About this river
North Platte River is a 39.4 mile river near B&A Marina in Wyoming. Streamflow is measured at the USGS gauge North Platte River below Whalen Diversion Dam, WY (site 06657000). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1917 to 2026
North Platte River typically runs highest in July, at a median 1,620 cfs, and lowest in January, at 8.1 cfs. The highest flow on record for any single day is 19,500 cfs, in 1917.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 8.1 | 4.0 to 32 | |
| February | 9.7 | 3.9 to 24 | |
| March | 11 | 5.0 to 106 | |
| April | 41 | 10 to 283 | |
| May | 741 | 155 to 1,420 | |
| June | 1,039 | 288 to 2,210 | |
| July | 1,620 | 1,320 to 1,900 | |
| August | 1,360 | 1,140 to 1,520 | |
| September | 446 | 211 to 890 | |
| October | 30 | 19 to 81 | |
| November | 12 | 7.3 to 50 | |
| December | 8.3 | 4.3 to 39 |
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 109 years of record. Statistics published by the US Geological Survey for North Platte River below Whalen Diversion Dam, WY (site 06657000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
3 mapped launches sit in the mapped area of North Platte River, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show North Platte River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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