Pasadena's climate is characterized by mild winters, with January averaging around 13°C and February averaging around 10°C. Spring brings a gradual warming trend, with March and April temperatures rising to an average of 17°C and 20°C respectively. Summer months are warm, but not hot, with July and August averages hovering around 29°C. Autumn is mild, with October and November temperatures cooling back down to averages of 24°C and 18°C, before warming up again in December. Overall, Pasadena's temperature range remains relatively stable throughout the year, with minimal extremes.