May weather forecast
Adeline, IL

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Weather in May

The last month of the spring, May, is a pleasant month in Adeline, Illinois, with temperature in the range of an average high of 68.5°F (20.3°C) and an average low of 51.4°F (10.8°C).

Temperature

May's onset witnesses a shift in the average high-temperature, moving from a mild 56.5°F (13.6°C) in April to an agreeable 68.5°F (20.3°C). Adeline records an average nighttime low of 51.4°F (10.8°C) in May.

Humidity

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

Rainfall

In May, the rain falls for 18.3 days. Throughout May, 3.19" (81mm) of precipitation is accumulated. Throughout the year, in Adeline, there are 145.6 rainfall days, and 23.43" (595mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In May, the average length of the day is 14h and 36min.
On the first day of May, sunrise is at 5:52 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:27 pm CDT.

Sunshine

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 estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the maximum UV index of 5 suggests this advice:
Heed the precautions - Suggestions to avoid sunburn are made. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.

Frequently asked questions

What is the average May temperature?

May temperatures vary between a high-temperature of 68.5°F (20.3°C) and a low-temperature of 51.4°F (10.8°C).

What is the average humidity in May?

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

How many days does it rain in May in Adeline?

In Adeline, in May, it is raining for 18.3 days, with typically 3.19" (81mm) of accumulated precipitation.

When it does not snow in Adeline?

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.

What is the average length of the day in May?

In Adeline, the average day length in May is 14h and 36min.

When are sunrise and sunset in May?

On the first day of May in Adeline, sunrise is at 5:52 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:27 pm CDT.

How many hours of sunshine does Adeline have in May?

The average sunshine duration in May is 8.4h.

When is the highest UV index?

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

What is the UV index intensity in May?

In Adeline, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Adeline, IL

Average temperature in May - Adeline, IL
  • Average high temperature in May: 68.5°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.1°F).

  • Average low temperature in May: 51.4°F

The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in May
Adeline, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Adeline, IL

Average wind speed in May - Adeline, IL
  • Average wind speed in May: 8.8mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in May
Adeline, IL

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

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (75%).

Average rainfall in May
Adeline, IL

Average rainfall in May - Adeline, IL
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is June (3.39").
The driest months (with the least rainfall) are February and December (1.06").

Average rainfall days in May
Adeline, IL

Average rainfall days in May - Adeline, IL
  • Average rainfall days in May: 18.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5 days).

Average snowfall in May
Adeline, IL

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

The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Adeline, IL

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

The month with the highest number of snowfall days is January (12.4 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
Adeline, IL

Average daylight in May / Average sunshine in May - Adeline, 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 12min).

  • 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 36min).

Average sunshine days in May
Adeline, IL

Average sunshine days in May - Adeline, IL
  • Average sunshine days in May: 10.5 days

The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in May
Adeline, IL

Average UV index in May - Adeline, 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
Adeline, IL

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

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 33).

Average visibility in May
Adeline, IL

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

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

Adeline, Illinois, USA

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