April in Greeley averages a daily high of 19.2°C with nights around 1.8°C. Expect roughly 7.5 wet days totalling 46.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Greeley is September–October.
Based on GREELEY UNC, CO US (2.5km), 1995–2024. 29 years of April data.