Ozarks Data
Water Pulse of the Ozarks
Ozarks rivers do not move through the year at the same pace. This view uses daily USGS discharge records from seven rivers over water years 2002–2025 to show the seasonal pulse beneath day-to-day weather.
The comparison covers the Buffalo, Current, Jacks Fork, Eleven Point, North Fork, James and Spring rivers.
The charts use long-run daily records rather than today's river level. Missing days remain missing; they are never treated as zero.
Peak month vs. October median discharge
This view compares each river's highest monthly median with its October median. A fuller seasonal comparison is not shown here. Raw cubic-feet-per-second values are not used to rank one river against another.
Seasonal contrast within each river — bar lengths are not comparable between rivers.
Buffalo River near St. Joe
Current River at Van Buren
Jacks Fork at Eminence
Eleven Point River near Bardley
North Fork River near Tecumseh
James River at Galena
Spring River at Hardy
Reference medians
Peak and October monthly median discharge in cubic feet per second by river| River | Peak month | Peak median (cfs) | October median (cfs) |
|---|
| Buffalo River near St. Joe | April | 1,450 | 67.3 |
|---|
| Current River at Van Buren | May | 3,175 | 972 |
|---|
| Jacks Fork at Eminence | May | 737 | 179 |
|---|
| Eleven Point River near Bardley | May | 1,270 | 464 |
|---|
| North Fork River near Tecumseh | May | 1,060 | 369 |
|---|
| James River at Galena | May | 1,505 | 207 |
|---|
| Spring River at Hardy | May | 1,500 | 408.5 |
|---|
Most of these rivers reach their highest monthly median flow in May. The Buffalo is the exception, with its highest monthly median in April. All seven reach their lowest monthly median in October.
- Buffalo River near St. Joe: April 1,450 cfs; October 67.3 cfs.
- Current River at Van Buren: May 3,175 cfs; October 972 cfs.
- Jacks Fork at Eminence: May 737 cfs; October 179 cfs.
- Eleven Point River near Bardley: May 1,270 cfs; October 464 cfs.
- North Fork River near Tecumseh: May 1,060 cfs; October 369 cfs.
- James River at Galena: May 1,505 cfs; October 207 cfs.
- Spring River at Hardy: May 1,500 cfs; October 408.5 cfs.
Record completeness
- five core gauges are gap-free in the shared baseline;
- Buffalo has 13 missing days of 8,766;
- Spring has 7 missing days of 8,766;
- no interpolation.