May weather forecastTremont, IL
May
Weather in May
May, the last month of the spring in Tremont, is a pleasant month, with an average temperature varying between 55.2°F (12.9°C) and 71.8°F (22.1°C).Temperature
Tremont's weather in May presents a rise in the average high-temperature, moving from a mild 60.6°F (15.9°C) in April to an agreeable 71.8°F (22.1°C). An average nighttime temperature of 55.2°F (12.9°C) is recorded in Tremont during May.Humidity
The average relative humidity in May is 77%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.2 days and typically aggregates up to 2.48" (63mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Tremont, the average length of the day in May is 14h and 27min.On the first day of May in Tremont, sunrise is at 5:55 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:29 am and sunset at 8:22 pm CDT.
Sunshine
The average sunshine in May is 9h.UV index
The average daily maximum UV index in May in Tremont is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Tremont, IL
- Average high temperature in May: 71.8°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in May: 55.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Tremont, IL
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Tremont, IL
- Average wind speed in May: 8.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Tremont, IL
- Average humidity in May: 77%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Tremont, IL
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are February and December (0.83").
Average rainfall days in May
Tremont, IL
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in May
Tremont, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Tremont, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.7 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
Tremont, IL
- Average daylight in May: 14h and 30min
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 June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Tremont, IL
- Average sunshine days in May: 11.4 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (11.4 days).
Average UV index in May
Tremont, IL
- 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, February, November and December (UV index 2).
Average cloud cover in May
Tremont, IL
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in May
Tremont, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





