April weather forecast and climate
Westminster, CO

Weather in April

April in Westminster, Colorado, is a mild spring month, with temperature in the range of an average low of 35.6°F (2°C) and an average high of 59.7°F (15.4°C).

Temperature

In Westminster, the average high-temperature slightly increases, from a cool 53.2°F (11.8°C) in March, to a mild 59.7°F (15.4°C). The average low-temperature, in April, is 35.6°F (2°C).

Humidity

The average relative humidity in April is 50%.

Rainfall

In April, in Westminster, the rain falls for 11.6 days. Throughout April, 1.26" (32mm) of precipitation is accumulated. Throughout the year, there are 101.9 rainfall days, and 10.91" (277mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Westminster. The month with the most snowfall in Westminster is April when snow falls for 4.3 days and typically aggregates up to 5.55" (141mm) of snow.

Daylight

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

Sunshine

In April, the average sunshine in Westminster, Colorado, is 10.8h.

UV index

In Westminster, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 3 in April interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. 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 average humidity in April in Westminster?

In Westminster, the average relative humidity in April is 50%.

How many days does it rain in April in Westminster?

In Westminster, in April, it is raining for 11.6 days, with typically 1.26" (32mm) of accumulated precipitation.

When does it snow the most in Westminster?

April is the month with the most snowfall. Snow falls for 4.3 days and accumulates 5.55" (141mm) of snow.

How many days does it snow in April in Westminster?

In Westminster, Colorado, during April, snow falls for 4.3 days and regularly aggregates up to 5.55" (141mm) of snow.

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

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

How many hours of sunshine does Westminster have in April?

In Westminster, the average sunshine in April is 10.8h.

What is the UV index reading in April in Westminster?

The average daily maximum UV index in April in Westminster is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in April
Westminster, CO

Average temperature in April - Westminster, CO
  • Average high temperature in April: 59.7°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (41.2°F).

  • Average low temperature in April: 35.6°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in April
Westminster, CO

Average pressure in April - Westminster, CO
  • Average pressure in April: 29.91"

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

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Average wind speed in April
Westminster, CO

Average wind speed in April - Westminster, CO
  • Average wind speed in April: 6.7mph

The windiest month (with the highest average wind speed) is April (6.7mph).
The calmest months (with the lowest average wind speed) are August, September and December (5.8mph).

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Average humidity in April
Westminster, CO

Average humidity in April - Westminster, CO
  • Average humidity in April: 50%

The month with the highest relative humidity is February (65%).
Months with the lowest relative humidity are June and August (40%).

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Average rainfall in April
Westminster, CO

Average rainfall in April - Westminster, CO
  • Average rainfall in April: 1.26"

The wettest month (with the highest rainfall) is May (2.05").
The driest months (with the least rainfall) are January and December (0.35").

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Average rainfall days in April
Westminster, CO

Average rainfall days in April - Westminster, CO
  • Average rainfall days in April: 11.6 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (3.3 days).

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Average snowfall in April
Westminster, CO

Average snowfall in April - Westminster, CO
  • Average snowfall in April: 5.55"

The month with the highest snowfall is April (5.55").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in April
Westminster, CO

Average snowfall days in April - Westminster, CO
  • Average snowfall days in April: 4.3 days

The month with the highest number of snowfall days is February (9.4 days).
Months with the least snowfall days are June, July and August (0 days).

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

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

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 April: 10.8h

Months with the most sunshine are June and July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 6.7h).

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Average sunshine days in April
Westminster, CO

Average sunshine days in April - Westminster, CO
  • Average sunshine days in April: 13.4 days

The month with the most sunshine days is December (23.9 days).
The month with the least sunshine days is July (8.8 days).

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Average UV index in April
Westminster, CO

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

Months with the highest UV index are June, July and August (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 April
Westminster, CO

Average cloud cover in April - Westminster, CO
  • Average cloud cover in April: 26

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 April
Westminster, CO

Average visibility in April - Westminster, CO
  • Average visibility in April: 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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