Around here
Around North Fork Sun River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
North Fork Sun River is a 27.1 mile river. Streamflow is measured at the USGS gauge North Fork Sun River near Augusta MT (site 06078500). The National Hydrography Dataset places it at stream order 5. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1911 to 2026
North Fork Sun River typically runs highest in June, at a median 1,160 cfs, and lowest in January, at 62 cfs. The highest flow on record for any single day is 20,000 cfs, in 1964.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 62 | 52 to 75 |
| February | 65 | 53 to 75 |
| March | 62 | 55 to 80 |
| April | 185 | 108 to 316 |
| May | 1,060 | 671 to 1,680 |
| June | 1,160 | 806 to 1,685 |
| July | 315 | 234 to 527 |
| August | 144 | 117 to 175 |
| September | 103 | 88 to 128 |
| October | 96 | 77 to 137 |
| November | 89 | 72 to 117 |
| December | 75 | 63 to 95 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 42 years of record. Statistics published by the US Geological Survey for North Fork Sun River near Augusta MT (site 06078500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put North Fork Sun River on your wall
This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show North Fork Sun River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
