In December, Spring Valley typically sees daytime highs of 14.9°C and overnight lows around 1.8°C. Compared to the annual average high of 26.6°C, December runs -11.7°C.
December in Spring Valley averages a daytime high of 14.9°C and an overnight low of 1.8°C.
December runs -11.7°C compared to Spring Valley's annual average high of 26.6°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 14.9°C and cooler evenings around 1.8°C.