In April, Palo Alto typically sees daytime highs of 18.0°C and overnight lows around 7.0°C. Compared to the annual average high of 19.2°C, April runs -1.3°C.
April in Palo Alto averages a daytime high of 18.0°C and an overnight low of 7.0°C.
April runs -1.3°C compared to Palo Alto's annual average high of 19.2°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 18.0°C and cooler evenings around 7.0°C.