Around here
Around Green River
Data Source: Recreation.gov · Source: USGS GNIS · Public land: USGS PAD-US
About this river
Green River is an 8.9 mile stream near Berkshire U-Drive Boat Rental in Massachusetts. Streamflow is measured at the USGS gauge Green River at Williamstown, MA (site 01333000). The National Hydrography Dataset places it at stream order 4. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1949 to 2026
Green River typically runs highest in April, at a median 157 cfs, and lowest in September, at 16 cfs. The highest flow on record for any single day is 2,200 cfs, in 1974.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 60 | 37 to 103 |
| February | 53 | 35 to 89 |
| March | 98 | 65 to 168 |
| April | 157 | 106 to 241 |
| May | 81 | 53 to 126 |
| June | 40 | 26 to 69 |
| July | 21 | 14 to 36 |
| August | 17 | 9.9 to 34 |
| September | 16 | 8.8 to 35 |
| October | 31 | 14 to 62 |
| November | 62 | 33 to 100 |
| December | 76 | 50 to 130 |
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 77 years of record. Statistics published by the US Geological Survey for Green River at Williamstown, MA (site 01333000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Green 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.





