In March, El Cajon typically sees daytime highs of 19.4°C and overnight lows around 5.8°C. Compared to the annual average high of 23.9°C, March runs -4.4°C.
March in El Cajon averages a daytime high of 19.4°C and an overnight low of 5.8°C.
March runs -4.4°C compared to El Cajon's annual average high of 23.9°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 19.4°C and cooler evenings around 5.8°C.