Monthly climate guide
Denver weather in May
May in Denver is typically mild, with average daytime highs around 20°C (68°F) and night-time lows near 4°C (39°F). The month usually brings about 69 mm of rain (some rain) and is often cloudy. Daytime highs are 5°C warmer than April and 9°C cooler than June.
What stands out in May
- Denver is usually about 2°C warmer than Colorado Springs, 100 km away, in May.
- Afternoons and nights feel like different seasons, roughly 16°C apart.
- Temperatures are climbing — June is around 9°C warmer.
- It's wetter than a typical month in Denver — roughly 86% more rain than average.
It's usually the wettest month of the year.
Avg high
20°C
68°F
Avg low
4°C
39°F
Rainfall
69 mm
some rain
Humidity
51%
relative
Sky
57%
cloud · often cloudy
Denver weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 5°C / 41°F | -6°C / 20°F | 18 mm | 55% | 54% |
| February | 6°C / 42°F | -7°C / 19°F | 26 mm | 57% | 55% |
| March | 12°C / 53°F | -3°C / 26°F | 32 mm | 51% | 52% |
| April | 15°C / 59°F | -1°C / 31°F | 46 mm | 50% | 56% |
| May | 20°C / 68°F | 4°C / 39°F | 69 mm | 51% | 57% |
| June | 29°C / 83°F | 11°C / 52°F | 38 mm | 40% | 44% |
| July | 30°C / 86°F | 15°C / 58°F | 67 mm | 47% | 47% |
| August | 29°C / 84°F | 14°C / 56°F | 42 mm | 45% | 46% |
| September | 25°C / 78°F | 10°C / 49°F | 42 mm | 45% | 40% |
| October | 18°C / 64°F | 2°C / 35°F | 27 mm | 48% | 43% |
| November | 11°C / 52°F | -3°C / 27°F | 20 mm | 50% | 45% |
| December | 5°C / 41°F | -7°C / 20°F | 18 mm | 55% | 51% |
What to pack for May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- A small travel umbrella, just in case
Is May a good time to visit Denver?
Compare the months in the chart above to find your ideal window.
Best time to visit Denver →Other United States cities in May
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Denver weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/denver/may
<a href="https://weathercompare.eu/weather/usa/denver/may">Denver weather in May</a> (WeatherCompare)
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Denver in May: quick answers
Is May a good time to visit Denver?
May is a reasonable time for Denver: highs around 20°C and about 69 mm of rain, though not one of the three best months.
How warm is Denver in May?
Average highs are about 20°C (68°F) and average lows about 4°C (39°F), based on 10 years of daily data.
Does it rain a lot in Denver in May?
Denver typically gets around 69 mm of rain in May — some rain. It's usually the wettest month of the year.
Figures are long-term averages for the area around Denver (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.