Power outage history
Shasta County California
21hours
without power for the average customer in a typical year, 2018–2025
18th most of 56 in California 3.3× the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Shasta's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2019 was the worst well-recorded year, at 3.3 days for the average customer. Hatched years have a thin record and are left out of the averages.
Shasta, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Oct 26, 2019 | Windstorm | 33,893 | 42% | 4.9 d | 4.0 d | 2.3M |
| Feb 15, 2019 | No storm report | 19,562 | 24% | 5.1 d | 4.5 d | 1.1M |
| Feb 12, 2019 | Winter storm | 38,021 | 47% | 32 h | 5.2 h | 994k |
| Oct 25, 2020 | Wildfire | 28,630 | 35% | 2.1 d | 43 h | 817k |
| Jul 26, 2018 | Heat | 5,059 | 6% | 11.4 d | 11.3 d | 651k |
| Aug 17, 2021 | Wildfire | 20,766 | 26% | 47 h | 42 h | 594k |
| Oct 10, 2019 | Windstorm | 31,673 | 39% | 30 h | 27 h | 465k |
| Sep 7, 2020 | Wildfire | 12,911 | 16% | 44 h | 30 h | 420k |
| Oct 21, 2020 | Wildfire | 20,596 | 25% | 40 h | 32 h | 389k |
| Nov 20, 2019 | Windstorm | 14,536 | 18% | 30 h | 29 h | 328k |
| Oct 9, 2019 | No storm report | 31,672 | 39% | 11 h | 23 h | 321k |
| Aug 9, 2018 | Wildfire | 6,150 | 8% | 3.0 d | 3.0 d | 225k |
| Jan 26, 2021 | Winter storm | 6,951 | 9% | 2.8 d | 26 h | 222k |
| Oct 9, 2019 | Windstorm | 31,672 | 39% | 11 h | 17 h | 205k |
| Oct 14, 2020 | Wildfire | 6,105 | 8% | 45 h | 45 h | 204k |
| Sep 23, 2021 | Wildfire | 3,248 | 4% | 3.2 d | – | 133k |
| Aug 9, 2019 | No storm report | 23,653 | 29% | 13 h | 5.2 h | 120k |
| Nov 26, 2019 | Winter storm | 5,300 | 7% | 44 h | 2.2 d | 114k |
| Oct 17, 2024 | No storm report | 2,677 | 3% | 2.1 d | – | 112k |
| Feb 24, 2023 | Winter storm | 7,583 | 9% | 34 h | 27 h | 105k |
| Jun 5, 2023 | Thunderstorms | 10,336 | 13% | 16 h | 14 h | 91k |
| Jun 19, 2025 | No storm report | 2,923 | 4% | 42 h | – | 82k |
| Sep 30, 2024 | No storm report | 8,406 | 10% | 13 h | 9.2 h | 73k |
| Dec 15, 2021 | No storm report | 2,749 | 3% | 45 h | – | 66k |
| Mar 9, 2023 | Winter storm | 3,717 | 5% | 45 h | – | 65k |
| Oct 11, 2021 | Wildfire | 2,536 | 3% | 28 h | – | 65k |
| Sep 27, 2020 | Wildfire | 3,130 | 4% | 20 h | – | 48k |
| Mar 28, 2023 | Winter storm | 5,936 | 7% | 16 h | 20 h | 45k |
| Jun 24, 2018 | Heat | 2,070 | 3% | 24 h | – | 41k |
| Nov 18, 2021 | No storm report | 2,668 | 3% | 15 h | – | 39k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Shasta from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- Windstorm 29%
- Wildfire 27%
- No storm on record 22%
- Winter storm 14%
- Heat 6.3%
- Thunderstorms 0.9%
Who keeps the lights on
Utilities serving Shasta
As each utility reports to the Energy Information Administration for its whole California territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Pacific Gas & Electric Co. | Investor Owned | 273 | 208 | 1.63 | 37.5 | 5.1M |
| City of Redding | Municipal | 74 | 50 | 0.68 | 19.0 | 39k |
| PacifiCorp | Investor Owned | 485 | 297 | 5.31 | 24.2 | 36k |
| City of Shasta Lake | Municipal | 80 | 80 | 0.73 | 22.9 | 4.3k |
| WAPA-- Western Area Power Administration | Federal | – | – | – | – | – |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 81,282 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →