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
In Downers Grove, the onset of May comes with an increased average high-temperature, moving from April's moderate 56.1°F (13.4°C) to an agreeable 68.4°F (20.2°C). During May nights, Downers Grove records an average temperature of 51.1°F (10.6°C).Humidity
The average relative humidity in May in Downers Grove is 80%.Rainfall
The month with the most rainfall is May, when the rain falls for 18.6 days and typically aggregates up to 4.25" (108mm) of precipitation.Snowfall
May through September are months without snowfall in Downers Grove.Daylight
The average length of the day in May is 14h and 37min.On the first day of the month, sunrise is at 5:59 am and sunset at 8:04 pm. On the last day of May, in Downers Grove, sunrise is at 5:31 am and sunset at 8:34 pm CDT.
Sunshine
In May, the average sunshine in Downers Grove is 8.4h.UV index
The average daily maximum UV index in May in Downers Grove is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Downers Grove in May?
What is the average humidity in May in Downers Grove?
What is the rainiest month in Downers Grove?
How many days does it rain in May in Downers Grove?
When it does not snow in Downers Grove?
Does it snow in Downers Grove in May?
How many hours of daylight does Downers Grove have in May?
When are sunrise and sunset in May in Downers Grove?
How many hours of sunshine does Downers Grove have in May?
What is the UV index intensity in May in Downers Grove?
Average temperature in May
Downers Grove, IA
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 51.1°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 (13.3°F).
Average pressure in May
Downers Grove, IA
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Downers Grove, IA
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in May
Downers Grove, IA
- Average humidity in May: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Downers Grove, IA
- Average rainfall in May: 4.25"
The wettest month (with the highest rainfall) is May (4.25").
The driest months (with the least rainfall) are January and February (1.26").
Average rainfall days in May
Downers Grove, IA
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in May
Downers Grove, IA
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Downers Grove, IA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (12.1 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
Downers Grove, IA
- 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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in May
Downers Grove, IA
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in May
Downers Grove, IA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Downers Grove, IA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in May
Downers Grove, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Downers Grove, Iowa, USA
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