April weather forecast
Banner, WY

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Weather in April

April in Banner, Wyoming, is a frosty spring month, with an average temperature fluctuating between 30.4°F (-0.9°C) and 47.1°F (8.4°C).

Temperature

As April begins, there's a slight increase in the average high-temperature, moving from a wintry 40.6°F (4.8°C) in March to a chilly 47.1°F (8.4°C). Throughout the April nights, Banner encounters a low-temperature of 30.4°F (-0.9°C).

Humidity

The average relative humidity in April is 69%.

Rainfall

In April, the rain falls for 17.6 days. Throughout April, 2.72" (69mm) of precipitation is accumulated. In Banner, during the entire year, the rain falls for 165.2 days and collects up to 21.22" (539mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Banner. April is the month with the most snowfall. Snow falls for 8.6 days and accumulates 8.7" (221mm) of snow.

Daylight

The average length of the day in April in Banner is 13h and 31min.
On the first day of April, sunrise is at 6:46 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:11 pm MDT.

Sunshine

The average sunshine in April is 9.7h.

UV index

The months with the lowest UV index in Banner are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In April, the maximum UV index of 2 suggests this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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Frequently asked questions

What is the temperature in April in Banner?

In April, in Banner, the average high-temperature is 47.1°F (8.4°C), and the average low-temperature is 30.4°F (-0.9°C).

What is the average humidity in April in Banner?

In April, the average relative humidity is 69%.

How many days does it rain in April in Banner?

In Banner, during April, the rain falls for 17.6 days and regularly aggregates up to 2.72" (69mm) of precipitation.

What is the snowiest month in Banner?

The month with the most snowfall is April, when snow falls for 8.6 days and typically aggregates up to 8.7" (221mm) of snow.

How many days does it snow in April in Banner?

In April, in Banner, it is snowing for 8.6 days. Throughout April, 8.7" (221mm) of snow is accumulated.

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

In April, the average day length is 13h and 31min.

When are sunrise and sunset in April in Banner?

On the first day of April in Banner, Wyoming, sunrise is at 6:46 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 5:57 am and sunset at 8:11 pm MDT.

How many hours of sunshine does Banner have in April?

In Banner, the average sunshine duration in April is 9.7h.

When is the lowest UV index in Banner?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Banner, Wyoming.

How high is the UV index in April in Banner?

The average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Banner, WY

Average temperature in April - Banner, WY
  • Average high temperature in April: 47.1°F

The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is February (29.1°F).

  • Average low temperature in April: 30.4°F

The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is February (14.4°F).

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Average pressure in April
Banner, WY

Average pressure in April - Banner, WY
  • Average pressure in April: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in April
Banner, WY

Average wind speed in April - Banner, WY
  • Average wind speed in April: 7.6mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in April
Banner, WY

Average humidity in April - Banner, WY
  • Average humidity in April: 69%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (46%).

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Average rainfall in April
Banner, WY

Average rainfall in April - Banner, WY
  • Average rainfall in April: 2.72"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (0.75").

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Average rainfall days in April
Banner, WY

Average rainfall days in April - Banner, WY
  • Average rainfall days in April: 17.6 days

The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (7.5 days).

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Average snowfall in April
Banner, WY

Average snowfall in April - Banner, WY
  • Average snowfall in April: 8.7"

The month with the highest snowfall is April (8.7").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in April
Banner, WY

Average snowfall days in April - Banner, WY
  • Average snowfall days in April: 8.6 days

The month with the highest number of snowfall days is February (15.8 days).
The 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
Banner, WY

Average daylight in April / Average sunshine in April - Banner, WY
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 9h and 4min

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

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Average sunshine days in April
Banner, WY

Average sunshine days in April - Banner, WY
  • Average sunshine days in April: 6.8 days

The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is May (5.8 days).

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Average UV index in April
Banner, WY

Average UV index in April - Banner, WY
  • Average UV index in April: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in April
Banner, WY

Average cloud cover in April - Banner, WY
  • Average cloud cover in April: 37

The months with the most cloud cover are February and April (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in April
Banner, WY

Average visibility in April - Banner, WY
  • 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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Banner, Wyoming, USA

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