Around here
Around Wallkill River
- Shawangunk Grasslands National Wildlife RefugeRecreation area5.1 mi (opens in a new tab)
- Vanderbilt Mansion National Historic SiteRecreation area13 mi (opens in a new tab)
- Pavilion Visitor CenterVisitor center13 mi (opens in a new tab)
- Stone Cottage Visitor CenterVisitor center14 mi (opens in a new tab)
Data Source: Recreation.gov · Public land: USGS PAD-US
About this river
Wallkill River is a 24.0 mile river near Greenwood Lake Boat Rentals in New Jersey. Streamflow is measured at the USGS gauge Wallkill River at Gardiner NY (site 01371500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1925 to 2026
Wallkill River typically runs highest in March, at a median 1,680 cfs, and lowest in September, at 167 cfs. The highest flow on record for any single day is 25,200 cfs, in 1955.
Show the numbers
| Month | Typical (cfs) | Usual range (cfs) |
|---|---|---|
| January | 780 | 480 to 1,540 |
| February | 936 | 547 to 1,700 |
| March | 1,680 | 1,060 to 2,870 |
| April | 1,365 | 868 to 2,360 |
| May | 813 | 503 to 1,370 |
| June | 411 | 237 to 783 |
| July | 221 | 122 to 475 |
| August | 178 | 89 to 426 |
| September | 167 | 81 to 399 |
| October | 217 | 121 to 634 |
| November | 594 | 267 to 1,155 |
| December | 823 | 438 to 1,640 |
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 102 years of record. Statistics published by the US Geological Survey for Wallkill River at Gardiner NY (site 01371500). 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 Wallkill 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.
