Rivermatics

USGS Streamgage 13131000

Antelope Creek near Darlington, ID

Antelope Creek near Darlington, ID is USGS streamgage 13131000 in Idaho, monitoring river discharge in hydrologic subbasin 17040218. It drains a watershed of about 218 square miles. Discharge records at this site go back to 1913. Typical flow runs near 32.2 cfs in July and 55.6 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
Idaho
Drainage area
218 sq mi
Subbasin (HUC-8)
17040218
Coordinates
43.73361, -113.51472
USGS site number
13131000
Records begin
1913-04-29 (113 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Antelope Creek near Darlington, ID. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
17.2 18.5 19.5
16.5 18.2 19.6
15.9 18 20
15.4 17.8 20.4
15.1 17.9 21.3
15.2 18.3 22.9
15 18.4 23.5
14.8 18.4 24.3
14.3 18 23.6
13.9 17.9 24.2
13.5 17.7 24
13.3 17.6 24.2
13.2 17.7 25.1
12.8 17.6 25.1

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 9 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 8.1 22 43
February — 21.1 —
March — 29.2 —
April — 55.6 —
May — 111.9 —
June — 123.4 —
July — 32.2 —
August 1.3 19.6 75.3
September 2.2 19.6 65.1
October 5.6 23 63.7
November 6.1 25.8 60
December 5.9 23.3 45.9

All values in cubic feet per second (cfs).

Common questions

When does Antelope Creek near Darlington, ID normally run highest?
June, on the long-term record. The median daily flow that month is about 123.4 cfs, against 19.6 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Antelope Creek near Darlington, ID?
It depends on the month. In January, half of days historically fall near 22 cfs, with the middle 80% of days between 8.1 and 43 cfs. The month-by-month table on this page gives the full range.
How long has Antelope Creek near Darlington, ID been measured?
Discharge records at USGS site 13131000 begin in 1913, about 113 years, covering roughly 3,271 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Antelope Creek near Darlington, ID?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Antelope Creek near Darlington, ID?
The gauge sits at 43.73361, -113.51472, in Idaho, in hydrologic subbasin 17040218, draining roughly 218 square miles.
Can I use Antelope Creek near Darlington, ID 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