Around here
Around Grand River
Nature2
Source: Canadian Geographical Names Database (NRCan), Open Government Licence - Canada · Public land: USGS PAD-US
About this river
Grand River is a 43.4 mile river. Streamflow is measured at the Water Survey of Canada gauge Grand River near Marsville (site 02GA014). Reach geometry comes from Natural Resources Canada's National Hydro Network.
Typical flow by month
1947 to 2025
Grand River typically runs highest in April, at a median 458 cfs, and lowest in August, at 32 cfs. The highest flow on record for any single day is 11,901 cfs, in 1948.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 141 | 86 to 275 |
| February | 110 | 67 to 224 |
| March | 345 | 172 to 880 |
| April | 458 | 263 to 1,012 |
| May | 125 | 68 to 245 |
| June | 45 | 24 to 89 |
| July | 34 | 22 to 63 |
| August | 32 | 21 to 54 |
| September | 34 | 19 to 57 |
| October | 39 | 22 to 133 |
| November | 138 | 50 to 296 |
| December | 179 | 100 to 323 |
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 67 years of record. Statistics published by the US Geological Survey for Grand River near Marsville (site 02GA014). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Made to print
Put Grand 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 Grand 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.
