USGS Streamgage 14019200
Columbia River at McNary Dam,Near Umatilla, OR
Columbia River at McNary Dam,Near Umatilla, OR is USGS streamgage 14019200 in Oregon, monitoring river discharge in hydrologic subbasin 17070101. It drains a watershed of about 214,000 square miles. Discharge records at this site go back to 1950. Typical flow runs near 252,290.3 cfs in July and 175,333.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Oregon
- Drainage area
- 214,000 sq mi
- Subbasin (HUC-8)
- 17070101
- Coordinates
- 45.93268, -119.29659
- USGS site number
- 14019200
- Records begin
- 1950-10-01 (76 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 31 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 91,603.2 | 127,290.3 | 185,741.9 | |
| February | 102,739.3 | 136,103.4 | 205,000 | |
| March | 104,580.6 | 142,612.9 | 218,096.8 | |
| April | 120,286.7 | 175,333.3 | 301,300 | |
| May | 177,161.3 | 299,129 | 484,645.2 | |
| June | 187,966.7 | 387,000 | 577,133.3 | |
| July | 136,000 | 252,290.3 | 362,387.1 | |
| August | 104,329 | 143,290.3 | 191,806.5 | |
| September | 83,720 | 104,626.7 | 146,100 | |
| October | 82,996.8 | 102,225.8 | 135,516.1 | |
| November | 84,746.7 | 109,633.3 | 144,600 | |
| December | 84,706.5 | 118,906.5 | 167,419.4 |
All values in cubic feet per second (cfs).