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 Waterman enters May, the average high-temperature increases from the a refreshing 57°F (13.9°C) of April to a pleasant 68.9°F (20.5°C). During May, Waterman sees a mean low-temperature of 52.2°F (11.2°C).Humidity
In Waterman, the average relative humidity in May is 78%.Rainfall
May is the month with the most rainfall in Waterman. Rain falls for 18.1 days and accumulates 4.41" (112mm) of precipitation.Snowfall
In Waterman, snow does not fall in May through September.Daylight
The average length of the day in May in Waterman is 14h and 34min.On the first day of the month, sunrise is at 5:50 am and sunset at 7:53 pm. On the last day of May, in Waterman, sunrise is at 5:22 am and sunset at 8:23 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
In Waterman, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 in May translates into these instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Waterman?
What is the average humidity in May in Waterman?
What is the wettest month in Waterman?
How many days does it rain in May in Waterman?
When it does not snow in Waterman?
Does it snow in Waterman in May?
How many hours of daylight does Waterman have in May?
When is the sunrise / sunset in May in Waterman?
How many hours of sunshine does Waterman have in May?
What is the UV index reading in May in Waterman?
Average temperature in May
Waterman, IL
- Average high temperature in May: 68.9°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 (27.5°F).
- Average low temperature in May: 52.2°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in May
Waterman, 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
Waterman, IL
- Average wind speed in May: 8.4mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Waterman, IL
- Average humidity in May: 78%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Waterman, IL
- Average rainfall in May: 4.41"
The wettest month (with the highest rainfall) is May (4.41").
The driest months (with the least rainfall) are November and December (1.69").
Average rainfall days in May
Waterman, IL
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is July (19.2 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall in May
Waterman, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Waterman, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Waterman, 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 4min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Waterman, IL
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is July (8.5 days).
Average UV index in May
Waterman, IL
- Average UV index in May: 5
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Waterman, IL
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in May
Waterman, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Waterman, Illinois, USA
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