April 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 April

April is a cold spring month in Dillon, Colorado, with average temperature varying between 13.5°F (-10.3°C) and 35.2°F (1.8°C).

Temperature

In April, the average high-temperature is essentially the same as in March - a wintry 35.2°F (1.8°C). In April, in Dillon, the average low-temperature is 13.5°F (-10.3°C).

Humidity

In April, the average relative humidity in Dillon is 83%.

Rainfall

In April, the rain falls for 6.7 days. Throughout April, 2.44" (62mm) of precipitation is accumulated. In Dillon, during the entire year, the rain falls for 111.5 days and collects up to 23.19" (589mm) of precipitation.

Snowfall

Months with snowfall in Dillon are January through December. April is the month with the most snowfall in Dillon. Snow falls for 21 days and accumulates 18.27" (464mm) of snow.

Daylight

The average length of the day in April is 13.3h.

Sunshine

The average sunshine in Dillon, Colorado, is 8.6h.

UV index

In April, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in April interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in April in Dillon?

The average relative humidity in April in Dillon, Colorado, is 83%.

How many days does it rain in April in Dillon?

In Dillon, in April, it is raining for 6.7 days, with typically 2.44" (62mm) of accumulated precipitation.

What is the snowiest month in Dillon?

April is the month with the most snowfall in Dillon. Snow falls for 21 days and accumulates 18.27" (464mm) of snow.

How much does it snow in Dillon in April?

In Dillon, Colorado, during April, snow falls for 21 days and regularly aggregates up to 18.27" (464mm) of snow.

What is the average length of the day in April in Dillon?

In April, the average length of the day is 13.3h.

How many hours of sunshine does Dillon have in April?

The average sunshine in April in Dillon is 8.6h.

How high is the UV index in April in Dillon?

The average daily maximum UV index in April in Dillon is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in April
Dillon, CO

Average temperature in April - Dillon, CO
  • Average high temperature in April: 35.2°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 April: 13.5°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).

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Average pressure in April
Dillon, CO

Average pressure in April - Dillon, CO
  • Average pressure in April: 29.93"

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

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Average wind speed in April
Dillon, CO

Average wind speed in April - Dillon, CO
  • Average wind speed in April: 6.5mph

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).

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Average humidity in April
Dillon, CO

Average humidity in April - Dillon, CO
  • Average humidity in April: 83%

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

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Average rainfall in April
Dillon, CO

Average rainfall in April - Dillon, CO
  • Average rainfall in April: 2.44"

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

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Average rainfall days in April
Dillon, CO

Average rainfall days in April - Dillon, CO
  • Average rainfall days in April: 6.7 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).

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Average snowfall in April
Dillon, CO

Average snowfall in April - Dillon, CO
  • Average snowfall in April: 18.27"

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

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Average snowfall days in April
Dillon, CO

Average snowfall days in April - Dillon, CO
  • Average snowfall days in April: 21 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).

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

Average daylight in April / Average sunshine in April - Dillon, CO
  • Average daylight in April: 13.3h

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 April: 8.6h

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

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Average sunshine days in April
Dillon, CO

Average sunshine days in April - Dillon, CO
  • Average sunshine days in April: 7.2 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).

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Average UV index in April
Dillon, CO

Average UV index in April - Dillon, CO
  • Average UV index in April: 2

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).

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Average cloud cover in April
Dillon, CO

Average cloud cover in April - Dillon, CO
  • Average cloud cover in April: 45

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

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Average visibility in April
Dillon, CO

Average visibility in April - Dillon, CO
  • Average visibility in April: 4mi

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).

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