April weather forecast
Evanston, WY

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Weather in April

In April, Evanston experiences a strong surge in temperatures, marking a definitive departure from the previous month's cooler weather. April stands out starkly from March owing to its decrease in snowfall down to 8.03" (204mm), reflecting the accelerating progression of spring. As April unfolds, Evanston takes on a fresh appearance, with trees blossoming and residents spending more time outdoors, preparing for the warmer months ahead. Although April heralds the arrival of spring, residents should prepare for elements of fluctuating weather as May ushers in further changes.

Temperature

As Evanston enters April, the average high-temperature increases from the a cold 35.4°F (1.9°C) of March to a chilly 44.6°F (7°C). Throughout the month of April, Evanston observes an average nighttime temperature of 27.3°F (-2.6°C).

Humidity

In April, the average relative humidity is 70%.

Rainfall

The wettest months in Evanston are April and May, with an average 1.38" (35mm) of rainfall.

Snowfall

January through June, September through December are months with snowfall. In Evanston, during April, snow falls for 12.7 days and regularly aggregates up to 8.03" (204mm) of snow. In Evanston, Wyoming, during the entire year, snow falls for 99.3 days and aggregates up to 56.22" (1428mm) of snow.

Daylight

In April, the average length of the day in Evanston is 13h and 21min.
On the first day of the month, sunrise is at 7:05 am and sunset at 7:49 pm. On the last day of April, sunrise is at 6:21 am and sunset at 8:20 pm MDT.

Sunshine

The average sunshine in April is 9.8h.

UV index

The average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.
Note: An average UV index of 2 in April transforms into this advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

Is it cold in Evanston during April?

April temperatures in Evanston vary between a high-temperature of 44.6°F (7°C) and a low-temperature of 27.3°F (-2.6°C).

What is the average humidity in April in Evanston?

In Evanston, the average relative humidity in April is 70%.

What is the rainiest month in Evanston?

The wettest months in Evanston are April and May, with an average 1.38" (35mm) of rainfall.

How much does it rain in Evanston in April?

In Evanston, Wyoming, during April, the rain falls for 10.3 days and regularly aggregates up to 1.38" (35mm) of precipitation.

How many days does it snow in April in Evanston?

In Evanston, during April, snow falls for 12.7 days and regularly aggregates up to 8.03" (204mm) of snow.

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

In April, the average day length in Evanston is 13h and 21min.

When is the sunrise / sunset in April in Evanston?

In April, on the first day of the month, sunrise is at 7:05 am and sunset at 7:49 pm. On the last day of the month, in Evanston, sunrise is at 6:21 am and sunset at 8:20 pm MDT.

How long on average sun shines in April in Evanston?

The average sunshine duration in April in Evanston, Wyoming, is 9.8h.

What is the UV index intensity in April in Evanston?

The average daily maximum UV index in April in Evanston is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Evanston, WY

Average temperature in April - Evanston, WY
  • Average high temperature in April: 44.6°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (26.4°F).

  • Average low temperature in April: 27.3°F

The month with the highest average low temperature is July (51.6°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in April
Evanston, WY

Average pressure in April - Evanston, WY
  • Average pressure in April: 29.94"Hg

The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in April
Evanston, WY

Average wind speed in April - Evanston, WY
  • Average wind speed in April: 8.2mph

The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).

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Average humidity in April
Evanston, WY

Average humidity in April - Evanston, WY
  • Average humidity in April: 70%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is August (39%).

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Average rainfall in April
Evanston, WY

Average rainfall in April - Evanston, WY
  • Average rainfall in April: 1.38"

The wettest months (with the highest rainfall) are April and May (1.38").
The driest month (with the least rainfall) is August (0.51").

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Average rainfall days in April
Evanston, WY

Average rainfall days in April - Evanston, WY
  • Average rainfall days in April: 10.3 days

The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is February (5.5 days).

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Average snowfall in April
Evanston, WY

Average snowfall in April - Evanston, WY
  • Average snowfall in April: 8.03"

The month with the highest snowfall is March (10").
The months with the least snowfall are July and August (0").

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Average snowfall days in April
Evanston, WY

Average snowfall days in April - Evanston, WY
  • Average snowfall days in April: 12.7 days

The month with the highest number of snowfall days is February (16.3 days).
The months with the least snowfall days are July and August (0 days).

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

Average daylight in April / Average sunshine in April - Evanston, WY
  • Average daylight in April: 13h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in April: 9h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

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Average sunshine days in April
Evanston, WY

Average sunshine days in April - Evanston, WY
  • Average sunshine days in April: 10.8 days

The month with the most sunshine days is June (19.5 days).
The month with the least sunshine days is April (10.8 days).

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Average UV index in April
Evanston, WY

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

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are November and December (UV index 1).

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Average cloud cover in April
Evanston, WY

Average cloud cover in April - Evanston, WY
  • Average cloud cover in April: 33

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 10).

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Average visibility in April
Evanston, WY

Average visibility in April - Evanston, WY
  • Average visibility in April: 6mi

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).

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Evanston, Wyoming, USA

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