Pagan Book of Days for February 2nd
Juno Februa/Candlemas/Wives’ Feast Days/Groundhog Day
Festival of Juno Februa, the presiding goddess of the month and Candlemas, the purification of the Virgin. The weather on this day is said to make the progress of winter:
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.
Also,
If the sun shines bright on Candlemas Day,
The half of the winter’s not yet away.
These sayings agree with those about Groundhog Day that link the length of winter to whether or not the groundhog sees his shadow on this day. An old northern English name of Candlemas is the Wives’ Feast Day.
Source
The Pagan Book of Days
Nigel Pennick