Not actual metars/tafs but try
www.wunderground.com for historicals. Just input ICAO/IATA code for data then search by inputing date data for historicals, it'll give you full 24hr data. Both DAM & AMM only issue hourly. Otherwise for specific time rqst from yr CFP provider.
NB. wunderground can give you this for all airport locations where data is published, good and free source for acft T/O perf planning out of normal ops area.
Hope it helps, let me know. Merlin