Dalian has a monsoon-influenced humid continental climate, characterised by humid summers due to the East Asian monsoon, and cold, windy, dry winters that reflect the influence of the vast Siberian anticyclone. Except for winter, the city experiences a one-month seasonal lag due to its position on the Liaodong Peninsula. The monthly 24-hour average temperature ranges from −3.9 °C (25.0 °F) in January to 24.1 °C (75.4 °F) in August. Annual precipitation averages 602 millimetres (23.7 in) but is heavily concentrated in the summer months and can vary greatly from year to year. Due to the coastal location, the mean diurnal temperature variation annually is small, at 6.75 °C (12.2 °F). The monthly percent of possible sunshine ranges from 49% in July to 68% in September and October, with 2,740 hours of bright sunshine annually. The annual mean temperature is 10.90 °C (51.6 °F). Extremes since 1951 have ranged from −21.1 °C (−6 °F) on 4 January 1970 to 36.6 °C (98 °F) on 14 July 2015.Dalian has a monsoon-influenced humid continental climate, characterised by humid summers due to the East Asian monsoon, and cold, windy, dry winters that reflect the influence of the vast Siberian anticyclone. Except for winter, the city experiences a one-month seasonal lag due to its position on the Liaodong Peninsula. The monthly 24-hour average temperature ranges from −3.9 °C (25.0 °F) in January to 24.1 °C (75.4 °F) in August. Annual precipitation averages 602 millimetres (23.7 in) but is heavily concentrated in the summer months and can vary greatly from year to year. Due to the coastal location, the mean diurnal temperature variation annually is small, at 6.75 °C (12.2 °F). The monthly percent of possible sunshine ranges from 49% in July to 68% in September and October, with 2,740 hours of bright sunshine annually. The annual mean temperature is 10.90 °C (51.6 °F). Extremes since 1951 have ranged from −21.1 °C (−6 °F) on 4 January 1970 to 36.6 °C (98 °F) on 14 July 2015.