El Cajon experiences mild winters, with temperatures rarely dipping below freezing and averaging around 13°C in January and December. Spring is characterized by gradual warming, with April being the warmest month of the season, reaching highs of up to 36°C on average. Summer months bring more consistent warmth, with July and August averaging around 22°C, but occasional hot days can reach as high as 38°C. Autumn is marked by a cooling trend, with temperatures dropping back down into the single digits in October, but still averaging around 18°C for the month. Overall, El Cajon's climate is mild and pleasant year-round, with minimal extreme temperature fluctuations.