Sonoma County, California
Gutter cleaning, repair and new gutters in Windsor, CA
Rain in Windsor adds up to about 34 inches in a normal year, with about 9 days that bring an inch or more. The wettest season is winter (December to February), with about 20.1 inches; the driest is summer (June to August), with 0.4. Off a 1,000-square-foot roof, that comes to about 20,900 gallons a year for the gutters to carry.
Call (866) 228-6229 free call to a gutter contractor serving WindsorWindsor: rain and roofs
NOAA station USW00023213, 3 miBars to one scale; the longest is winter (December to February).
By heavy-rain days, Windsor falls 152nd for heavy-rain days of the 939 places in California on this site (9.2 a year). By the age of its homes it sits among the newest by median year built of the 938 places in California on this site (half built by 1993). The first frost here ranks 112th earliest for the first fall frost of the 507 places in California on this site (November 20).
When to clean gutters in Windsor
The first fall frost comes around November 20 in a typical year here, and the last spring frost around March 2 (median dates, NOAA normals). A fall cleaning set for the weeks after that frost, when the branches over the house are bare, gets the year’s leaves in one trip; a spring visit follows once the pollen and catkins have come down.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Windsor rain
Gutters are sized for the worst few minutes of a storm, not for the year. In Windsor the five-minute rain expected about once in ten years falls at 3.49 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,060 square feet of roof and one 3-by-4-inch downspout about 4,130, 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 Windsor
Half the homes in Windsor were built by 1993, 15% before 1980 (ACS 2020–2024). At that age a gutter has seen decades of leaves and storms, and the fascia it hangs from has too.
74% of households own their home, and 75% of homes are detached houses, 7% townhouses. Where an HOA governs the exterior, its rules on gutter color and style apply before any order is placed.
Hiring in California
Before hiring in Windsor, ask which California license or registration the contractor holds and for a certificate 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 Windsor
In a neighborhood with half its homes built by 1993, the usual calls are cleaning, guards and small repairs. The line takes all of it: