Siskiyou County, California
Gutter cleaning, repair and new gutters in Mount Shasta, CA
A normal year in Mount Shasta brings about 43 inches of rain; on roughly 13 of its days, an inch or more comes down at once. The wettest season is winter (December to February), with about 22.3 inches; the driest is summer (June to August), with 1.7. Every 1,000 square feet of roof sheds about 26,400 gallons a year, and all of it goes through the gutters.
Call (866) 228-6229 free call to a gutter contractor serving Mount ShastaMount Shasta: rain and roofs
NOAA station USC00045983, 0 miBars to one scale; the longest is winter (December to February).
For days with an inch of rain or more, Mount Shasta ranks 71st for heavy-rain days of the 939 places in California on this site (12.6 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 1973). The first frost here ranks 14th earliest for the first fall frost of the 507 places in California on this site (October 6).
When to clean gutters in Mount Shasta
The first fall frost comes around October 6 in a typical year here, and the last spring frost around May 15 (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 Mount Shasta rain
What overwhelms a gutter is a burst, not a season. In Mount Shasta the five-minute rain expected about once in ten years falls at 3.35 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,150 square feet of roof and one 3-by-4-inch downspout about 4,300, 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.
Mount Shasta averages about 89 inches of snow a year (NOAA normals). Snow on a roof brings ice dams: heat escaping from the house melts the snow, and the water refreezes at the cold eave, in the gutter and over it. University of Minnesota Extension puts the cause in the attic, not in the gutter, so a gutter that fills with ice is a symptom; hangers spaced to carry ice and a sound fascia are what the gutter itself needs.
The houses in Mount Shasta
Half the homes in Mount Shasta were built by 1973, 62% 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.
48% of households own their home, and 56% 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
Before hiring in Mount Shasta, 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 Mount Shasta
With half the homes built by 1973, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: