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Gutter cleaning, repair and new gutters in Grayson, CA

Rain in Grayson adds up to about 12 inches in a normal year, with about 1 days that bring an inch or more. The wettest season is winter (December to February), with about 7.0 inches; the driest is summer (June to August), with 0.2. Every 1,000 square feet of roof sheds about 7,600 gallons a year, and all of it goes through the gutters.

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Grayson: rain and roofs

NOAA station USW00023258, 13 mi
12.3 in
Rain in a normal year, Grayson
NOAA normal, MODESTO CITY CO AP
1.0
Days with an inch or more
a year
7,600 gal
Water off 1,000 sq ft of roof in Grayson
0.62 gal per sq ft per inch
2.30 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 6
Nov 26
First fall frost
median date
1983
Median year homes were built
ACS 2020–2024
38%
Homes built before 1980
ACS 2020–2024
Winter7.0 in
Spring3.4 in
Summer0.2 in
Fall1.7 in

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

For days with an inch of rain or more, Grayson ranks among the fewest heavy-rain days of the 939 places in California on this site (1.0 a year). By the age of its homes it sits near the middle of the 938 places in California on this site (half built by 1983). The first frost here ranks near the middle of the 507 places in California on this site (November 26).

When to clean gutters in Grayson

The first fall frost comes around November 26 in a typical year here, and the last spring frost around February 25 (median dates, NOAA normals). Plan the fall visit for after the frost, when the trees over the roof have finished dropping, and the spring visit for after the pollen and catkins.

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

Gutter and downspout size for Grayson rain

Gutters are sized for the worst few minutes of a storm, not for the year. In Grayson the five-minute rain expected about once in ten years falls at 2.30 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 3,130 square feet of roof and one 3-by-4-inch downspout about 6,260, 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.

Grayson 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 2.30 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 Grayson

Half the homes in Grayson were built by 1983, 38% 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.

57% of households own their home, and 95% of homes are detached houses, 3% 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 Grayson, 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 Grayson

With half the homes built by 1983, 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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