In December, Hemel Hempstead typically sees daytime highs of 6.8°C and overnight lows around 2.0°C. Compared to the annual average high of 13.1°C, December runs -6.2°C.
December in Hemel Hempstead averages a daytime high of 6.8°C and an overnight low of 2.0°C.
December runs -6.2°C compared to Hemel Hempstead's annual average high of 13.1°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 6.8°C and cooler evenings around 2.0°C.