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Contra Costa County, California

Gutter cleaning, repair and new gutters in Pacheco, CA

Pacheco gets about 18 inches of rain in a normal year, and on about 4 days a year an inch or more falls in a single day. The wettest season is winter (December to February), with about 10.6 inches; the driest is summer (June to August), with 0.1. That is about 11,000 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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Pacheco: rain and roofs

NOAA station USC00041967, 0 mi
17.7 in
Rain in a normal year, Pacheco
NOAA normal, CONCORD WWTP
3.7
Days with an inch or more
a year
11,000 gal
Water off 1,000 sq ft of roof in Pacheco
0.62 gal per sq ft per inch
2.20 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 6
1977
Median year homes were built
ACS 2020–2024
61%
Homes built before 1980
ACS 2020–2024
Winter10.6 in
Spring4.4 in
Summer0.1 in
Fall2.6 in

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

Counting days with an inch of rain or more, Pacheco sits near the middle of the 939 places in California on this site (3.7 a year). By house age it falls near the middle of the 938 places in California on this site (half built by 1977).

When to clean gutters in Pacheco

Frost is rare in Pacheco, 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 Pacheco rain

The short, hard downpour is what a gutter is sized for. In Pacheco the five-minute rain expected about once in ten years falls at 2.20 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 3,270 square feet of roof and one 3-by-4-inch downspout about 6,550, 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.

The houses in Pacheco

Half the homes in Pacheco were built by 1977, 61% 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. On a house built before 1978, replacing more than 20 square feet of painted fascia or trim falls under the EPA’s lead-safe rule, so ask whether the crew is certified.

76% of households own their home, and 44% 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 Pacheco 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 Pacheco

With half the homes built by 1977, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it:

Nearby

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