Four starting attempts to get the engine running in cold weather does not sound too serious. Since this happens after extended shut down I'm wondering if the fuel is draining back into the tank. If there is a check valve in the system then this check may be leaking and because you don't smell gas I'm not thinking a leak. Try turning the key to on (not start) for about 30 seconds first and see if it starts easier. If so then it'll be drain back. The check is probably in the pump.

92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles