May weather forecastMachesney Park, IL
May
Weather in May
The last month of the spring, May, is an agreeable month in Machesney Park, Illinois, with an average temperature ranging between max 68°F (20°C) and min 50.5°F (10.3°C).Temperature
As May arrives, a rise in the average high-temperature is observed, moving from a moderate 55.6°F (13.1°C) in April to a pleasant 68°F (20°C). Machesney Park reports an average low-temperature of 50.5°F (10.3°C) during the nights of May.Humidity
In May, the average relative humidity is 78%.Rainfall
In Machesney Park, in May, it is raining for 16.5 days, with typically 2.09" (53mm) of accumulated precipitation. In Machesney Park, during the entire year, the rain falls for 123.8 days and collects up to 14.49" (368mm) of precipitation.Snowfall
In Machesney Park, snow does not fall in May through September.Daylight
In May, the average length of the day in Machesney Park is 14h and 37min.On the first day of the month, sunrise is at 5:50 am and sunset at 7:56 pm. On the last day of May, sunrise is at 5:21 am and sunset at 8:26 pm CDT.
Sunshine
In Machesney Park, the average sunshine in May is 8.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during May leads to these instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Machesney Park, IL
- Average high temperature in May: 68°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in May
Machesney Park, IL
- Average pressure in May: 29.96"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Machesney Park, IL
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Machesney Park, IL
- Average humidity in May: 78%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Machesney Park, IL
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is June (2.2").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in May
Machesney Park, IL
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in May
Machesney Park, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Machesney Park, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.3 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
Machesney Park, IL
- Average daylight in May: 14h and 36min
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 30min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The months with the least sunshine are January and February (Average sunshine: 3h and 36min).
Average sunshine days in May
Machesney Park, IL
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in May
Machesney Park, IL
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Machesney Park, IL
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in May
Machesney Park, IL
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
