Please Help! No spark in cold.

Hey all, first post here. I have a 97 Accord LX with the F22B2 4 cylinder 2.2L non-vtec automatic transaxle. As of two weekends ago, my car won't start in cold weather. There's no spark coming out of the coil (I don't get spark pulling the wire between the coil and distributor and holding it near a ground). In warm weather (late morning, afternoon) it fires right up, but I get nothing in cold weather.

So far I've replaced:
- Distributor
- Cap
- Rotor
- ICM
- Coil
- Wireset
- Main relay

I don't even know where to head next. I've been posting on another forum, please feel free to read that thread... http://www.hondaaccordforum.com/forum/general-tech-help-7/icm-goes-back-future-56873/

If anybody has any ideas, let me know! Thanks!