Mark,<br>There doesn't seem to be a particular
time of the summer that has better vis than another.
Rain makes it yucky & we've had plenty of little rain
showers in the past couple of summers. Four or five years
ago we had very little rain & commonly had vis to 30'
in the northern parts of the river. A few times we
had 40'+ (!!)<br><br>A crude rule of thumb for water
temp in the river is 10 degrees per month. December
thru March, months 1 to 3 = 30 degree water. May (5)=
50 degrees. This works until about July(7)=70
degrees.<br><br>In the winter we have had vis up to about 60'. 30 or
40' vis is not uncommon if we have not had a melt in
a week or so. I recently bought a drysuit & love
it, but have made plenty of winter dives in my 1/4"
wetsuit. The trick is to fill up your suit with warm water
from a thermos before jumping in.<br><br>Hope to see
you this summer,<br>Chuck