Typical Weather in Kennewick, WA in December

41° F Avg High

29° F Avg Low

3 Rainy Days

☀️ Temperature Summary

December is one of the cooler months of the year for Kennewick, with highs averaging around 41°F. You can expect overnight lows near 29°F most days. This is the coldest month of the year in Kennewick.

You may want to consider a warmer month to visit Kennewick, unless you're ready to brave the cold. If you're looking to travel when it's warmer, you might consider visiting in November instead, when daily highs are typically closer to 51°.

High Temps Throughout the Year

☔ Rain Summary

You can expect about a 11% chance of rain for any given day in December. It's one of the rainier months of the year for Kennewick, with total rainfall for the month around 1 inches.