May weather forecastHamilton, IL
May
Weather in May
May, the last month of the spring in Hamilton, is a pleasant month, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 54.9°F (12.7°C).Temperature
The arrival of May brings an increase in high-temperatures, moving from a refreshing 61.9°F (16.6°C) in April to an agreeable 71.6°F (22°C). Throughout May, the temperature in Hamilton, Illinois, falls to an average low of 54.9°F (12.7°C).Humidity
The average relative humidity in May in Hamilton is 79%.Rainfall
The month with the most rainfall in Hamilton is May, when the rain falls for 16.8 days and typically aggregates up to 2.91" (74mm) of precipitation.Snowfall
May through September are months without snowfall in Hamilton.Daylight
The average length of the day in May is 14h and 26min.On the first day of May in Hamilton, sunrise is at 6:03 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:28 pm CDT.
Sunshine
In May, the average sunshine in Hamilton is 9h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 5 in May translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hamilton, IL
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in May: 54.9°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure in May
Hamilton, IL
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in May
Hamilton, IL
- Average wind speed in May: 8.6mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in May
Hamilton, 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 (70%).
Average rainfall in May
Hamilton, IL
- Average rainfall in May: 2.91"
The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
Hamilton, IL
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in May
Hamilton, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Hamilton, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.9 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
Hamilton, IL
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Hamilton, IL
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.5 days).
Average UV index in May
Hamilton, 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
Hamilton, IL
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in May
Hamilton, 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).





