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 April transitions into May, a change in temperatures is observed, with average highs moving from a moderate 56.8°F (13.8°C) to a pleasant 68.9°F (20.5°C). Hillcrest cools down to an average low-temperature of 52°F (11.1°C) throughout the month of May.Humidity
In Hillcrest, the average relative humidity in May is 77%.Rainfall
In Hillcrest, in May, during 15.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. In Hillcrest, during the entire year, the rain falls for 124.5 days and collects up to 14.49" (368mm) 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 May, sunrise is at 5:51 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 8:24 pm CDT.
Sunshine
In May, the average sunshine in Hillcrest is 8.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 in May translates into these instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Hillcrest?
What is the average humidity in May in Hillcrest?
How much does it rain in Hillcrest in May?
When it does not snow in Hillcrest?
Does it snow in Hillcrest in May?
What is the average length of the day in May in Hillcrest?
What time are sunrise and sunset in May in Hillcrest?
How long on average sun shines in May in Hillcrest?
What is the month with the highest UV index in Hillcrest?
What is the UV index intensity in May in Hillcrest?
Average temperature in May
Hillcrest, 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 (27°F).
- Average low temperature in May: 52°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in May
Hillcrest, IL
- Average pressure in May: 29.96"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
Hillcrest, IL
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity in May
Hillcrest, IL
- Average humidity in May: 77%
The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (74%).
Average rainfall in May
Hillcrest, IL
- Average rainfall in May: 2.09"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in May
Hillcrest, IL
- Average rainfall days in May: 15.5 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in May
Hillcrest, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Hillcrest, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.3 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
Hillcrest, 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 2min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Hillcrest, IL
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Hillcrest, 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
Hillcrest, IL
- Average cloud cover in May: 44
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
Hillcrest, IL
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Hillcrest, Illinois, USA
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