Wiktionary
mid-december
a. Happening in the middle of December. adv. In the middle of December. n. Any time in the middle of December.
WordNet
mid-December
n. the middle part of December
Usage examples of "mid-december".
It pads along the back roads and darkens the sky earlier each evening until finally, near mid-December, it plops on its ample backside as the cold sets in.
In mid-December the Australian trial transcript for which Celia had asked arrived on her desk.
One Friday afternoon in mid-December, a merchant seaman in pea coat and watchcap walked up Seventh Avenue to Penn Station.
The official packet reached Braintree in mid-December, at about the time Washington's army was on the march west from Philadelphia to take up winter quarters at Valley Forge.