In April, Hillsboro typically sees daytime highs of 15.3°C and overnight lows around 3.8°C. Compared to the annual average high of 16.4°C, April runs -1.0°C.
April in Hillsboro averages a daytime high of 15.3°C and an overnight low of 3.8°C.
April runs -1.0°C compared to Hillsboro's annual average high of 16.4°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 15.3°C and cooler evenings around 3.8°C.