In January, Nampa typically sees daytime highs of 3.5°C and overnight lows around -5.3°C. Compared to the annual average high of 18.2°C, January runs -14.6°C.
January in Nampa averages a daytime high of 3.5°C and an overnight low of -5.3°C.
January runs -14.6°C compared to Nampa's annual average high of 18.2°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 3.5°C and cooler evenings around -5.3°C.