Chongqing, Chongqing Municipality, China

Chongqing has a monsoon-influenced humid subtropical climate (Köppen Cfa), and for most of the year experiences very humid conditions. Known as one of the "Three Furnaces" of the Yangtze River, along with Wuhan and Nanjing, its summers are long and among the hottest and most humid in China, with highs of 33 to 34 °C (91 to 93 °F) in July and August in the urban area. Winters are short and somewhat mild, but damp and overcast. The city's location in the Sichuan Basin causes it to have one of the lowest annual sunshine totals nationally, at only 1,055 hours, lower than much of Northern Europe; the monthly percent possible sunshine in the city proper ranges from a mere 8% in December and January to 48% in August. Extreme temperatures of Chongqing central urban area have ranged from −1.8 to 43.0 °C (29 to 109 °F).
As exemplified by Youyang County below, conditions are often cooler in the southeast part of the municipality due to the higher elevations there.
• Air quality
Chongqing, with over 100 days of fog per year, is also known as the "Fog City" (雾都), and a thick layer of fog shrouds it for 68 days per year during the spring and autumn. During the Second Sino-Japanese War, this special weather possibly played a role in protecting the city from being overrun by the Imperial Japanese Army.