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Siding in Ontario: San Bernardino County has seen flash floods and floods in the last 10 years, with hail up to 1.75 inches.
In San Bernardino County, July highs average about 101°F and January lows about 39°F, with roughly 7 inches of rain a year. That much heat keeps air conditioners running hard for months, so a yearly tune-up pays off.
Over the last 10 years the National Weather Service recorded flash floods, floods and damaging thunderstorm winds in San Bernardino County, with hail up to 1.75 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
San Bernardino County has had 40 federal disaster declarations in the last 25 years, most often for wildfires; the latest was Bridge Fire (2024).
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Fiber cement and quality vinyl stand up to storms and sun; ask the pro to price both in the proposal.
Cracks, warping, loose panels, rot underneath or rising energy bills are the usual signs.
These are San Bernardino County figures — more about homes in San Bernardino.
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