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
May's arrival is marked by an increase in the average high-temperature, moving from a mild 60.6°F (15.9°C) in April to an agreeable 72°F (22.2°C). An average low-temperature of 55.4°F (13°C) is anticipated throughout the nights in Mackinaw, Illinois, during May.Humidity
The average relative humidity in May is 77%.Rainfall
May is the month with the most rainfall in Mackinaw. Rain falls for 13.4 days and accumulates 1.14" (29mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In May, the average length of the day is 14h and 27min.On the first day of May, sunrise is at 5:55 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:21 pm CDT.
Sunshine
In May, the average sunshine is 9h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 5 in May suggests the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Mackinaw?
What is the average humidity in May in Mackinaw?
What is the wettest month in Mackinaw?
How much does it rain in Mackinaw in May?
When it does not snow in Mackinaw?
Does it snow in Mackinaw in May?
How many hours of daylight does Mackinaw have in May?
When are sunrise and sunset in May in Mackinaw?
How long on average sun shines in May in Mackinaw?
What is the UV index intensity in May in Mackinaw?
Average temperature in May
Mackinaw, IL
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in May: 55.4°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 (19°F).
Average pressure in May
Mackinaw, 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
Mackinaw, IL
- Average wind speed in May: 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 (6.5mph).
Average humidity in May
Mackinaw, IL
- Average humidity in May: 77%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Mackinaw, IL
- Average rainfall in May: 1.14"
The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is December (0.43").
Average rainfall days in May
Mackinaw, IL
- Average rainfall days in May: 13.4 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in May
Mackinaw, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.02").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Mackinaw, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.8 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
Mackinaw, 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: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Mackinaw, IL
- Average sunshine days in May: 14.7 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in May
Mackinaw, 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
Mackinaw, IL
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in May
Mackinaw, 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).
Mackinaw, Illinois, USA
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