May weather forecast
Sibley, IL

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Weather in May

The last month of the spring, May, is a pleasant month in Sibley, Illinois, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 55.4°F (13°C).

Temperature

Sibley's transition into May is marked by a temperature shift, moving from a comfortable 60.8°F (16°C) in April to a pleasant 71.6°F (22°C). Sibley's average low-temperature for the month of May records at a moderate 55.4°F (13°C).

Humidity

In May, the average relative humidity is 76%.

Rainfall

The month with the most rainfall is May, when the rain falls for 14.9 days and typically aggregates up to 1.93" (49mm) of precipitation.

Snowfall

In Sibley, snow does not fall in May through September.

Daylight

The average length of the day in May is 14h and 28min.
On the first day of the month, sunrise is at 5:51 am and sunset at 7:49 pm. On the last day of May, sunrise is at 5:24 am and sunset at 8:17 pm CDT.

Sunshine

In Sibley, the average sunshine in May is 8.8h.

UV index

In Sibley, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index, 5 during May, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Jun 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

In May, in Sibley, the average high-temperature is 71.6°F (22°C), and the average low-temperature is 55.4°F (13°C).

What is the average humidity in May?

The average relative humidity in May is 76%.

What is the rainiest month in Sibley?

The month with the most rainfall is May, when the rain falls for 14.9 days and typically aggregates up to 1.93" (49mm) of precipitation.

How many days does it rain in May in Sibley?

In Sibley, in May, during 14.9 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in May?

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

How many hours of daylight does Sibley have in May?

In Sibley, the average day length in May is 14h and 28min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:51 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:17 pm CDT.

How many hours of sunshine does Sibley have in May?

In Sibley, the average sunshine duration in May is 8.8h.

What is the UV index intensity in May in Sibley?

In Sibley, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health risk 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
Sibley, IL

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

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in May: 55.4°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).

Average pressure in May
Sibley, IL

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

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in May
Sibley, IL

Average wind speed in May - Sibley, IL
  • Average wind speed in May: 9.2mph

The windiest month (with the highest average wind speed) is January (11mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in May
Sibley, IL

Average humidity in May - Sibley, IL
  • Average humidity in May: 76%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Sibley, IL

Average rainfall in May - Sibley, IL
  • Average rainfall in May: 1.93"

The wettest month (with the highest rainfall) is May (1.93").
The driest months (with the least rainfall) are February and December (0.75").

Average rainfall days in May
Sibley, IL

Average rainfall days in May - Sibley, IL
  • Average rainfall days in May: 14.9 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in May
Sibley, IL

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

The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Sibley, IL

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

The month with the highest number of snowfall days is January (9.3 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
Sibley, IL

Average daylight in May / Average sunshine in May - Sibley, 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 5min

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
Sibley, IL

Average sunshine days in May - Sibley, IL
  • Average sunshine days in May: 12.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in May
Sibley, IL

Average UV index in May - Sibley, 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
Sibley, IL

Average cloud cover in May - Sibley, IL
  • Average cloud cover in May: 42

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in May
Sibley, IL

Average visibility in May - Sibley, 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).

Sibley, Illinois, USA

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