Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May brings a change in Alden's weather, with average high-temperatures moving from April's fresh 54.9°F (12.7°C) to an enjoyable 66.9°F (19.4°C). Alden experiences an average low-temperature reading of 49.5°F (9.7°C) throughout May.Humidity
The average relative humidity in May is 79%.Rainfall
In May, in Alden, the rain falls for 18.8 days. Throughout May, 3.03" (77mm) of precipitation is accumulated. Throughout the year, in Alden, there are 152.8 rainfall days, and 26.46" (672mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Alden aggregates 0.08" (2mm) of snow. In Alden, Illinois, during the entire year, snow falls for 54.4 days and aggregates up to 16.93" (430mm) of snow.Daylight
In Alden, the average length of the day in May is 14h and 38min.On the first day of May, sunrise is at 5:47 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:19 am and sunset at 8:24 pm CDT.
Sunshine
In May, the average sunshine in Alden is 8.4h.UV index
The months with the highest UV index in Alden, Illinois, 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 average individuals.Note: In May, the maximum UV index of 5 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Alden in May?
What is the average humidity in May in Alden?
How much does it rain in Alden in May?
What is the last month it snows in Alden?
What is the average length of the day in May in Alden?
When is the sunrise / sunset in May in Alden?
How many hours of sunshine does Alden have in May?
What is the month with the highest UV index in Alden?
What is the UV index reading in May in Alden?
Average temperature in May
Alden, 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 (25.3°F).
- Average low temperature in May: 49.5°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in May
Alden, 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
Alden, IL
- Average wind speed in May: 8.4mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Alden, 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 (77%).
Average rainfall in May
Alden, IL
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in May
Alden, IL
- Average rainfall days in May: 18.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in May
Alden, IL
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Alden, IL
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Alden, 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 36min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Alden, IL
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in May
Alden, 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
Alden, 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 35).
Average visibility in May
Alden, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Alden, Illinois, USA
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