Can high humidity kill 1/4 MPH and ET?

I went to the track last night w/ slicks hoping for a new best time, and while I got my 60' down to a 2 flat (from a previous best of 2.4), my mph and ET fell to a 14.6 @ 90, as opposed to a previous best of 14.5 @ 96.7 on street tires.
That sucked.
It was extremely humid, with thunderstorms close enough to close the track for a good while, and everyone else seems to have been running slowly as well.
Should I be looking into other possibilities for my crappy times and speed, or can humidity and heat make that much of an impact?
FWIW, it was dry and cold last time when I ran the 14.5 @ 96.7

so I shouldn't sell my car?

I was actually going to try that next!

well, for the majority, I'll blame the 60' times on lack of experience/practice.
Between the timeslip equipment breaking and looming thunderstorms, I olny got in 3 runs in 4 hours, and that was the first time I had ever run w/ slicks in my life, so there was alot of trial and error with how much throttle I could apply w/o losing traction, so I def. left alot on the table just in throttle application alone!! If I had gotten in more runs, I guarantee my 60's would've improved. By the time I figured out that the tires would hook under hard throttle, the track was shut down. I definitely did not get to take full advantage of the slicks!!
Also, I did not remove the swaybar nor do I have U or LCA's.
At the track, I was footbraking to about 2000-2200 RPM's, then leaving from there.
Any more than that and the tires would start to spin. This is also based off the stock tach. Maybe the tires weren't hot enough, but they did start to hook out of the burnout.
On the street, from idle it will flash right to 2800, so I don't think the TC is the problem, I think I just need to learn how to launch it on the track w/ sticky tires and learn how far I can push it.
I'm also sure control arms and front swaybar would help also.
Work in progress, boys, work in progress.
I'm just pissed I only got in 3 runs all night

nice! Sounds like it should be a blast!
My TC def. flashes to 2800 on the street, i just get loads of spin. W/ traction, it should hook right at 2800.
Can't wait!!!