About this river
Lehigh River is a 4.8 mile river near Extreme Adventure Travel Outfitters in Pennsylvania. Streamflow is measured at the USGS gauge Lehigh River at Walnutport, PA (site 01451000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1947 to 2026
Lehigh River typically runs highest in March, at a median 2,440 cfs, and lowest in September, at 578 cfs. The highest flow on record for any single day is 62,400 cfs, in 1955.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 1,500 | 968 to 2,470 | |
| February | 1,520 | 1,010 to 2,550 | |
| March | 2,440 | 1,630 to 3,500 | |
| April | 2,310 | 1,560 to 3,720 | |
| May | 1,850 | 1,290 to 2,730 | |
| June | 1,210 | 784 to 1,815 | |
| July | 787 | 514 to 1,270 | |
| August | 663 | 438 to 1,060 | |
| September | 578 | 393 to 1,050 | |
| October | 750 | 446 to 1,420 | |
| November | 1,285 | 728 to 2,175 | |
| December | 1,650 | 1,050 to 2,990 |
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 80 years of record. Statistics published by the US Geological Survey for Lehigh River at Walnutport, PA (site 01451000). 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 Lehigh 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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