May weather forecast and climate
Evanston, IL

Weather in May

The last month of the spring, May, is a moderate month in Evanston, Illinois, with average temperature varying between 49.6°F (9.8°C) and 59.7°F (15.4°C).

Temperature

In May, the average high-temperature rises, from a frosty 49.8°F (9.9°C) in April, to a mild 59.7°F (15.4°C). In Evanston, in May, the average low-temperature is 49.6°F (9.8°C).

Humidity

In Evanston, the average relative humidity is 79%.

Rainfall

In May, in Evanston, the rain falls for 17.2 days. Throughout May, 4.41" (112mm) of precipitation is accumulated. In Evanston, during the entire year, the rain falls for 154.1 days and collects up to 33.31" (846mm) of precipitation.

Snowfall

In Evanston snow does not fall through September.

Daylight

In Evanston, the average length of the day is 14.6h.

Sunshine

The average sunshine in May is 8.7h.

UV index

In May, the average daily maximum UV index in Evanston is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In May, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
[Resources]

FAQ

What is the average humidity in May in Evanston?

In Evanston, the average relative humidity in May is 79%.

How much does it rain in Evanston in May?

In Evanston, in May, during 17.2 rainfall days, 4.41" (112mm) of precipitation is typically accumulated.

When it does not snow in Evanston?

May through September are months without snowfall in Evanston.

Does it snow in Evanston in May?

In May, in Evanston, it doesn't snow. April is the latest month when it typically snows.

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

The average length of the day in May in Evanston, Illinois, is 14.6h.

How many hours of sunshine does Evanston have in May?

In Evanston, the average sunshine in May is 8.7h.

How high is the UV index in May in Evanston?

In May, the average daily maximum UV index in Evanston is 4. A UV Index estimate of 3 to 5 represents a medium health risk from the exposure to the Sun's UV radiation.

Average temperature in May
Evanston, IL

Average temperature in May - Evanston, IL
  • Average high temperature in May: 59.7°F

The warmest month (with the highest average high temperature) is August (77°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in May: 49.6°F

Months with the highest average low temperature are July and August (68°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).

[Resources]

Average pressure in May
Evanston, IL

Average pressure in May - Evanston, IL
  • Average pressure in May: 29.96"

The month with the highest atmospheric pressure is January (30.1").
The month with the lowest atmospheric pressure is June (29.92").

[Resources]

Average wind speed in May
Evanston, IL

Average wind speed in May - Evanston, IL
  • Average wind speed in May: 9.6mph

The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest months (with the lowest average wind speed) are July and August (8mph).

[Resources]

Average humidity in May
Evanston, IL

Average humidity in May - Evanston, IL
  • Average humidity in May: 79%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (73%).

[Resources]

Average rainfall in May
Evanston, IL

Average rainfall in May - Evanston, IL
  • Average rainfall in May: 4.41"

The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is December (1.38").

[Resources]

Average rainfall days in May
Evanston, IL

Average rainfall days in May - Evanston, IL
  • Average rainfall days in May: 17.2 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (5.6 days).

[Resources]

Average snowfall in May
Evanston, IL

Average snowfall in May - Evanston, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (3.58").
Months with the least snowfall are May, June, July, August and September (0").

[Resources]

Average snowfall days in May
Evanston, IL

Average snowfall days in May - Evanston, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (11.6 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

[Resources]

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

Average daylight in May / Average sunshine in May - Evanston, IL
  • Average daylight in May: 14.6h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in May: 8.7h

Months with the most sunshine are July and August (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 3.6h).

[Resources]

Average sunshine days in May
Evanston, IL

Average sunshine days in May - Evanston, IL
  • Average sunshine days in May: 11.5 days

The month with the most sunshine days is December (15.3 days).
Months with the least sunshine days are June and July (10.9 days).

[Resources]

Average UV index in May
Evanston, IL

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

Months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in May
Evanston, IL

Average cloud cover in May - Evanston, IL
  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 62).
Months with the least cloud cover are July and August (Cloud cover 27).

[Resources]

Average visibility in May
Evanston, IL

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location