May weather forecast
Denver, CO

The colorful sky above the sunlit Denver city, Colorado in autumn
The colorful sky above the sunlit Denver city, Colorado in autumn

Weather in May

May, the last month of the spring in Denver, is a comfortable month, with an average temperature fluctuating between 65.8°F (18.8°C) and 42.4°F (5.8°C).

Temperature

In May, the average high-temperature slightly increases from a mild 57.2°F (14°C) in April to a comfortable 65.8°F (18.8°C). The average low-temperature, in May, is 42.4°F (5.8°C).

Humidity

In Denver, Colorado, the average relative humidity in May is 52%.

Rainfall

The month with the most rainfall in Denver, Colorado, is May, when the rain falls for 18.2 days and typically aggregates up to 2.36" (60mm) of precipitation.

Snowfall

Months with snowfall in Denver are January through May, October through December. May is the last month it regularly snows. During 1.8 snowfall days, in May, Denver aggregates 2.72" (69mm) of snow. Throughout the year, in Denver, there are 43.5 snowfall days, and 35.67" (906mm) of snow is accumulated.

Daylight

In Denver, the average length of the day in May is 14h and 23min.
On the first day of May, sunrise is at 6:00 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:21 pm MDT.

Sunshine

In Denver, the average sunshine in May is 11.2h.

UV index

In Denver, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Denver?

In Denver, Colorado, in May, the average high-temperature is 65.8°F (18.8°C), and the average low-temperature is 42.4°F (5.8°C).

What is the average humidity in May in Denver?

In May, the average relative humidity is 52%.

What is the rainiest month in Denver?

The month with the most rainfall in Denver, Colorado, is May, when the rain falls for 18.2 days and typically aggregates up to 2.36" (60mm) of precipitation.

How much does it rain in Denver in May?

In May, in Denver, Colorado, the rain falls for 18.2 days. Throughout May, 2.36" (60mm) of precipitation is accumulated.

What is the last month it snows in Denver?

May is the last month it regularly snows. During 1.8 snowfall days, in May, Denver aggregates 2.72" (69mm) of snow.

What is the average length of the day in May in Denver?

In May, the average day length in Denver, Colorado, is 14h and 23min.

When is the sunrise / sunset in May in Denver?

In May, on the first day of the month, sunrise is at 6:00 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 8:21 pm MDT.

How long on average sun shines in May in Denver?

In Denver, Colorado, the average sunshine duration in May is 11.2h.

What is the UV index intensity in May in Denver?

In May, the average daily maximum UV index in Denver, Colorado, is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Denver, CO

Average temperature in May - Denver, CO
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is December (39.9°F).

  • Average low temperature in May: 42.4°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (20.7°F).

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Average pressure in May
Denver, CO

Average pressure in May - Denver, CO
  • Average pressure in May: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is April (29.91"Hg).

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Average wind speed in May
Denver, CO

Average wind speed in May - Denver, CO
  • Average wind speed in May: 5.9mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are August and September (5.7mph).

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Average humidity in May
Denver, CO

Average humidity in May - Denver, CO
  • Average humidity in May: 52%

The month with the highest relative humidity is February (66%).
The month with the lowest relative humidity is June (41%).

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Average rainfall in May
Denver, CO

Average rainfall in May - Denver, CO
  • Average rainfall in May: 2.36"

The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are January and December (0.39").

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Average rainfall days in May
Denver, CO

Average rainfall days in May - Denver, CO
  • Average rainfall days in May: 18.2 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is January (3.7 days).

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Average snowfall in May
Denver, CO

Average snowfall in May - Denver, CO
  • Average snowfall in May: 2.72"

The month with the highest snowfall is March (6.26").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in May
Denver, CO

Average snowfall days in May - Denver, CO
  • Average snowfall days in May: 1.8 days

The month with the highest number of snowfall days is February (9.3 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in May /
Average sunshine in May
Denver, CO

Average daylight in May / Average sunshine in May - Denver, CO
  • Average daylight in May: 14h and 23min

The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).

  • Average sunshine in May: 11h and 12min

The months with the most sunshine are June, July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 6h and 54min).

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Average sunshine days in May
Denver, CO

Average sunshine days in May - Denver, CO
  • Average sunshine days in May: 9.1 days

The month with the most sunshine days is November (23 days).
The month with the least sunshine days is July (5.6 days).

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Average UV index in May
Denver, CO

Average UV index in May - Denver, CO
  • Average UV index in May: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in May
Denver, CO

Average cloud cover in May - Denver, CO
  • Average cloud cover in May: 25

The month with the most cloud cover is April (Cloud cover 26).
The month with the least cloud cover is September (Cloud cover 15).

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Average visibility in May
Denver, CO

Average visibility in May - Denver, CO
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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