Columbia River at The Dalles, OR
USGS gauge 14105700 · drainage 237,000 sq mi · observed Oct 16, 4:15 PM PDT · 96 min old
Last 7 days Live gauge
Source: USGS Water Data API (continuous values), observed to Oct 16, 4:15 PM PDT. Shaded band: 25th to 75th percentile of USGS daily statistics for each date; dashed: median. Flow in cfs.
Daily mean flow Live gauge
| Date (gauge-local) | Mean flow | Note |
|---|---|---|
| Oct 16, 2026 | – | Partial day |
| Oct 15, 2026 | 84,731 cfs | |
| Oct 14, 2026 | 81,772 cfs | |
| Oct 13, 2026 | 82,295 cfs | |
| Oct 12, 2026 | 79,992 cfs | |
| Oct 11, 2026 | 78,527 cfs | |
| Oct 10, 2026 | 83,703 cfs | |
| Oct 9, 2026 | 93,975 cfs | |
| Oct 8, 2026 | – | Partial day |
Source: USGS Water Data API (continuous values); each mean uses readings on that gauge-local date, shown only with at least 80% of expected readings.
The same 50 days in earlier years Historical record
━ 2026 ╌ 2025 ╌ 2024 ╌ 2023
| Year | Mean flow | Highest day |
|---|---|---|
| 2026 | 87,600 cfs | 129,000 cfs |
| 2025 | 93,574 cfs | 118,000 cfs |
| 2024 | 93,040 cfs | 128,000 cfs |
| 2023 | 96,807 cfs | 119,000 cfs |
Source: USGS daily mean flows (Water Data API). Each line is the 50 days from Aug 27 to Oct 15, shifted to the same calendar dates in earlier years; gaps are days without a published value. Recent days are provisional.
Compared with this gauge’s record Historical record
| Measure | Value | When or rank |
|---|---|---|
| Peak daily flow, last 7 days | 93,500 cfs | Oct 9, 2026 |
| Last time daily flow was this high or higher | 98,600 cfs | Sep 1, 2026 (38 days earlier) |
| Last day above the 90th percentile for its date, before this peak | Mar 21, 2026 | 7 months earlier |
Source: USGS daily mean flows (Water Data API), 1878 to 2026 (50,000 days), data through Oct 15, 2026, computed 2026-10-17; method record-v1. Percentiles are USGS daily statistics. Recent days are provisional.
Largest annual peaks Historical record
Ten largest peaks of record
| Date | Peak flow | Gage height at peak |
|---|---|---|
| Jun 6, 1894 | 1,240,000 cfs | 59.60 ft |
| May 31, 1948 | 1,010,000 cfs | 154.56 ft |
| Jan 1, 1876 | 958,000 cfs | – |
| Jan 1, 1862 | 948,000 cfs | – |
| Jun 30, 1880 | 914,000 cfs | 48.50 ft |
| Jun 19, 1887 | 896,000 cfs | 39.30 ft |
| Jun 13, 1882 | 883,000 cfs | 40.80 ft |
| Jan 1, 1871 | 856,000 cfs | – |
| Jan 1, 1859 | 847,000 cfs | – |
| Jan 1, 1866 | 839,000 cfs | – |
Five most recent annual peaks
| Date | Peak flow | Gage height at peak |
|---|---|---|
| Apr 17, 2025 | 324,000 cfs | 79.72 ft |
| May 17, 2024 | 342,000 cfs | 77.67 ft |
| May 21, 2023 | 432,000 cfs | 83.88 ft |
| Jun 18, 2022 | 433,000 cfs | 83.05 ft |
| Jun 8, 2021 | 347,000 cfs | 80.22 ft |
Source: USGS annual peak streamflow (Water Data API), 168 annual peaks, 1858 to 2025. A water year's peak is its highest instantaneous flow.
Snow water equivalent at nearby SNOTEL stations Weather station
| Station | Distance | Elevation | Snow water now | Median for date | Of median | Date |
|---|---|---|---|---|---|---|
| Fifteenmile | 24 mi | 5,970 ft | 0.0 in | – | – | Oct 15, 2026 |
| Greenpoint | 25 mi | 3,320 ft | 0.0 in | 0.0 in | – | Oct 15, 2026 |
| Red Hill | 27 mi | 4,410 ft | 0.0 in | 0.0 in | – | Oct 15, 2026 |
Source: USDA Natural Resources Conservation Service SNOTEL stations within 37 miles of the gauge (AWDB web service), fetched Oct 16, 5:47 PM PDT. Provisional data; stations may not drain to this gauge.
Water temperature by month Historical record
Source: USGS daily mean water temperature (parameter 00010, Water Data API), 1996 to 2026, mean of all published daily values in each calendar month (days counted under each month).
Water quality sensors Live gauge
| Measure | Latest value | Observed |
|---|---|---|
| Water temperature | 18 °C | Oct 16, 5:00 PM PDT |
Source: USGS Water Data API (continuous values). Values as reported by the gauge, provisional.
Sources and method
- Data: U.S. Geological Survey. Terms
- Snow data: U.S. Department of Agriculture, Natural Resources Conservation Service. Terms
USGS daily statistics, downloaded 2026-10-12
Percentile method: trailing 24 h mean vs USGS daily percentiles for calendar date 10-16.
Percentile is estimated from USGS published daily percentiles. Readings are provisional until USGS reviews them. Not endorsed by USGS, NOAA or the National Weather Service. Not for navigation or safety-of-life decisions; the absence of an alert is not a statement that conditions are safe.