Rivermatics

USGS Streamgage 06418800

Rapid Creek above Wrf near Rapid City, SD

Rapid Creek above Wrf near Rapid City, SD is USGS streamgage 06418800 in South Dakota, monitoring river discharge in hydrologic subbasin 10120110. It drains a watershed of about 449 square miles. Discharge records at this site go back to 2016. Typical flow runs near 77.8 cfs in July and 71.4 cfs in April, with the higher of the two arriving in July.

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Gauge details

State
South Dakota
Drainage area
449 sq mi
Gauge elevation
3,007 ft
Subbasin (HUC-8)
10120110
Coordinates
44.02681, -103.10111
USGS site number
06418800
Records begin
2016-08-17 (10 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 10 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January 31.5 55 84.1
February 36.6 56.3 84.8
March 42.3 57.8 125.1
April 34.4 71.4 276.1
May 33.5 79.5 520.1
June 28.8 88.9 664.7
July 33.7 77.8 654.9
August 27.1 53.7 286.3
September 22.1 47.8 151.8
October 33.4 54.4 179.2
November 45.2 66.7 106.2
December 33.7 62.9 89.4

All values in cubic feet per second (cfs).

Common questions

When does Rapid Creek above Wrf near Rapid City, SD normally run highest?
June, on the long-term record. The median daily flow that month is about 88.9 cfs, against 47.8 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Rapid Creek above Wrf near Rapid City, SD?
It depends on the month. In January, half of days historically fall near 55 cfs, with the middle 80% of days between 31.5 and 84.1 cfs. The month-by-month table on this page gives the full range.
How long has Rapid Creek above Wrf near Rapid City, SD been measured?
Discharge records at USGS site 06418800 begin in 2016, about 10 years, covering roughly 3,578 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Rapid Creek above Wrf near Rapid City, SD?
The gauge sits at 44.02681, -103.10111, in South Dakota, in hydrologic subbasin 10120110, at an elevation of about 3,007 feet, draining roughly 449 square miles.
Can I use Rapid Creek above Wrf near Rapid City, SD data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Other gauges in this subbasin