May weather forecast and climate
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

The last month of the spring, May, is an enjoyable month in Denver, Colorado, with average temperature ranging between min 42.4°F (5.8°C) and max 65.8°F (18.8°C).

Temperature

In Denver, the average high-temperature marginally rises, from a moderate 57.2°F (14°C) in April, to an enjoyable 65.8°F (18.8°C). In May, in Denver, the average low-temperature is 42.4°F (5.8°C).

Humidity

In Denver, the average relative humidity is 52%.

Rainfall

May is the month with the most rainfall in Denver. Rain falls for 18.2 days and accumulates 2.36" (60mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. May is the last month it regularly snows in Denver, Colorado. During 1.8 snowfall days, Denver aggregates 2.72" (69mm) of snow. In Denver, Colorado, during the entire year, snow falls for 43.5 days, and aggregates up to 35.67" (906mm) of snow.

Daylight

In Denver, the average length of the day in May is 14.4h.

Sunshine

In Denver, the average sunshine is 11.2h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for average individuals.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. 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 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in May in Denver?

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

How many days does it rain in May in Denver?

In Denver, in May, during 18.2 rainfall days, 2.36" (60mm) of precipitation is typically accumulated.

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.

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.

How many hours of daylight does Denver have in May?

In Denver, Colorado, the average length of the day in May is 14.4h.

How long on average sun shines in May in Denver?

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

What is the UV index intensity in May in Denver?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.

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"

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

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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").
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).
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: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 11.2h

Months with the most sunshine are June, July and August (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.9h).

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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

Months with the highest UV index are June and July (UV index 6).
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

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

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