It was also a cause for concern for PG&E crews and fire teams battling the Garnet Fire.
This type of weather can create new strategies of preparation for possible outages and lightning strikes.
When there is a brief lull in the weather, PG&E crews take advantage of the sunshine.
"What we call blue sky days, much of that is spent in preparation for when the inclement weather arrives," said Jeff Smith, spokesperson with PG&E.
That includes showers, extreme heat and even snow.
PG&E says its teams are monitoring the threat of potential lightning strikes associated with this late-season rainstorm -- strikes that can cause a myriad of challenges, including flash-over events.
"Because it's the first rain after a long period of dry weather, there tends to be dust and dirt that accumulates on transformers. When you have that first rain, in some transformers it can cause a spark," said Smith.
A single spark that has the potential to spread into fire.
Crews battling the Garnet Fire, now near containment after burning for nearly a month above Pine Flat, say the rain is both a help and a hindrance.
"A moderate amount is, of course, beneficial, but when we get too much, that's the problem," said Austin Gonzagowski with the U.S. Forest Service.
Muddy conditions create accessibility challenges for crews to get in and out of the fire safely.
"Friday, it's probably going to hinder operations. We may not be able to insert firefighters into the area, or equipment for that matter, because of the conditions," said Gonzagowski.
Firefighters are tackling the Garnet Fire in rainy conditions for the first time since it began burning in late August.
Crews are building a strategic approach by mitigating hydrological problems linked to rainstorms.
"We'll be creating water bars; repairing culverts, drainages to prevent erosion associated with future rain and snowfall," said Gonzagowski.
PG&E says these types of storms keep its teams always on alert, regardless of the season.
"Whether it's winter weather, summer weather, hot days, earthquakes, all those types of things, we're in a regular preparation mode for that," said Smith.
The utility company is reminding residents to always pack a go-bag in the event of an outage or emergency.
It also advises customers to call and report whenever there is a downed power pole or tree.
Crews will be available to assist with the removal and clean-up.
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