Generally,
- the snow is out of the woods, or at least mostly
- there are no bugs yet
- the trad lines are often still wet, unless clean and in the sun
- both trad and bouldering are often done well before then
Plan to climb, but if you are thinking of trad climbing, don't bring a full rack; instead, just bring shoes, harness and helmet and post for a partner. If you are coming to boulder, shirts are not permitted in N.S..
The above are all statements capable of proof, not opinions. And I have climbed more with military people in the last six months than with non-military and damn, I have come to prefer them, especially in the last four days.