USGS Streamgage 06345500
Heart River near Richardton, ND
Heart River near Richardton, ND is USGS streamgage 06345500, monitoring river discharge in hydrologic subbasin 10130202. It drains a watershed of about 1,240 square miles. Discharge records at this site go back to 1903. Typical flow runs near 21.7 cfs in July and 61.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 1,240 sq mi
- Gauge elevation
- 2,181 ft
- Subbasin (HUC-8)
- 10130202
- Coordinates
- 46.74556, -102.30833
- USGS site number
- 06345500
- Records begin
- 1903-06-01 (123 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 123 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 | 0.6 | 5.1 | 20 | |
| February | 0.5 | 8 | 92.7 | |
| March | 7.4 | 55.2 | 909.5 | |
| April | 15.8 | 61.5 | 754.8 | |
| May | 7.7 | 31.7 | 213.7 | |
| June | 7.3 | 38.5 | 304.1 | |
| July | 4 | 21.7 | 141.5 | |
| August | 0.6 | 9.9 | 49.5 | |
| September | 0.7 | 8.3 | 29.6 | |
| October | 2 | 11.3 | 38.6 | |
| November | 4 | 12.3 | 32.4 | |
| December | 2.2 | 8.5 | 22.6 |
All values in cubic feet per second (cfs).