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
As Sleepy Hollow transitions into May, the average high-temperature shows a change, moving from a moderate 55.4°F (13°C) in April to a still refreshing 67.6°F (19.8°C). Sleepy Hollow's average low-temperature in the month of May is recorded at a fresh 50.5°F (10.3°C).Humidity
In Sleepy Hollow, the average relative humidity in May is 78%.Rainfall
In Sleepy Hollow, Illinois, in May, during 17.4 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, there are 149.2 rainfall days, and 24.02" (610mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Sleepy Hollow aggregates 0.04" (1mm) of snow. In Sleepy Hollow, during the entire year, snow falls for 47.4 days and aggregates up to 13.07" (332mm) of snow.Daylight
The average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 5:47 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:19 am and sunset at 8:22 pm CDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
In Sleepy Hollow, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In May, a regular UV index of 5 translates into these guidelines:
Take precautions - Protection against sunburn is recommended. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Sleepy Hollow?
What is the average humidity in May in Sleepy Hollow?
How many days does it rain in May in Sleepy Hollow?
What is the last month it snows in Sleepy Hollow?
How many hours of daylight does Sleepy Hollow have in May?
When is the sunrise / sunset in May in Sleepy Hollow?
How many hours of sunshine does Sleepy Hollow have in May?
What is the UV index intensity in May in Sleepy Hollow?
Average temperature in May
Sleepy Hollow, IL
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in May
Sleepy Hollow, 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
Sleepy Hollow, IL
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
Sleepy Hollow, IL
- Average humidity in May: 78%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Sleepy Hollow, IL
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days in May
Sleepy Hollow, IL
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in May
Sleepy Hollow, IL
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Sleepy Hollow, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Sleepy Hollow, 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 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Sleepy Hollow, IL
- Average sunshine days in May: 10.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
Sleepy Hollow, IL
- Average UV index in May: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Sleepy Hollow, IL
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility in May
Sleepy Hollow, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
Sleepy Hollow, Illinois, USA
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