April weather forecast
Derby, CO

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Weather in April

April in Derby, Colorado, is a mild spring month, with temperature in the range of an average high of 60.3°F (15.7°C) and an average low of 36.1°F (2.3°C).

Temperature

April's arrival brings a slight change in high-temperatures, adjusting from a cool 54.1°F (12.3°C) in March to a moderate 60.3°F (15.7°C). The significant decline in Derby's temperature, from day to night, averages of 36.1°F (2.3°C) in April.

Humidity

The average relative humidity in April in Derby is 49%.

Rainfall

In Derby, during April, the rain falls for 5.3 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Derby, during the entire year, the rain falls for 48.3 days and collects up to 3.19" (81mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Derby. In Derby, Colorado, in April, during 2.1 snowfall days, 0.91" (23mm) of snow is typically accumulated. In Derby, during the entire year, snow falls for 19.6 days and aggregates up to 8.5" (216mm) of snow.

Daylight

In Derby, the average length of the day in April is 13h and 17min.
On the first day of April in Derby, Colorado, sunrise is at 6:42 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:53 pm MDT.

Sunshine

The average sunshine in April is 10.9h.

UV index

The average daily maximum UV index in April in Derby is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 in April translates into these instructions:
Act with care - The need to guard against sun damage is communicated. When the Sun is at its strongest around midday, find shade and limit exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
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Frequently asked questions

What is the average April temperature in Derby?

In April, the average high-temperature and low-temperature in Derby, Colorado, are 60.3°F (15.7°C) and 36.1°F (2.3°C) respectively.

What is the average humidity in April in Derby?

In Derby, Colorado, the average relative humidity in April is 49%.

How much does it rain in Derby in April?

In Derby, Colorado, in April, it is raining for 5.3 days, with typically 0.24" (6mm) of accumulated precipitation.

How many days does it snow in April in Derby?

In Derby, during April, snow falls for 2.1 days and regularly aggregates up to 0.91" (23mm) of snow.

How many hours of daylight does Derby have in April?

In Derby, Colorado, the average day length in April is 13h and 17min.

When are sunrise and sunset in April in Derby?

On the first day of April, sunrise is at 6:42 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 7:53 pm MDT.

How many hours of sunshine does Derby have in April?

In April, the average sunshine duration is 10.9h.

What is the UV index intensity in April in Derby?

The average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Derby, CO

Average temperature in April - Derby, CO
  • Average high temperature in April: 60.3°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in April: 36.1°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is December (21.9°F).

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Average pressure in April
Derby, CO

Average pressure in April - Derby, CO
  • Average pressure in April: 29.91"Hg

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

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Average wind speed in April
Derby, CO

Average wind speed in April - Derby, CO
  • Average wind speed in April: 6.9mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is December (5.8mph).

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Average humidity in April
Derby, CO

Average humidity in April - Derby, CO
  • Average humidity in April: 49%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in April
Derby, CO

Average rainfall in April - Derby, CO
  • Average rainfall in April: 0.24"

The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are January and December (0.08").

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Average rainfall days in April
Derby, CO

Average rainfall days in April - Derby, CO
  • Average rainfall days in April: 5.3 days

The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is February (1.2 days).

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Average snowfall in April
Derby, CO

Average snowfall in April - Derby, CO
  • Average snowfall in April: 0.91"

The month with the highest snowfall is October (1.42").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Derby, CO

Average snowfall days in April - Derby, CO
  • Average snowfall days in April: 2.1 days

The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in April / Average sunshine in April - Derby, CO
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in April: 10h and 5min

The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 42min).

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Average sunshine days in April
Derby, CO

Average sunshine days in April - Derby, CO
  • Average sunshine days in April: 22.8 days

The month with the most sunshine days is December (28.5 days).
The month with the least sunshine days is July (19.6 days).

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Average UV index in April
Derby, CO

Average UV index in April - Derby, CO
  • Average UV index in April: 3

The months with the highest UV index are June, July and August (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 April
Derby, CO

Average cloud cover in April - Derby, CO
  • Average cloud cover in April: 25

The months with the most cloud cover are February, April and May (Cloud cover 25).
The month with the least cloud cover is September (Cloud cover 14).

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Average visibility in April
Derby, CO

Average visibility in April - Derby, CO
  • Average visibility in April: 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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Derby, Colorado, USA

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