May weather forecastHettick, IL
May
Weather in May
The last month of the spring, May, is a warm month in Hettick, Illinois, with an average temperature ranging between min 56.8°F (13.8°C) and max 73.6°F (23.1°C).Temperature
May brings a rise in the average high-temperature, transitioning from April's refreshing 63.9°F (17.7°C) to a warm 73.6°F (23.1°C). An average low-temperature of 56.8°F (13.8°C) is observed during May nights in Hettick.Humidity
The average relative humidity in May is 79%.Rainfall
In Hettick, in May, it is raining for 17.3 days, with typically 2.76" (70mm) of accumulated precipitation. In Hettick, during the entire year, the rain falls for 138.2 days and collects up to 23.31" (592mm) of precipitation.Snowfall
In Hettick, Illinois, snow does not fall in April through October.Daylight
In Hettick, the average length of the day in May is 14h and 21min.On the first day of May, sunrise is at 6:00 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:20 pm CDT.
Sunshine
In May, the average sunshine in Hettick, Illinois, is 9.3h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Take precautions - Protection against sunburn is recommended. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hettick, IL
- Average high temperature in May: 73.6°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in May: 56.8°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in May
Hettick, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Hettick, IL
- Average wind speed in May: 8mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in May
Hettick, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Hettick, IL
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is June (3.07").
The driest months (with the least rainfall) are January and February (1.22").
Average rainfall days in May
Hettick, IL
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in May
Hettick, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Hettick, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (6.3 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
Hettick, IL
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Hettick, IL
- Average sunshine days in May: 11.1 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in May
Hettick, 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, February, November and December (UV index 2).
Average cloud cover in May
Hettick, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility in May
Hettick, 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).





