May weather forecast and climate
Dillon, CO

The brown and golden trees near the iconic Dillon reservoir in Colorado
The brown and golden trees near the iconic Dillon reservoir in Colorado

Weather in May

The last month of the spring, May, is a chilly month in Dillon, Colorado, with average temperature ranging between min 23.7°F (-4.6°C) and max 46.8°F (8.2°C).

Temperature

In Dillon, Colorado, the average high-temperature in May rises, from a cold 35.2°F (1.8°C) in April, to a chilly 46.8°F (8.2°C). The average low-temperature, in Dillon, is 23.7°F (-4.6°C).

Humidity

The average relative humidity in Dillon, Colorado, is 70%.

Rainfall

In Dillon, in May, it is raining for 13.3 days, with typically 2.99" (76mm) of accumulated precipitation. In Dillon, during the entire year, the rain falls for 111.5 days and collects up to 23.19" (589mm) of precipitation.

Snowfall

January through December are months with snowfall in Dillon. In Dillon, in May, during 18.1 snowfall days, 16.61" (422mm) of snow is typically accumulated. In Dillon, Colorado, during the entire year, snow falls for 149 days, and aggregates up to 108.54" (2757mm) of snow.

Daylight

In Dillon, the average length of the day is 14.4h.

Sunshine

In May, the average sunshine in Dillon is 10.2h.

UV index

In Dillon, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
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 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.
[Resources]

FAQ

What is the average humidity in May in Dillon?

In Dillon, the average relative humidity in May is 70%.

How much does it rain in Dillon in May?

In May, in Dillon, the rain falls for 13.3 days. Throughout May, 2.99" (76mm) of precipitation is accumulated.

How many days does it snow in May in Dillon?

In Dillon, Colorado, during May, snow falls for 18.1 days and regularly aggregates up to 16.61" (422mm) of snow.

How many hours of daylight does Dillon have in May?

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

How many hours of sunshine does Dillon have in May?

The average sunshine in May in Dillon, Colorado, is 10.2h.

How high is the UV index in May in Dillon?

The average daily maximum UV index in May in Dillon, Colorado, is 3. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in May
Dillon, CO

Average temperature in May - Dillon, CO
  • Average high temperature in May: 46.8°F

The warmest month (with the highest average high temperature) is July (67.1°F).
The month with the lowest average high temperature is December (22.5°F).

  • Average low temperature in May: 23.7°F

The month with the highest average low temperature is July (39.7°F).
The coldest month (with the lowest average low temperature) is December (0.9°F).

[Resources]

Average pressure in May
Dillon, CO

Average pressure in May - Dillon, CO
  • Average pressure in May: 29.94"

The month with the highest atmospheric pressure is January (30.19").
The month with the lowest atmospheric pressure is April (29.93").

[Resources]

Average wind speed in May
Dillon, CO

Average wind speed in May - Dillon, CO
  • Average wind speed in May: 6.2mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

[Resources]

Average humidity in May
Dillon, CO

Average humidity in May - Dillon, CO
  • Average humidity in May: 70%

The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is June (53%).

[Resources]

Average rainfall in May
Dillon, CO

Average rainfall in May - Dillon, CO
  • Average rainfall in May: 2.99"

The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.06").

[Resources]

Average rainfall days in May
Dillon, CO

Average rainfall days in May - Dillon, CO
  • Average rainfall days in May: 13.3 days

The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (2.8 days).

[Resources]

Average snowfall in May
Dillon, CO

Average snowfall in May - Dillon, CO
  • Average snowfall in May: 16.61"

The month with the highest snowfall is April (18.27").
The month with the least snowfall is July (0.47").

[Resources]

Average snowfall days in May
Dillon, CO

Average snowfall days in May - Dillon, CO
  • Average snowfall days in May: 18.1 days

The month with the highest number of snowfall days is April (21 days).
The month with the least snowfall days is July (1.8 days).

[Resources]

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

Average daylight in May / Average sunshine in May - Dillon, CO
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 10.2h

The month with the most sunshine is June (Average sunshine: 11.4h).
The month with the least sunshine is February (Average sunshine: 5.4h).

[Resources]

Average sunshine days in May
Dillon, CO

Average sunshine days in May - Dillon, CO
  • Average sunshine days in May: 7.1 days

The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (5.3 days).

[Resources]

Average UV index in May
Dillon, CO

Average UV index in May - Dillon, CO
  • Average UV index in May: 3

Months with the highest UV index are July and August (UV index 4).
Months with the lowest UV index are February, November and December (UV index 1).

[Resources]

Average cloud cover in May
Dillon, CO

Average cloud cover in May - Dillon, CO
  • Average cloud cover in May: 34

The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 19).

[Resources]

Average visibility in May
Dillon, CO

Average visibility in May - Dillon, CO
  • Average visibility in May: 5mi

Months with the highest visibility are June, July, August, September and October (6mi).
Months with the lowest visibility are January, February, March, April and December (4mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location