I have a 1993 prelude and it started getting cold around here a few weeks ago. when i first noticed the prob it was hard to get the car into first. then once it got really cold 30's at night in the morning it was impossable to get into 1st until it warmed up a lil even to the point if i let the clutch out even a lil off the floor it would pull the car up hill. on the coldest morning the car stalled out when i tried to start it in first with the clutch pedal on the floor. also the clutch has not resitance when cold but also as it warms up it gradually goes back to how it was before the prob.

 

sometimes mine feels like that too it seems like, not the whole stalling part but it is a little stiffer then usual when its cold and to be honest with you if the problem continues when it warms up you might need to look around on what needs to be replaced or serviced