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Marin County, California

Gutter cleaning, repair and new gutters in Lucas Valley-Marinwood, CA

Rain in Lucas Valley-Marinwood adds up to about 34 inches in a normal year, with about 11 days that bring an inch or more. The wettest season is winter (December to February), with about 21.9 inches; the driest is summer (June to August), with 0.2. Every 1,000 square feet of roof sheds about 21,400 gallons a year, and all of it goes through the gutters.

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Lucas Valley-Marinwood: rain and roofs

NOAA station USC00047880, 4 mi
34.5 in
Rain in a normal year, Lucas Valley-Marinwood
NOAA normal, SAN RAFAEL CIVIC CTR
11.3
Days with an inch or more
a year
21,400 gal
Water off 1,000 sq ft of roof in Lucas Valley-Marinwood
0.62 gal per sq ft per inch
3.44 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 6
1963
Median year homes were built
ACS 2020–2024
93%
Homes built before 1980
ACS 2020–2024
Winter21.9 in
Spring7.3 in
Summer0.2 in
Fall5.0 in

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

For days with an inch of rain or more, Lucas Valley-Marinwood ranks 89th for heavy-rain days of the 939 places in California on this site (11.3 a year). By the age of its homes it sits 153rd oldest by median year built of the 938 places in California on this site (half built by 1963).

When to clean gutters in Lucas Valley-Marinwood

Frost is rare in Lucas Valley-Marinwood, 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 Lucas Valley-Marinwood rain

What overwhelms a gutter is a burst, not a season. In Lucas Valley-Marinwood the five-minute rain expected about once in ten years falls at 3.44 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,090 square feet of roof and one 3-by-4-inch downspout about 4,190, 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 Lucas Valley-Marinwood

Half the homes in Lucas Valley-Marinwood were built by 1963, 93% before 1980 (ACS 2020–2024). In a neighborhood that age, many houses are on their second set of gutters or due for one, and the fascia board behind them is worth checking at the same visit. 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.

87% of households own their home, and 92% of homes are detached houses, 5% townhouses. Where an HOA governs the exterior, its rules on gutter color and style apply before any order is placed.

Hiring in California

Ask any contractor working in Lucas Valley-Marinwood what California requires of them for gutter work, and to show proof of 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 Lucas Valley-Marinwood

With half the homes built by 1963, 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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