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
McCullom Lake in May experiences an increase in the average high-temperature, moving from April's cool 54.3°F (12.4°C) to an enjoyable 66.4°F (19.1°C). In McCullom Lake, an average nighttime temperature of 49.3°F (9.6°C) is expected during May.Humidity
In May, the average relative humidity is 79%.Rainfall
In McCullom Lake, in May, during 17.8 rainfall days, 3.39" (86mm) of precipitation is typically accumulated. In McCullom Lake, during the entire year, the rain falls for 152.4 days and collects up to 28.07" (713mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in McCullom Lake, Illinois. May is the last month it regularly snows. During 0.1 snowfall days, in May, McCullom Lake aggregates 0.08" (2mm) of snow. In McCullom Lake, during the entire year, snow falls for 49 days and aggregates up to 16.5" (419mm) of snow.Daylight
The average length of the day in May in McCullom Lake is 14h and 37min.On the first day of May, sunrise is at 5:47 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:23 pm CDT.
Sunshine
In McCullom Lake, the average sunshine in May is 8.5h.UV index
The average daily maximum UV index in May in McCullom Lake is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 5 in May suggests the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in McCullom Lake?
What is the average humidity in May in McCullom Lake?
How many days does it rain in May in McCullom Lake?
What is the last month it snows in McCullom Lake?
How many hours of daylight does McCullom Lake have in May?
What time are sunrise and sunset in May in McCullom Lake?
How many hours of sunshine does McCullom Lake have in May?
How high is the UV index in May in McCullom Lake?
Average temperature in May
McCullom Lake, IL
- Average high temperature in May: 66.4°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 (26.6°F).
- Average low temperature in May: 49.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure in May
McCullom Lake, 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
McCullom Lake, IL
- Average wind speed in May: 8.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in May
McCullom Lake, IL
- Average humidity in May: 79%
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in May
McCullom Lake, IL
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days in May
McCullom Lake, IL
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in May
McCullom Lake, IL
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
McCullom Lake, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
McCullom Lake, 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 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
McCullom Lake, IL
- Average sunshine days in May: 11 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in May
McCullom Lake, IL
- Average UV index in May: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
McCullom Lake, IL
- Average cloud cover in May: 43
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 31).
Average visibility in May
McCullom Lake, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
McCullom Lake, Illinois, USA
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