of the summers of his childhood: There were sultry days of brassy sun, but also cool evenings on the balconies facing the Don River, with the soft glow of charcoal in the samovar, with the ripe cherries crushed by your spoon against the bottom and sides of your glass of scalding tea. Rostov-on-Don lies in a humid continental climate (Köppen: Dfa). The winter is moderately cold, with an average January temperature of . The lowest recorded temperature of occurred in January 1940. Summers are warm and humid; July temperatures average . The city's highest recorded temperature of was reported on 7 July 2020. The mean annual precipitation is , the average wind speed is 2.7 m/s, and the average air humidity is 72%. Symbols In December 1996, Rostov-on-Don adopted a coat of arms, a flag and a mayoral decoration as the symbols of the town. The first coat of arms of Rostov-on-Don was designed in 1811 and approved by the Tsar. In 1904, some changes were made. One lasting oil painting of the coat-of-arms is kept in the regional local history museum but its accuracy and authenticity is uncertain. In June 1996, the Rostov-on-Don City Duma adopted a variant of the coat-of-arms in which a tower represents the St. Dimitry Rostovsky Fortress. The ancient Russian arms reference the role Rostov played in the defense of Russia's borders. The coat-of-arms adorns the mayor's decoration but all other cases of its use are first considered for approval by the City Duma. Flag The flag of Rostov-on-Don was approved by the Duma on September 20, 1864. At the end of the 19th and beginning of the 20th centuries the home guard regiments, which defended the Southern borders of Russia, were raised under this flag. The "Flag of Rostov" is kept in the town's municipal building under glass. Its length is and width, . The flag is taken out of the building only on Victory Day and Rostov-on-Don Day by a guard of honour. In 1870, an oval shape mayoral decoration wrought from precious or semi-precious white metal was introduced. On the front is written "Rostov-on-Don" at the top, the Rostov-on-Don coat-of-arms is in the center and the inscription, "Mayor of the City" is written at the bottom. On its reverse side, the day of its adoption, April 9, 1996, is recorded. The decoration is worn over the suit on a large chain. The