In December, Shoreline typically sees daytime highs of 8.4°C and overnight lows around 2.7°C. Compared to the annual average high of 14.9°C, December runs -6.5°C.
December in Shoreline averages a daytime high of 8.4°C and an overnight low of 2.7°C.
December runs -6.5°C compared to Shoreline's annual average high of 14.9°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 8.4°C and cooler evenings around 2.7°C.