April weather forecast
Gillette, WY

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Weather in April

The approach of April in Gillette signifies the arrival of spring, matched with a significant rise in average temperatures reaching up to 52.3°F (11.3°C). This forecast can be quite deceptive as unexpected gusts of wind often bring in colder drafts. As the rainfall upsurges to its highest yearly count of 2.13" (54mm) in April, make sure to keep an umbrella handy. Alongside, the days start to stretch out granting more time for outdoor activities. The flowering beauty of Gillette is a sight to behold in April, making it a beautiful time to explore the city.

Temperature

The shift from March to April in Gillette sees a slight increase in the average high-temperature, transitioning from a chilly 44.6°F (7°C) to a fresh 52.3°F (11.3°C). Gillette, in April, witnesses an average low-temperature of 34.3°F (1.3°C).

Humidity

The average relative humidity in April is 64%.

Rainfall

In Gillette, in April, it is raining for 13 days, with typically 2.13" (54mm) of accumulated precipitation. Throughout the year, in Gillette, there are 108.9 rainfall days, and 15.59" (396mm) of precipitation is accumulated.

Snowfall

January through May, September through December are months with snowfall. April is the month with the most snowfall. Snow falls for 7.1 days and accumulates 3.82" (97mm) of snow.

Daylight

In Gillette, the average length of the day in April is 13h and 30min.
On the first day of April, sunrise is at 6:41 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:05 pm MDT.

Sunshine

In Gillette, the average sunshine in April is 9.2h.

UV index

January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 during April translates into the following directions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Gillette?

In April, the average high-temperature and low-temperature in Gillette are 52.3°F (11.3°C) and 34.3°F (1.3°C) respectively.

What is the average humidity in April in Gillette?

The average relative humidity in April is 64%.

How much does it rain in Gillette in April?

In Gillette, in April, it is raining for 13 days, with typically 2.13" (54mm) of accumulated precipitation.

When does it snow the most in Gillette?

The month with the most snowfall in Gillette is April, when snow falls for 7.1 days and typically aggregates up to 3.82" (97mm) of snow.

How many days does it snow in April in Gillette?

In Gillette, Wyoming, in April, during 7.1 snowfall days, 3.82" (97mm) of snow is typically accumulated.

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

The average day length in April in Gillette is 13h and 30min.

When is the sunrise / sunset in April in Gillette?

In April, on the first day of the month, sunrise is at 6:41 am and sunset at 7:29 pm. On the last day of the month, in Gillette, sunrise is at 5:52 am and sunset at 8:05 pm MDT.

How many hours of sunshine does Gillette have in April?

In April, the average sunshine duration in Gillette, Wyoming, is 9.2h.

What are the months with the lowest UV index in Gillette?

January, February, April, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Gillette.

How high is the UV index in April in Gillette?

In Gillette, Wyoming, the average daily maximum UV index in April is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
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
Gillette, WY

Average temperature in April - Gillette, WY
  • Average high temperature in April: 52.3°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (29.7°F).

  • Average low temperature in April: 34.3°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).

Average pressure in April
Gillette, WY

Average pressure in April - Gillette, WY
  • Average pressure in April: 29.91"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in April
Gillette, WY

Average wind speed in April - Gillette, WY
  • Average wind speed in April: 11.2mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.1mph).

Average humidity in April
Gillette, WY

Average humidity in April - Gillette, WY
  • Average humidity in April: 64%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (41%).

Average rainfall in April
Gillette, WY

Average rainfall in April - Gillette, WY
  • Average rainfall in April: 2.13"

The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.39").

Average rainfall days in April
Gillette, WY

Average rainfall days in April - Gillette, WY
  • Average rainfall days in April: 13 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (1.5 days).

Average snowfall in April
Gillette, WY

Average snowfall in April - Gillette, WY
  • Average snowfall in April: 3.82"

The month with the highest snowfall is April (3.82").
The months with the least snowfall are June, July and August (0").

Average snowfall days in April
Gillette, WY

Average snowfall days in April - Gillette, WY
  • Average snowfall days in April: 7.1 days

The month with the highest number of snowfall days is February (9.1 days).
The months with the least snowfall days are July and August (0 days).

Average daylight in April /
Average sunshine in April
Gillette, WY

Average daylight in April / Average sunshine in April - Gillette, 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 1min

The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).

Average sunshine days in April
Gillette, WY

Average sunshine days in April - Gillette, WY
  • Average sunshine days in April: 11.5 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is May (9.3 days).

Average UV index in April
Gillette, WY

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

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, April, November and December (UV index 2).

Average cloud cover in April
Gillette, WY

Average cloud cover in April - Gillette, WY
  • Average cloud cover in April: 41

The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 16).

Average visibility in April
Gillette, WY

Average visibility in April - Gillette, 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).

Gillette, Wyoming, USA

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