In January, Derry typically sees daytime highs of 5.9°C and overnight lows around 0.9°C. Compared to the annual average high of 11.9°C, January runs -6.0°C.
January in Derry averages a daytime high of 5.9°C and an overnight low of 0.9°C.
January runs -6.0°C compared to Derry's annual average high of 11.9°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 5.9°C and cooler evenings around 0.9°C.