Denver weather in May
Long-run climate averages for Denver, CO in May, plus what the forecast models say for the days ahead.
In May, Denver averages 71°F by day and 44°F at night. It is the wettest month of the year here.
May in Denver averages a daytime high of 71°F and an overnight low of 44°F, which reads as mild for this part of the world. It is also the wettest month, so build rain into any plan. Across the whole year Denver sees roughly 17 inches of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Denver forecast with every model compared and how much they currently agree.
Denver weather by month
what to expect in Denver through the year, 1991-2020 averagesHere is Denver's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Denver by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Denver, scoring 97/100 on our CheckWeather Score, ahead of the American at 83. See the full US accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Denver in May?
Is May a good time to visit Denver?
Does it rain a lot in Denver in May?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .