May weather forecast
New Grand Chain, IL

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Weather in May

The last month of the spring, May, is a warm month in New Grand Chain, Illinois, with an average temperature ranging between max 75.7°F (24.3°C) and min 57.9°F (14.4°C).

Temperature

In New Grand Chain, the onset of May comes with an increased average high-temperature, moving from April's comfortable 66.6°F (19.2°C) to a warm 75.7°F (24.3°C). In New Grand Chain, the average low-temperature during the month of May is a refreshing 57.9°F (14.4°C).

Humidity

The months with the highest humidity are March and May, with an average relative humidity of 79%.

Rainfall

In New Grand Chain, in May, it is raining for 12.7 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 118.3 rainfall days, and 13.03" (331mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

The average length of the day in May is 14h and 11min.
On the first day of the month, sunrise is at 6:00 am and sunset at 7:45 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:10 pm CDT.

Sunshine

In May, the average sunshine is 9.1h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for New Grand Chain in May?

The average high-temperature, in May, in New Grand Chain, is 75.7°F (24.3°C), while the average low-temperature is 57.9°F (14.4°C).

What are the most humid months?

The months with the highest humidity are March and May, with an average relative humidity of 79%.

What is the average humidity in May?

The average relative humidity in May is 79%.

How much does it rain in May?

In New Grand Chain, in May, during 12.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When it does not snow?

In New Grand Chain, snow does not fall in April through October.

How many hours of daylight does New Grand Chain have in May?

In New Grand Chain, the average day length in May is 14h and 11min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:00 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:10 pm CDT.

How many hours of sunshine does New Grand Chain have in May?

In May, the average sunshine duration is 9.1h.

What is the month with the highest UV index in New Grand Chain?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

What is the UV index intensity in May?

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's 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
New Grand Chain, IL

Average temperature in May - New Grand Chain, IL
  • Average high temperature in May: 75.7°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in May: 57.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in May
New Grand Chain, IL

Average pressure in May - New Grand Chain, IL
  • Average pressure in May: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in May
New Grand Chain, IL

Average wind speed in May - New Grand Chain, IL
  • Average wind speed in May: 7.5mph

The windiest months (with the highest average wind speed) are January and February (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in May
New Grand Chain, IL

Average humidity in May - New Grand Chain, IL
  • Average humidity in May: 79%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
New Grand Chain, IL

Average rainfall in May - New Grand Chain, IL
  • Average rainfall in May: 1.34"

The wettest month (with the highest rainfall) is June (1.5").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in May
New Grand Chain, IL

Average rainfall days in May - New Grand Chain, IL
  • Average rainfall days in May: 12.7 days

The month with the highest number of rainy days is July (13.1 days).
The months with the least rainy days are January, February and December (7.3 days).

Average snowfall in May
New Grand Chain, IL

Average snowfall in May - New Grand Chain, IL
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
New Grand Chain, IL

Average snowfall days in May - New Grand Chain, IL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (3.3 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
New Grand Chain, IL

Average daylight in May / Average sunshine in May - New Grand Chain, IL
  • Average daylight in May: 14h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in May: 9h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

Average sunshine days in May
New Grand Chain, IL

Average sunshine days in May - New Grand Chain, IL
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is June (14.8 days).

Average UV index in May
New Grand Chain, IL

Average UV index in May - New Grand Chain, IL
  • Average UV index in May: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in May
New Grand Chain, IL

Average cloud cover in May - New Grand Chain, IL
  • Average cloud cover in May: 40

The months with the most cloud cover are January and February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).

Average visibility in May
New Grand Chain, IL

Average visibility in May - New Grand Chain, 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).

New Grand Chain, Illinois, USA

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