cold snap

 cold snap寒波；【名詞】【可算名詞】突然の一時的な寒い天候.【名詞】寒さ続き（例文）a spell of cold weather. 【名詞】寒さ続き（例文）a spell of cold weather.

QUOTATION OF THE DAY

"Actually, today we're up to positive 6. That's nice. The last two days, we didn't get above zero."

ZACK HARGROVE, a meteorologist with the National Weather Service in Bismarck, N.D., where the high this weekend could be minus 12. The Midwest and Northeast are locked in a record-breaking cold snap.