May weather forecast
Evanston, WY

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Weather in May

May in Evanston offers more stable and warmer weather conditions than April, providing residents with an excellent opportunity to enjoy outdoor activities. Gone are the heavy snows of winter, with May registering a meagre 3.11" (79mm) of snowfall, a marked decline from April's total. This month typically sees the full bloom of local flora, providing a picturesque setting for walks and picnics. Expect to witness more sunshine as the city transitions into the early stages of summer. June is on the horizon, promising more sunshine and even more pleasant weather in Evanston.

Temperature

May brings an increase in the average high-temperature, progressing from a frosty 44.6°F (7°C) in April to a mild 56.7°F (13.7°C). May's average low-temperature reading in Evanston settles at an icy 35.4°F (1.9°C).

Humidity

The average relative humidity in May is 58%.

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. In May, it is snowing for 5.8 days. Throughout May, 3.11" (79mm) of snow is accumulated. In Evanston, during the entire year, snow falls for 99.3 days and aggregates up to 56.22" (1428mm) of snow.

Daylight

In Evanston, the average length of the day in May is 14h and 31min.
On the first day of May, sunrise is at 6:20 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:50 pm MDT.

Sunshine

The average sunshine in May is 11.1h.

UV index

The average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: A typical high UV index of 4 in May suggests the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.

Frequently asked questions

What are May temperatures in Evanston?

In May, the average high-temperature and low-temperature are 56.7°F (13.7°C) and 35.4°F (1.9°C) respectively.

What is the average humidity in May?

In Evanston, the average relative humidity in May is 58%.

What is the rainiest month?

The months with the most rainfall are April and May, with an average 1.38" (35mm) of precipitation.

How much does it rain in Evanston in May?

In Evanston, Wyoming, in May, during 11.9 rainfall days, 1.38" (35mm) of precipitation is typically accumulated.

How many days does it snow in May?

In Evanston, in May, snow falls for 5.8 days, with typically accumulated 3.11" (79mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 31min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 6:20 am and sunset at 8:21 pm. On the last day of the month, sunrise is at 5:53 am and sunset at 8:50 pm MDT.

How long on average sun shines in May?

In May, the average sunshine duration in Evanston is 11.1h.

How high is the UV index in May?

The average daily maximum UV index in May in Evanston is 4. A UV Index reading of 3 to 5 represents a moderate health threat 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 May
Evanston, WY

Average temperature in May - Evanston, WY
  • Average high temperature in May: 56.7°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 May: 35.4°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).

Average pressure in May
Evanston, WY

Average pressure in May - Evanston, WY
  • Average pressure in May: 29.9"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).

Average wind speed in May
Evanston, WY

Average wind speed in May - Evanston, WY
  • Average wind speed in May: 7.5mph

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).

Average humidity in May
Evanston, WY

Average humidity in May - Evanston, WY
  • Average humidity in May: 58%

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

Average rainfall in May
Evanston, WY

Average rainfall in May - Evanston, WY
  • Average rainfall in May: 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").

Average rainfall days in May
Evanston, WY

Average rainfall days in May - Evanston, WY
  • Average rainfall days in May: 11.9 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).

Average snowfall in May
Evanston, WY

Average snowfall in May - Evanston, WY
  • Average snowfall in May: 3.11"

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

Average snowfall days in May
Evanston, WY

Average snowfall days in May - Evanston, WY
  • Average snowfall days in May: 5.8 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).

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

Average daylight in May / Average sunshine in May - Evanston, WY
  • Average daylight in May: 14h and 3min

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 May: 11h and 1min

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).

Average sunshine days in May
Evanston, WY

Average sunshine days in May - Evanston, WY
  • Average sunshine days in May: 12.8 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).

Average UV index in May
Evanston, WY

Average UV index in May - Evanston, WY
  • Average UV index in May: 4

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).

Average cloud cover in May
Evanston, WY

Average cloud cover in May - Evanston, WY
  • Average cloud cover in May: 23

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

Average visibility in May
Evanston, WY

Average visibility in May - Evanston, WY
  • Average visibility in May: 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).

Evanston, Wyoming, USA

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