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 brings a rise in the average high-temperature, transitioning from April's refreshing 56.8°F (13.8°C) to a pleasant 68.9°F (20.5°C). Polo records an average temperature drop to a fresh 52°F (11.1°C) in May.Humidity
In May, the average relative humidity is 78%.Rainfall
The month with the most rainfall is May, when the rain falls for 19.6 days and typically aggregates up to 4.57" (116mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in May is 14h and 35min.On the first day of the month, sunrise is at 5:53 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:25 am and sunset at 8:26 pm CDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 during May translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
What is the rainiest month?
How much does it rain in May?
When it does not snow?
Does it snow in May?
How many hours of daylight does Polo have in May?
When are sunrise and sunset in May in Polo?
How many hours of sunshine does Polo have in May?
When is the highest UV index?
What is the UV index reading in May?
Average temperature in May
Polo, IL
- Average high temperature in May: 68.9°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 (26.6°F).
- Average low temperature in May: 52°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 (14.2°F).
Average pressure in May
Polo, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Polo, IL
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Polo, 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 (74%).
Average rainfall in May
Polo, IL
- Average rainfall in May: 4.57"
The wettest month (with the highest rainfall) is May (4.57").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in May
Polo, IL
- Average rainfall days in May: 19.6 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (4.9 days).
Average snowfall in May
Polo, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Polo, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Polo, 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 1min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Polo, IL
- Average sunshine days in May: 9.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (8.5 days).
Average UV index in May
Polo, IL
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Polo, IL
- Average cloud cover in May: 45
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
Polo, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Polo, Illinois, USA
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