USGS Streamgage 14198500
Molalla River Ab Pc near Wilhoit, OR
Molalla River Ab Pc near Wilhoit, OR is USGS streamgage 14198500 in Oregon, monitoring river discharge in hydrologic subbasin 17090009. It drains a watershed of about 97 square miles. Discharge records at this site go back to 1935. Typical flow runs near 86.4 cfs in July and 625.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 97 sq mi
- Subbasin (HUC-8)
- 17090009
- Coordinates
- 45.00972, -122.48092
- USGS site number
- 14198500
- Records begin
- 1935-10-01 (91 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 90 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 | 213.4 | 620.6 | 2,372.3 | |
| February | 248 | 601.1 | 2,081.4 | |
| March | 275.8 | 572.1 | 1,490.6 | |
| April | 301.7 | 625.5 | 1,188.7 | |
| May | 220.8 | 476.3 | 950.1 | |
| June | 116.1 | 224 | 553.8 | |
| July | 53.5 | 86.4 | 163.6 | |
| August | 30.4 | 44.8 | 83.7 | |
| September | 25 | 42.2 | 157.9 | |
| October | 29.1 | 100.5 | 550.8 | |
| November | 108.6 | 471.5 | 1,794.9 | |
| December | 216.6 | 655.4 | 2,279.7 |
All values in cubic feet per second (cfs).