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Like much of the southeastern United States, Raleigh has a humid subtropical climate (Köppen Cfa), with four distinct seasons. Winters are short and generally cool, with a January daily average of 41.0 °F (5.0 °C). On average, there are 69 nights per year that drop to or below freezing, and only 2.7 days that fail to rise above freezing. April is the driest month, with an average of 2.91 inches (73.9 mm) of precipitation. Precipitation is well distributed around the year, with a slight maximum between July and September; on average, July is the wettest month, owing to generally frequent, sometimes heavy, showers and thunderstorms. Summers are hot and humid, with a daily average in July of 80.0 °F (26.7 °C). There are 48 days per year with highs at or above 90 °F (32 °C). Autumn is similar to spring overall but has fewer days of rainfall. Extremes in temperature have ranged from −9 °F (−23 °C) on January 21, 1985 up to 105 °F (41 °C), most recently on July 8, 2012.

How many nights in a year are there in Raleigh that are freezing?
69 nights per year