Roger, The spring creeks in PA are fishable year round, and I was fishing one of them. Many of the freestones have a sheet of ice over them just now, along with several inches of snow/sleet from last week's storm. I know of folks who even get out to the spring creeks when it's in the low to upper 20's, and I've done this a time or two, but I like to have air temps that keep the ice out of my guides. The sun yesterday helped a lot, though it kept the fish very spooky, and I believe the air got up to about 33 or 34 midday, but I'm not sure. The wind was my biggest problem; it kept blowing my leader, tippet, and fly around, so I had a hard time fighting drag. I had also slipped a unithread furled leader on when my Caucci superglue splice failed on the nylon leader I had installed the night before (the leader was new, but the splice had been created about a year ago; I should have given it a good hard pull at home instead of waiting to straighten it just before I started fishing). I'll add the next point to the furled leader thread, and perhaps email Jim Cramer, but wind may be another condition under which to prefer a nylon leader to a furled unithread. On the other hand, had I used more low snappy bounce casts, I might have been able to get the problem under control sooner. A better fisherman would have hooked at least five or six fish, but I was happy not to get skunked and this experience gave me incentive to keep practicing, practicing, practicing my casting under difficult conditions. Let me know when you're getting out and how the bug whispering goes out West when your baetis start emerging.
"He spread them a yard and a half. 'And every one that got away is this big.'"
--Fred Chappell