May weather forecast
Wellington, IL

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Weather in May

May, the last month of the spring in Wellington, is a pleasant month, with temperature in the range of an average low of 55°F (12.8°C) and an average high of 71.6°F (22°C).

Temperature

The onset of May marks an increase in the average high-temperature, moving from a mild 60.3°F (15.7°C) in April to an agreeable 71.6°F (22°C). During the nights in May, Wellington experiences a consistent average temperature of 55°F (12.8°C).

Humidity

In May, the average relative humidity in Wellington is 78%.

Rainfall

May is the month with the most rainfall in Wellington. Rain falls for 18.8 days and accumulates 4.06" (103mm) of precipitation.

Snowfall

In Wellington, Illinois, snow does not fall in May through October.

Daylight

The average length of the day in May in Wellington is 14h and 27min.
On the first day of the month, sunrise is at 5:48 am and sunset at 7:46 pm. On the last day of May, in Wellington, sunrise is at 5:22 am and sunset at 8:14 pm CDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

The average daily maximum UV index in May in Wellington, Illinois, is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: During May, 5 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Wellington?

In May, in Wellington, the average high-temperature is 71.6°F (22°C), and the average low-temperature is 55°F (12.8°C).

What is the average humidity in May in Wellington?

In Wellington, the average relative humidity in May is 78%.

What is the rainiest month in Wellington?

May is the month with the most rainfall in Wellington, Illinois. Rain falls for 18.8 days and accumulates 4.06" (103mm) of precipitation.

How much does it rain in Wellington in May?

In Wellington, Illinois, during May, the rain falls for 18.8 days and regularly aggregates up to 4.06" (103mm) of precipitation.

When it does not snow in Wellington?

May through October are months without snowfall in Wellington, Illinois.

Does it snow in Wellington in May?

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

How many hours of daylight does Wellington have in May?

In Wellington, the average day length in May is 14h and 27min.

When is the sunrise / sunset in May in Wellington?

In May, on the first day of the month, sunrise is at 5:48 am and sunset at 7:46 pm. On the last day of the month, in Wellington, sunrise is at 5:22 am and sunset at 8:14 pm CDT.

How long on average sun shines in May in Wellington?

The average sunshine duration in May in Wellington is 8.6h.

What is the UV index intensity in May in Wellington?

The average daily maximum UV index in May in Wellington is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Wellington, IL

Average temperature in May - Wellington, IL
  • Average high temperature in May: 71.6°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in May: 55°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in May
Wellington, IL

Average pressure in May - Wellington, IL
  • Average pressure in May: 29.96"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in May
Wellington, IL

Average wind speed in May - Wellington, IL
  • Average wind speed in May: 8.8mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in May
Wellington, IL

Average humidity in May - Wellington, IL
  • Average humidity in May: 78%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Wellington, IL

Average rainfall in May - Wellington, IL
  • Average rainfall in May: 4.06"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is December (1.73").

Average rainfall days in May
Wellington, IL

Average rainfall days in May - Wellington, IL
  • Average rainfall days in May: 18.8 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (6.8 days).

Average snowfall in May
Wellington, IL

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

The month with the highest snowfall is January (4.06").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in May
Wellington, IL

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

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Wellington, IL
  • Average daylight in May: 14h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in May
Wellington, IL

Average sunshine days in May - Wellington, IL
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is May (10.3 days).

Average UV index in May
Wellington, IL

Average UV index in May - Wellington, IL
  • Average UV index in May: 5

The 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).

Average cloud cover in May
Wellington, IL

Average cloud cover in May - Wellington, IL
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in May
Wellington, IL

Average visibility in May - Wellington, IL
  • Average visibility in May: 6mi

The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).

Wellington, Illinois, USA

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