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Pennington County, South Dakota

Gutter cleaning, repair and new gutters in Rapid City, SD

Rapid City gets about 20 inches of rain in a normal year, and on about 3 days a year an inch or more falls in a single day. The wettest season is summer (June to August), with about 8.1 inches; the driest is winter (December to February), with 1.2. That is about 12,400 gallons a year off each 1,000 square feet of roof, every drop of it through a gutter and a downspout.

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Rapid City: rain and roofs

NOAA station USC00396948, 0 mi
20.0 in
Rain in a normal year, Rapid City
NOAA normal, RAPID CITY WFO
3.4
Days with an inch or more
a year
12,400 gal
Water off 1,000 sq ft of roof in Rapid City
0.62 gal per sq ft per inch
6.56 in/hr
5-minute downpour, once in 10 years
NOAA Atlas 14 Volume 8
Oct 8
First fall frost
median date
1978
Median year homes were built
ACS 2020–2024
53%
Homes built before 1980
ACS 2020–2024
Winter1.2 in
Spring7.3 in
Summer8.1 in
Fall3.4 in

Bars to one scale; the longest is summer (June to August).

Counting days with an inch of rain or more, Rapid City sits among the fewest heavy-rain days of the 54 places in South Dakota on this site (3.4 a year). By house age it falls near the middle of the 54 places in South Dakota on this site (half built by 1978). By first frost it falls among the latest for the first fall frost of the 54 places in South Dakota on this site (October 8).

When to clean gutters in Rapid City

The first fall frost comes around October 8 in a typical year here, and the last spring frost around May 3 (median dates, NOAA normals). Booking the fall cleaning after the first frost, once the trees over the roof are bare, catches the season’s drop in one visit; the spring cleaning comes after the pollen and catkins are down.

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

Gutter and downspout size for Rapid City rain

The short, hard downpour is what a gutter is sized for. In Rapid City the five-minute rain expected about once in ten years falls at 6.56 inches an hour (NOAA Atlas 14 Volume 8). At that rate one 2-by-3-inch downspout drains about 1,100 square feet of roof and one 3-by-4-inch downspout about 2,200, 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.

With about 54 inches of snow in a normal year here (NOAA normals), gutters carry ice as well as water. Ice dams start with heat from the house melting roof snow that refreezes at the edge (University of Minnesota Extension); the fix for the dam is in the attic, and the gutter’s part is to be hung strongly enough to take the weight.

The houses in Rapid City

Half the homes in Rapid City were built by 1978, 53% before 1980 (ACS 2020–2024). Houses that age have often had their gutters replaced once already; if not, the original runs and the boards behind them deserve a close look. 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.

62% of households own their home, and 58% of homes are detached houses, 7% townhouses. If an association maintains the exterior, the gutters may be its job rather than yours; check before calling.

Hiring in South Dakota

Licensing for gutter work differs from state to state; ask a contractor in Rapid City which license or registration they hold in South Dakota, and for proof of liability insurance. Hiring a gutter contractor

Gutter work in Rapid City

With half the homes built by 1978, 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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