USGS Streamgage 06890900
Delaware River at Perry, KS
Delaware River at Perry, KS is USGS streamgage 06890900 in Kansas, monitoring river discharge in hydrologic subbasin 10270103. It sits on the Delaware River, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 1,141 square miles. Discharge records at this site go back to 1969. Typical flow runs near 168.7 cfs in July and 109.4 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Kansas
- Drainage area
- 1,141 sq mi
- Gauge elevation
- 852 ft
- Subbasin (HUC-8)
- 10270103
- Coordinates
- 39.075, -95.40386
- USGS site number
- 06890900
- Records begin
- 1969-03-21 (57 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 57 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 | 22 | 84.3 | 792.8 | |
| February | 24.8 | 190.8 | 1,189.5 | |
| March | 25.1 | 153.5 | 1,645.8 | |
| April | 24.9 | 109.4 | 3,350 | |
| May | 28.4 | 230 | 3,196.1 | |
| June | 29.5 | 419.6 | 4,485.7 | |
| July | 25 | 168.7 | 2,489.7 | |
| August | 24.6 | 70 | 1,622.1 | |
| September | 22.3 | 55.2 | 1,660.9 | |
| October | 23.8 | 50.2 | 1,994.2 | |
| November | 24.1 | 60.7 | 1,169.3 | |
| December | 23.6 | 146.5 | 1,496.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Delaware River at Perry, KS normally run highest?
- June, on the long-term record. The median daily flow that month is about 419.6 cfs, against 50.2 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Delaware River at Perry, KS?
- It depends on the month. In January, half of days historically fall near 84.3 cfs, with the middle 80% of days between 22 and 792.8 cfs. The month-by-month table on this page gives the full range.
- How long has Delaware River at Perry, KS been measured?
- Discharge records at USGS site 06890900 begin in 1969, about 57 years, covering roughly 9,133 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Delaware River at Perry, KS?
- The gauge sits at 39.075, -95.40386, in Kansas, in hydrologic subbasin 10270103, at an elevation of about 852 feet, draining roughly 1,141 square miles.
- Can I use Delaware River at Perry, KS 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 Delaware River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Delaware River in full.
- Delaware River near Muscotah, KS 431 sq mi
- Delaware River at Perry, KS this page