About Union Gap, WA

Union Gap, in Washington, United States, is home to roughly 6,000 people in the Pacific Time Zone at 46.6°N latitude.

Recent weather here gives a sense of typical conditions: in 2025, Union Gap recorded a mean annual temperature of 55°F, ranging from 13°F lows in February to 104°F highs in July, with about 15 inches of precipitation across the year.