Around here
Around Pahsimeroi River
Temperature from a 1980 federal survey. The record says nothing about access, ownership or current conditions.
Data Source: Recreation.gov · Source: USGS GNIS · Thermal springs: NOAA NCEI (1980) · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)
About this river
Pahsimeroi River is a 57.7 mile river. Streamflow is measured at the USGS gauge Pahsimeroi River at Ellis ID (site 13302005). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1985 to 2026
Pahsimeroi River typically runs highest in November, at a median 284 cfs, and lowest in August, at 139 cfs. The highest flow on record for any single day is 710 cfs, in 1986.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 253 | 228 to 291 |
| February | 269 | 236 to 298 |
| March | 271 | 244 to 303 |
| April | 230 | 196 to 261 |
| May | 144 | 123 to 178 |
| June | 176 | 137 to 249 |
| July | 147 | 123 to 189 |
| August | 139 | 124 to 168 |
| September | 166 | 146 to 194 |
| October | 255 | 219 to 302 |
| November | 284 | 243 to 325 |
| December | 265 | 233 to 303 |
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 41 years of record. Statistics published by the US Geological Survey for Pahsimeroi River at Ellis ID (site 13302005). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Pahsimeroi 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 Pahsimeroi 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.
