Which section of the river were you on? Essentially it runs past the bottom of the complex of hills I live on so I watch the water levels pretty closely when we're driving around. The reservoir levels are down a little bit but not all that much because the system is spring fed, it takes more than just a dry month to really bring them down significantly. If you want a fun place to check out from the water try putting in at the park in Patterson and wander around the Great Swamp between there and Pawling. That's where the water splits and runs off in two directions, south into the Croton River system and north it's the Swamp River that feeds into Tenmile River and out to the Housatonic. If I'm not mistaken it's the only place in NY where water flows out of an area into two different basins. I'm not sure how many trees might still be blocking things up after those tornadoes ripped through a couple of years ago but I know that people have been venturing back in last year and this year.