That's somewhat of a trick question since the answer is this year -- 2006! With the rains we have seen over the past couple of days, this year has surpassed June 1973 when the airport measured 9.38". As of midday Wednesday, the June 2006 rainfall at RDU was at 10.45" So much for that drought earlier this year!
Here's some interesting links from the National Weather Service:
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