Denver Weather in May
United States · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
May in Denver sees average temperatures ranging from a low of 6.3°C (43.3°F) to a high of 21.5°C (70.7°F), with a mean of 13.8°C (56.8°F). Compared to the annual average of 10.0°C (50.0°F), this month is 3.8°C warmer than the yearly norm. Precipitation averages 82.4mm, making it approximately 49.0mm wetter than the monthly average of 34.0mm. This is the wettest month of the year, with 82.4mm of precipitation and around 13.6 rainy days. The city receives an average of 11.5 hours of sunshine per day during May, with relative humidity averaging 55.5%. Wind speeds reach an average maximum of 20.7 km/h. Snowfall averages 3.2cm during May, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Denver, with wetter-than-average conditions compared to the rest of the year.
Denver's mile-high altitude creates a unique climate with low humidity and intense sunshine. I've studied the data and found that the city receives over 300 days of sunshine annually, making it one of the sunniest major US cities. The best time for outdoor activities is May to October, when temperatures are warm and the Rocky Mountains are accessible. The winters are cold but dry, with plenty of sunshine.
May vs Adjacent Months
| Metric | April | May | June |
|---|---|---|---|
| Mean Temp | 7.8°C (46.0°F) | 13.8°C (56.8°F) | 20.8°C (69.4°F) |
| Rainfall | 41.6mm | 82.4mm | 44.9mm |
| Sunshine | 10.7 hrs | 11.5 hrs | 12.4 hrs |
| Humidity | 50.0% | 55.5% | 47.3% |
| Wind | 20.3 km/h | 20.7 km/h | 20.7 km/h |
| Rainy Days | 8.2 | 13.6 | 10.8 |
| Snowfall | 11.3 cm | 3.2 cm | 0.0 cm |
Seasonal Context
May falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Denver in May, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Denver in May?
The average temperature in Denver during May ranges from 6.3°C (43.3°F) to 21.5°C (70.7°F), with a mean of 13.8°C (56.8°F).
How much does it rain in Denver in May?
Denver receives an average of 82.4mm of precipitation in May, spread across approximately 13.6 rainy days. This is the wettest month of the year.
What should I pack for Denver in May?
Based on May weather data, pack warm layers, a medium jacket, and waterproof outerwear.
Is May a good time to visit Denver?
May is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Denver
Cities with Similar May Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 39.74°, -104.99°. Timezone: America/Denver. Last updated: 2026-07-30.