Jurupa Valley experiences mild winters with temperatures ranging from near-freezing to moderate, averaging around 8-14°C. Spring brings warmer conditions, with temperatures gradually increasing to averages above 17°C by May and June. Summer is hot, with July and August being the warmest months, often reaching highs over 40°C, but also experiencing cooler mornings around 16°C. Autumn sees a return to milder temperatures, similar to those of winter, before dropping again in December.