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 an increase in the average high-temperature, progressing from a cool 53.1°F (11.7°C) in April to an enjoyable 64°F (17.8°C). An average nighttime temperature of 50.5°F (10.3°C) is observed during May.Humidity
In May, the average relative humidity in Harwood Heights is 77%.Rainfall
The month with the most rainfall in Harwood Heights is May, when the rain falls for 12.3 days and typically aggregates up to 1.06" (27mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Harwood Heights, Illinois. During 0.1 snowfall days, in May, Harwood Heights aggregates 0.04" (1mm) of snow. Throughout the year, in Harwood Heights, there are 28.5 snowfall days, and 3.07" (78mm) of snow is accumulated.Daylight
The average length of the day in May in Harwood Heights is 14h and 35min.On the first day of May, sunrise is at 5:46 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:19 pm CDT.
Sunshine
In May, the average sunshine in Harwood Heights is 8.5h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the temperature in May in Harwood Heights?
What is the average humidity in May in Harwood Heights?
What is the rainiest month in Harwood Heights?
How many days does it rain in May in Harwood Heights?
What is the last month it snows in Harwood Heights?
What is the average length of the day in May in Harwood Heights?
What time are sunrise and sunset in May in Harwood Heights?
How many hours of sunshine does Harwood Heights have in May?
What is the UV index reading in May in Harwood Heights?
Average temperature in May
Harwood Heights, IL
- Average high temperature in May: 64°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 (28.8°F).
- Average low temperature in May: 50.5°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Harwood Heights, 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
Harwood Heights, IL
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Harwood Heights, IL
- Average humidity in May: 77%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Harwood Heights, IL
- Average rainfall in May: 1.06"
The wettest month (with the highest rainfall) is May (1.06").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days in May
Harwood Heights, IL
- Average rainfall days in May: 12.3 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in May
Harwood Heights, IL
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Harwood Heights, IL
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Harwood Heights, 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 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Harwood Heights, IL
- Average sunshine days in May: 16 days
The month with the most sunshine days is December (23.3 days).
The month with the least sunshine days is June (14.7 days).
Average UV index in May
Harwood Heights, IL
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Harwood Heights, IL
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
Harwood Heights, 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).
Harwood Heights, Illinois, USA
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