Rivermatics

USGS Streamgage 11462500

Russian River near Hopland, CA

Russian River near Hopland, CA is USGS streamgage 11462500 in California, monitoring river discharge in hydrologic subbasin 18010110. It sits on the Russian River, alongside 4 other gauges Rivermatics tracks on the same river. It drains a watershed of about 362 square miles. Discharge records at this site go back to 1937. Typical flow runs near 189.4 cfs in July and 422.7 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, alongside daily high and low water-temperature forecasts.

View live conditions & forecast →

Gauge details

State
California
Drainage area
362 sq mi
Gauge elevation
500 ft
Subbasin (HUC-8)
18010110
Coordinates
39.02653, -123.13053
USGS site number
11462500
Records begin
1937-12-01 (89 years)
Rivermatics forecast
14-day flow outlook + water temperature

14-day flow forecast

Based on observations through for Russian River near Hopland, CA. 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
107 114 120
106 116 125
105 116 129
104 116 130
102 116 132
101 116 134
99.9 115 133
97.9 114 133
96.4 114 133
96 115 137
96.5 117 141
97 118 143
97 118 145
97.1 118 145

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 87 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 175.2 676.7 4,755.5
February 193 817 4,353.8
March 208 682.2 2,972.9
April 150.9 422.7 1,473.9
May 95.2 251.3 525.6
June 92.8 191.9 302.4
July 109.6 189.4 255.2
August 114.6 191.7 260.6
September 122 193.5 258.1
October 111.6 192.8 316.3
November 107.2 208.2 793.2
December 112.9 351.4 2,998.4

All values in cubic feet per second (cfs).

Common questions

When does Russian River near Hopland, CA normally run highest?
February, on the long-term record. The median daily flow that month is about 817 cfs, against 189.4 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Russian River near Hopland, CA?
It depends on the month. In January, half of days historically fall near 676.7 cfs, with the middle 80% of days between 175.2 and 4,755.5 cfs. The month-by-month table on this page gives the full range.
How long has Russian River near Hopland, CA been measured?
Discharge records at USGS site 11462500 begin in 1937, about 89 years, covering roughly 9,131 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Russian River near Hopland, CA?
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. A companion model forecasts each day's water-temperature high and low. 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 Russian River near Hopland, CA?
The gauge sits at 39.02653, -123.13053, in California, in hydrologic subbasin 18010110, at an elevation of about 500 feet, draining roughly 362 square miles.
Can I use Russian River near Hopland, CA 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.

Upstream and downstream on the Russian River

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Russian River in full.

Other gauges in this subbasin