This is a nice little rhyme that ties Candlemas/Imbolc to Groundhog's Day...
"If Candlemas Day be fair and bright,
Winter will have another flight;
If on Candlemas Day be shower and rain,
Winter is gone, and will not come again."
Alternately...
"If the sun shines bright on Candlemas Day,
The half of the winter's not yet away."
*~*Author Unknown*~*