Phoenix's winter months, January and February, are mild with temperatures ranging from around 4-28°C. As March arrives, the mercury rises further, often reaching as high as 31°C on warm days. Spring is a time of significant temperature increase, with April and May averaging highs above 35°C and frequent spikes into the mid-40s. Summer brings scorching heat, with June to August temperatures frequently hitting 46°C or more during the day. Autumn sees a return to slightly more moderate conditions, but September and October still experience high temperatures often reaching up to 36°C, while November and December are cooler months with highs mostly in the mid-20s to low 30s.