB66th
Carroll CountyB64th
Miller CountyB66th
Maries CountyB66th

FAQ

How often does power go out in Mississippi County?

Between 2015 and 2025, Mississippi County recorded 183 outage events, averaging 3.2 hours each.

What is Mississippi County's reliability grade?

Mississippi County has a Reliability Grade of B, in the 65th national percentile.

What was the worst power outage in Mississippi County?

The worst outage on record started April 2, 2024, lasting 26 hours and affecting up to 4,773 customers.

Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.