Hudson River Temperature Going Up

It's been chilly the last couple of days, but the Hudson doesn't really low it. I've never seen the temperatures shoot up so quickly. A few weeks ago the water was in the low thirties, now we have this:

River Temperatures on 04/18/2014  at  8: 3:15

Albany	41.2 °F
Poughkeepsie	48.0 °F
West Point	46.9 °F
Piermont	46.6 °F
Battery	46 ° F
Sandy Hook	*** ° F

These reading come from the Hudson River Temperatures Page.

The high forties is out of the real danger range for a SUPer or windsurfer. That's when I feel safe getting into my lighter wetsuits. Not that you still can't get killed by that water, but it's safer.