Winters in Targu Jiu are cold and snowy, with temperatures often dropping below freezing point, averaging around -2°C in January and 1°C in February. Spring is a period of slow warming, with temperatures gradually increasing from April to May, eventually reaching averages above 10°C. Summer months bring warm days, with July being the hottest month, but temperatures can still drop at night. Autumn is relatively cool, with temperatures dropping back down into single digits by October and November. In winter and early spring, frost and snow are common, while summer sees occasional heatwaves.