The climate is similar to that of the nation’s capital, Bucharest. According to the Köppen climate classification, the city falls within the temperate humid continental climate(Dfa) of the hot summer type. The average annual temperature is 10.5 °C (50.9 °F), with record minimum registered on 25 January 1952 of −30 °C (−22 °F) while record maximum was registered on 19 July 2007 of 43 °C (109 °F). On average, around 17 days are very cold, 26 cold, 99 warm and 30 tropical, while the rest have a moderate temperature.
Average annual precipitations are 600 mm (24 in); 30–40 mm (1.2–1.6 in) in January and 88 mm (3.5 in) in June. Precipitations range between 963.9 mm (37.95 in) registered in 1901 and 305.3 mm (12.02 in) registered in 1930. Throughout the year, there are on average 104 days with rain, 26 with snow, 112 with clear skies, 131 with clouds and 122 with no sunshine. The climate of Ploiești is influenced by the winds coming from north-east (40%) and south-east (23%), having an average speed of 3.1 m/s (10 ft/s). On average, there are 11 days throughout the year with wind speed exceeding 11 m/s (36 ft/s) and only two days characterised by winds over 16 m/s (52 ft/s). Atmospheric pressure is 748.2 mm (29.46 in).