It's true that the word 'Hanukkah' is not found in the scriptures, but Hanukkah is also called the Feast of Dedication which is found in John 10:22-23. "And it was at Jerusalem the feast of dedication and it was winter.  And Jesus walked in the temple in Solomon 's porch."

 

According to Tyndale's New Bible Dictionary, "the extra-biblical feast of Hanukkah is the celebration of the recovery and cleansing of the Jerusalem Temple by Judas Maccabaeus in 164 BC after its desecration by Antiochus IV Epiphanes. It is also called the Festival of Lights."

 

According to the link at http://en.wikipedia.org/wiki/Hanukkah

"From the Hebrew word for "dedication" or "consecration", Hanukkah marks the rededication of the Temple in Jerusalem Second Temple after its desecration by the forces of the King of Syria Antiochus IV Epiphanes and commemorates the "miracle of the container of oil". According to the Talmud, at the re-dedication following the victory of the Maccabees over the Seleucid Empire, there was only enough consecrated olive oil to fuel the eternal flame in the Temple for one day. Miraculously, the oil burned for eight days, which was the length of time it took to press, prepare and consecrate fresh olive oil."