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Gutter cleaning, repair and new gutters in Fontana, CA

Fontana gets about 12 inches of rain in a normal year, and on about 3 days a year an inch or more falls in a single day. The wettest season is winter (December to February), with about 7.5 inches; the driest is summer (June to August), with 0.1. That is about 7,200 gallons a year off each 1,000 square feet of roof, every drop of it through a gutter and a downspout.

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Fontana: rain and roofs

NOAA station USW00003102, 9 mi
11.6 in
Rain in a normal year, Fontana
NOAA normal, ONTARIO INTL AP
2.7
Days with an inch or more
a year
7,200 gal
Water off 1,000 sq ft of roof in Fontana
0.62 gal per sq ft per inch
2.96 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 6
1989
Median year homes were built
ACS 2020–2024
29%
Homes built before 1980
ACS 2020–2024
Winter7.5 in
Spring2.7 in
Summer0.1 in
Fall1.3 in

Bars to one scale; the longest is winter (December to February).

Counting days with an inch of rain or more, Fontana sits near the middle of the 939 places in California on this site (2.7 a year). Its housing ranks among the newest by median year built of the 938 places in California on this site (half built by 1989).

When to clean gutters in Fontana

Frost is rare in Fontana, and in many years there is none (NOAA normals). With no hard freeze to strip the trees, the fall cleaning follows the leaf drop itself; book it once the trees over the roof are bare, and plan a second visit in spring.

When to clean gutters explains how the trees over a roof change the schedule.

Gutter and downspout size for Fontana rain

The short, hard downpour is what a gutter is sized for. In Fontana the five-minute rain expected about once in ten years falls at 2.96 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,430 square feet of roof and one 3-by-4-inch downspout about 4,860, by the rule in the Copper Development Association’s design handbook. Try your own roof in the gutter and downspout calculator, which starts from this figure.

Fontana is dry by national standards, about 12 inches in a normal year, but much of the rain that does come can arrive in short, hard storms: the five-minute downpour expected once in ten years still runs at 2.96 inches an hour. Where gutters are used here, the job is moving that burst away from the foundation, and keeping a dry season’s dust and debris from blocking the first storm.

The houses in Fontana

Half the homes in Fontana were built by 1989, 29% before 1980 (ACS 2020–2024). Houses that age have often had their gutters replaced once already; if not, the original runs and the boards behind them deserve a close look.

67% of households own their home, and 77% of homes are detached houses, 3% townhouses. If an association maintains the exterior, the gutters may be its job rather than yours; check before calling.

Hiring in California

Licensing for gutter work differs from state to state; ask a contractor in Fontana which license or registration they hold in California, and for proof of liability insurance. Hiring a gutter contractor

In California’s fire hazard severity zones, the 2025 Wildland-Urban Interface Code (in force January 1, 2026) requires gutters and downspouts of noncombustible material, and gutters fitted with an approved means to keep leaves and debris from collecting (section 504.4). (2025 California Wildland-Urban Interface Code, Chapter 5 (UpCodes))

Gutter work in Fontana

In a neighborhood with half its homes built by 1989, the usual calls are cleaning, guards and small repairs. The line takes all of it:

Nearby

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