In October, Richland typically sees daytime highs of 19.1°C and overnight lows around 4.3°C. Compared to the annual average high of 18.7°C, October runs +0.5°C.
October in Richland averages a daytime high of 19.1°C and an overnight low of 4.3°C.
October runs +0.5°C compared to Richland's annual average high of 18.7°C, ranking #7 of 12 months by warmth.
Plan for daytime highs near 19.1°C and cooler evenings around 4.3°C.