Anqing has a four-season, monsoon-influenced humid subtropical climate, with chilly, damp winters and very hot, humid summers. Cold northwesterly winds from Siberia can occasionally cause nightly temperatures to drop below freezing (although snow is uncommon), while summer can see extended periods of 35 °C (95 °F)+ days. The monthly 24-hour average temperature ranges from 4.3 °C (39.7 °F) in January to 29.2 °C (84.6 °F) in July, while the annual mean is 17.20 °C (63.0 °F). Precipitation tends to reach a maximum in tandem with the meiyu (plum rains) while wintertime rainfall is generally light. With monthly percent possible sunshine ranging from 30% in March to 54% in August, the city receives 1,831 hours of bright sunshine annually.