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 start of May signals an increase in the average high-temperature, moving from a comfortable 65.1°F (18.4°C) in April to a warm 74.7°F (23.7°C). During the month of May, Pontoon Beach anticipates a mean low-temperature of 57.7°F (14.3°C).Humidity
With an average relative humidity of 78%, May is the most humid month.Rainfall
May is the month with the most rainfall. Rain falls for 17.8 days and accumulates 4.21" (107mm) of precipitation.Snowfall
In Pontoon Beach, snow does not fall in April through October.Daylight
In May, the average length of the day is 14h and 18min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of May, in Pontoon Beach, Illinois, sunrise is at 5:37 am and sunset at 8:18 pm CDT.
Sunshine
In May, the average sunshine is 9.5h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 6 during May leads to these advisories:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the usual temperature for Pontoon Beach in May?
What is the most humid month in Pontoon Beach?
What is the average humidity in May in Pontoon Beach?
What is the rainiest month in Pontoon Beach?
How many days does it rain in May in Pontoon Beach?
When it does not snow in Pontoon Beach?
How many hours of daylight does Pontoon Beach have in May?
When are sunrise and sunset in May in Pontoon Beach?
How many hours of sunshine does Pontoon Beach have in May?
What is the month with the highest UV index in Pontoon Beach?
What is the UV index intensity in May in Pontoon Beach?
Average temperature in May
Pontoon Beach, IL
- Average high temperature in May: 74.7°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in May: 57.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Pontoon Beach, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Pontoon Beach, IL
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in May
Pontoon Beach, IL
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Pontoon Beach, IL
- Average rainfall in May: 4.21"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in May
Pontoon Beach, IL
- Average rainfall days in May: 17.8 days
The months with the highest number of rainy days are May and July (17.8 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in May
Pontoon Beach, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Pontoon Beach, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.3 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
Pontoon Beach, IL
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Pontoon Beach, IL
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is December (18 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in May
Pontoon Beach, IL
- Average UV index in May: 6
The months with the highest UV index are May, 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
Pontoon Beach, IL
- Average cloud cover in May: 37
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in May
Pontoon Beach, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Pontoon Beach, Illinois, USA
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