Fountain Valley experiences mild winters with temperatures ranging from freezing to pleasant, averaging around 14-17°C. Spring arrives in late March, bringing moderate temperatures between 13-29°C, gradually warming up to a high of 34°C by April and May. Summer months are warm to hot, with July and August being the hottest, averaging around 25°C, but rarely exceeding 38°C. Autumn is characterized by cooling temperatures, dropping from 23°C in September to 9°C by October, with November and December experiencing mild winters once again. The temperature fluctuations throughout the year remain relatively stable, with average highs often hovering between 28-31°C during the warmer months.