May weather forecast
Colona, IL

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Weather in May

The last month of the spring, May, is a pleasant month in Colona, Illinois, with an average temperature fluctuating between 53.4°F (11.9°C) and 70.3°F (21.3°C).

Temperature

In Colona, stepping into May brings a temperature increase, moving up from April's refreshing 59°F (15°C) to a pleasant 70.3°F (21.3°C). An average low-temperature of 53.4°F (11.9°C) is observed in Colona during the May nights.

Humidity

The average relative humidity in May is 77%.

Rainfall

The month with the most rainfall is May, when the rain falls for 13.4 days and typically aggregates up to 1.61" (41mm) of precipitation.

Snowfall

May through August are months without snowfall.

Daylight

In Colona, the average length of the day in May is 14h and 32min.
On the first day of the month, sunrise is at 5:57 am and sunset at 7:59 pm. On the last day of May, in Colona, sunrise is at 5:30 am and sunset at 8:28 pm CDT.

Sunshine

In Colona, the average sunshine in May is 8.6h.

UV index

The average daily maximum UV index in May in Colona is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: An average UV index of 5 in May transforms into this advice:
Act with care - Obligation to protect against skin and eye damage is highlighted. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures in Colona?

In May, the average high-temperature and low-temperature in Colona are 70.3°F (21.3°C) and 53.4°F (11.9°C) respectively.

What is the average humidity in May in Colona?

In May, the average relative humidity in Colona, Illinois, is 77%.

What is the wettest month in Colona?

The month with the most rainfall in Colona is May, when the rain falls for 13.4 days and typically aggregates up to 1.61" (41mm) of precipitation.

How much does it rain in Colona in May?

In Colona, during May, the rain falls for 13.4 days and regularly aggregates up to 1.61" (41mm) of precipitation.

When it does not snow in Colona?

May through August are months without snowfall in Colona.

Does it snow in Colona in May?

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

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

The average day length in May in Colona is 14h and 32min.

When are sunrise and sunset in May in Colona?

On the first day of May in Colona, Illinois, sunrise is at 5:57 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 8:28 pm CDT.

How many hours of sunshine does Colona have in May?

In Colona, the average sunshine duration in May is 8.6h.

How high is the UV index in May in Colona?

The average daily maximum UV index in May in Colona is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
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
Colona, IL

Average temperature in May - Colona, IL
  • Average high temperature in May: 70.3°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in May: 53.4°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

Average pressure in May
Colona, IL

Average pressure in May - Colona, IL
  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Colona, IL

Average wind speed in May - Colona, IL
  • Average wind speed in May: 9mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in May
Colona, IL

Average humidity in May - Colona, IL
  • Average humidity in May: 77%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Colona, IL

Average rainfall in May - Colona, IL
  • Average rainfall in May: 1.61"

The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.35").

Average rainfall days in May
Colona, IL

Average rainfall days in May - Colona, IL
  • Average rainfall days in May: 13.4 days

The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in May
Colona, IL

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

The month with the highest snowfall is January (1.26").
The months with the least snowfall are May, June, July and August (0").

Average snowfall days in May
Colona, IL

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

The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in May / Average sunshine in May - Colona, IL
  • 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 12min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in May
Colona, IL

Average sunshine days in May - Colona, IL
  • Average sunshine days in May: 14.6 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (14.4 days).

Average UV index in May
Colona, IL

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in May
Colona, IL

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

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in May
Colona, IL

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

Colona, Illinois, USA

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