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Caldwell County, Texas

Gutter cleaning, repair and new gutters in San Marcos, TX

San Marcos gets about 37 inches of rain in a normal year, and on about 11 days a year an inch or more falls in a single day. The wettest season is fall (September to November), with about 11.1 inches; the driest is winter (December to February), with 6.5. Off a 1,000-square-foot roof, that comes to about 22,700 gallons a year for the gutters to carry.

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San Marcos: rain and roofs

NOAA station USC00417983, 1 mi
36.5 in
Rain in a normal year, San Marcos
NOAA normal, SAN MARCOS
11.4
Days with an inch or more
a year
22,700 gal
Water off 1,000 sq ft of roof in San Marcos
0.62 gal per sq ft per inch
9.32 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 11
Nov 29
First fall frost
median date
1998
Median year homes were built
ACS 2020–2024
25%
Homes built before 1980
ACS 2020–2024
Winter6.5 in
Spring10.5 in
Summer8.4 in
Fall11.1 in

Bars to one scale; the longest is fall (September to November).

By heavy-rain days, San Marcos falls near the middle of the 959 places in Texas on this site (11.4 a year). By the age of its homes it sits among the newest by median year built of the 959 places in Texas on this site (half built by 1998). By first frost it falls among the latest for the first fall frost of the 821 places in Texas on this site (November 29).

When to clean gutters in San Marcos

The first fall frost comes around November 29 in a typical year here, and the last spring frost around February 28 (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 San Marcos rain

Gutters are sized for the worst few minutes of a storm, not for the year. In San Marcos the five-minute rain expected about once in ten years falls at 9.32 inches an hour (NOAA Atlas 14 Volume 11). At that rate one 2-by-3-inch downspout drains about 770 square feet of roof and one 3-by-4-inch downspout about 1,550, 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 San Marcos

Half the homes in San Marcos were built by 1998, 25% before 1980 (ACS 2020–2024). With homes this new, the gutters are usually the builder’s originals; keeping them clear matters more than replacing them.

30% of households own their home, and 34% of homes are detached houses, 4% townhouses. If an association maintains the exterior, the gutters may be its job rather than yours; check before calling.

Hiring in Texas

Before hiring in San Marcos, ask which Texas license or registration the contractor holds and for a certificate of liability insurance. Hiring a gutter contractor

Gutter work in San Marcos

In a neighborhood with half its homes built by 1998, the usual calls are cleaning, guards and small repairs. The line takes all of it:

Nearby

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