USGS Streamgage 13339500
Lolo Creek near Greer, ID
Lolo Creek near Greer, ID is USGS streamgage 13339500 in Idaho, monitoring river discharge in hydrologic subbasin 17060306. It drains a watershed of about 243 square miles. Discharge records at this site go back to 1911. Typical flow runs near 92.1 cfs in July and 803.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 243 sq mi
- Subbasin (HUC-8)
- 17060306
- Coordinates
- 46.37167, -116.1625
- USGS site number
- 13339500
- Records begin
- 1911-11-12 (115 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 115 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 | 72.4 | 158.3 | 534.8 | |
| February | 104.8 | 250.8 | 824.8 | |
| March | 238.8 | 543.8 | 1,156.8 | |
| April | 452.6 | 803.2 | 1,512 | |
| May | 304.3 | 657.2 | 1,365.5 | |
| June | 125.2 | 297.5 | 829.1 | |
| July | 50.5 | 92.1 | 211.9 | |
| August | 25.3 | 43.1 | 82 | |
| September | 22.8 | 37.4 | 83.4 | |
| October | 30.9 | 54.3 | 126.9 | |
| November | 50.4 | 102 | 290.5 | |
| December | 59.4 | 118.9 | 337.2 |
All values in cubic feet per second (cfs).
Common questions
- When does Lolo Creek near Greer, ID normally run highest?
- April, on the long-term record. The median daily flow that month is about 803.2 cfs, against 37.4 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Lolo Creek near Greer, ID?
- It depends on the month. In January, half of days historically fall near 158.3 cfs, with the middle 80% of days between 72.4 and 534.8 cfs. The month-by-month table on this page gives the full range.
- How long has Lolo Creek near Greer, ID been measured?
- Discharge records at USGS site 13339500 begin in 1911, about 115 years, covering roughly 9,102 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Lolo Creek near Greer, ID?
- The gauge sits at 46.37167, -116.1625, in Idaho, in hydrologic subbasin 17060306, draining roughly 243 square miles.
- Can I use Lolo Creek near Greer, 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.