May weather forecastGilson, IL

May

Weather in May

May, the last month of the spring in Gilson, is a pleasant month, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 71.1°F (21.7°C).

Temperature

As May arrives, a rise in the average high-temperature is observed, moving from a moderate 60.4°F (15.8°C) in April to a pleasant 71.1°F (21.7°C). Gilson in May experiences a low-temperature average of 54.5°F (12.5°C).

Humidity

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

Rainfall

May is the month with the most rainfall. Rain falls for 16.3 days and accumulates 2.2" (56mm) of precipitation.

Snowfall

May through September are months without snowfall in Gilson.

Daylight

The average length of the day in May is 14h and 29min.
On the first day of May, sunrise is at 5:57 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:25 pm CDT.

Sunshine

The average sunshine in May in Gilson, Illinois, is 8.9h.

UV index

In Gilson, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, a regular UV index of 5 translates into these guidelines:
Be vigilant - Suggestions to stave off sun damage are provided. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

An average high-temperature, in May, in Gilson, is 71.1°F (21.7°C) and the average low-temperature is 54.5°F (12.5°C).

The average relative humidity in May in Gilson is 79%.

May is the month with the most rainfall. Rain falls for 16.3 days and accumulates 2.2" (56mm) of precipitation.

In Gilson, Illinois, during May, the rain falls for 16.3 days and regularly aggregates up to 2.2" (56mm) of precipitation.

In Gilson, Illinois, snow does not fall in May through September.

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

The average day length in May in Gilson is 14h and 29min.

On the first day of May, sunrise is at 5:57 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:31 am and sunset at 8:25 pm CDT.

The average sunshine duration in May is 8.9h.

In Gilson, Illinois, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Gilson, IL

  • Average high temperature in May: 71.1°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in May: 54.5°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in May
Gilson, IL

  • Average pressure in May: 29.95"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Gilson, IL

  • Average wind speed in May: 8.9mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in May
Gilson, IL

  • Average humidity in May: 79%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in May
Gilson, IL

  • Average rainfall in May: 2.2"

The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are January and December (0.59").

Average rainfall days in May
Gilson, IL

  • Average rainfall days in May: 16.3 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in May
Gilson, 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, August and September (0").

Average snowfall days in May
Gilson, IL

  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (10.3 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
Gilson, IL

  • Average daylight in May: 14h and 30min

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 18min).

  • Average sunshine in May: 8h and 54min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in May
Gilson, IL

  • Average sunshine days in May: 11.9 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in May
Gilson, IL

  • Average UV index in May: 5

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

Average cloud cover in May
Gilson, IL

  • Average cloud cover in May: 40

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in May
Gilson, IL

  • Average visibility in May: 6mi

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