May weather forecast
Woodstock, IL

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Weather in May

May, the last month of the spring in Woodstock, is an enjoyable month, with an average temperature varying between 49.6°F (9.8°C) and 66.9°F (19.4°C).

Temperature

As Woodstock transitions into May, a rise in the average high-temperature is observed, moving from a fresh 54.9°F (12.7°C) in April to a comfortable 66.9°F (19.4°C). Woodstock records an average temperature drop to a frosty 49.6°F (9.8°C) in May.

Humidity

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

Rainfall

In Woodstock, in May, it is raining for 17.7 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 146.8 rainfall days, and 22.83" (580mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Woodstock, Illinois. May is the last month it regularly snows in Woodstock. During 0.2 snowfall days, in May, Woodstock aggregates 0.08" (2mm) of snow. Throughout the year, there are 51.1 snowfall days, and 13.46" (342mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 37min.
On the first day of the month, sunrise is at 5:47 am and sunset at 7:53 pm. On the last day of May, in Woodstock, sunrise is at 5:19 am and sunset at 8:23 pm CDT.

Sunshine

In Woodstock, the average sunshine in May is 8.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index, 5 in May, converts into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Woodstock in May?

Woodstock in May has an average high-temperature of 66.9°F (19.4°C) and an average low-temperature of 49.6°F (9.8°C).

What is the average humidity in May in Woodstock?

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

How much does it rain in Woodstock in May?

In Woodstock, in May, it is raining for 17.7 days, with typically 2.64" (67mm) of accumulated precipitation.

What is the last month it snows in Woodstock?

May is the last month it regularly snows in Woodstock, Illinois. During 0.2 snowfall days, in May, Woodstock aggregates 0.08" (2mm) of snow.

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

In Woodstock, Illinois, the average day length in May is 14h and 37min.

When are sunrise and sunset in May in Woodstock?

On the first day of May in Woodstock, Illinois, sunrise is at 5:47 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:23 pm CDT.

How many hours of sunshine does Woodstock have in May?

In May, the average sunshine duration is 8.4h.

When is the highest UV index in Woodstock?

May through August, with an average maximum UV index of 5, are months with the highest UV index in Woodstock.

What is the UV index intensity in May in Woodstock?

In May, the average daily maximum UV index in Woodstock, Illinois, is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Woodstock, IL

Average temperature in May - Woodstock, IL
  • Average high temperature in May: 66.9°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in May: 49.6°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (13.8°F).

Average pressure in May
Woodstock, IL

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Woodstock, IL

Average wind speed in May - Woodstock, IL
  • Average wind speed in May: 8.3mph

The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in May
Woodstock, IL

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

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in May
Woodstock, IL

Average rainfall in May - Woodstock, IL
  • Average rainfall in May: 2.64"

The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is December (1.02").

Average rainfall days in May
Woodstock, IL

Average rainfall days in May - Woodstock, IL
  • Average rainfall days in May: 17.7 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (4.7 days).

Average snowfall in May
Woodstock, IL

Average snowfall in May - Woodstock, IL
  • Average snowfall in May: 0.08"

The month with the highest snowfall is January (3.7").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in May
Woodstock, IL

Average snowfall days in May - Woodstock, IL
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Woodstock, IL
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

Average sunshine days in May
Woodstock, IL

Average sunshine days in May - Woodstock, IL
  • Average sunshine days in May: 10.8 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (10 days).

Average UV index in May
Woodstock, IL

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

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in May
Woodstock, IL

Average cloud cover in May - Woodstock, IL
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is September (Cloud cover 34).

Average visibility in May
Woodstock, IL

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

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

Woodstock, Illinois, USA

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