In February, Diamond Bar typically sees daytime highs of 18.6°C and overnight lows around 6.0°C. Compared to the annual average high of 24.1°C, February runs -5.5°C.
February in Diamond Bar averages a daytime high of 18.6°C and an overnight low of 6.0°C.
February runs -5.5°C compared to Diamond Bar's annual average high of 24.1°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 18.6°C and cooler evenings around 6.0°C.