Precipitation is high year-round. Winter features a mix of rain, freezing rain and snow with frequent freeze-thaw cycles. Snowfall is heavy in winter, but snow cover is usually patchy owing to the frequent freeze-thaw cycles, which melt accumulated snow. Some winters feature colder temperatures and fewer freeze-thaw cycles; the most recent of which being the winter of 2014–2015, which was the coldest, snowiest and stormiest in about a century. Spring is often wet and cool and arrives much later than in areas of Canada at similar latitudes, due to cooler sea temperatures. Summers are mild and pleasant, with hot and humid conditions very infrequent. Warm, pleasant conditions often extend well into September, sometimes into mid-October. Average monthly precipitation is highest from November to February due to intense late-fall to winter storms migrating from the Northeastern U.S., and lowest in summer, with August being the year's warmest and driest month on average. Halifax can sometimes receive hurricanes, mostly between August and October. An example is when Hurricane Juan, a category 2 storm, hit in September 2003 and caused considerable damage to the region. Hurricane Earl grazed the coast as a category 1 storm in 2010. In 2019, Hurricane Dorian made landfall just south of Halifax as a post-tropical storm with an intensity equivalent to a category 2 hurricane and caused significant damage across Nova Scotia. Atlantic sea surface temperatures have risen in recent years, making Halifax and the coast of Nova Scotia somewhat more susceptible to hurricanes than the area had been in the past.