50F this am, and dry-went for the CF roadbike & backpack vs steel cross bike & panniers - also, skipped coat but stuck w/ 2 shirts tights & full gloves - expect one shirt fingerless gloves just shorts going home mid-70s

supposed to be back to 50s and raining rest of the week so nice to get one awesome day...

CF ride 2mph faster than crossbike was last week, which itself was 2mph faster than the same setup in December/January (is the air denser then???)