May weather forecastFreeport, IL
May
Weather in May
May brings warmer weather, delighting inhabitants and visitors of Freeport. The hours of daylight reach their mid-year peak, and the clouds begin to retreat. The city buzzes with open-air affairs as people start indulging in outdoor activities. Marketplaces turn vibrant with fresh spring produce, and gardens bloom with an array of flowers, soaking in the plentiful sunshine. With mild evenings and warm afternoons, there are ample opportunities for picnics and walks in the park.Temperature
As Freeport welcomes May, the average high-temperature sees a rise, transitioning from a moderate 55.9°F (13.3°C) in April to a pleasant 68°F (20°C). Freeport's temperature tends to fall to an average low of 50.9°F (10.5°C) during the nights of May.Humidity
In May, the average relative humidity is 79%.Rainfall
In Freeport, in May, it is raining for 17.4 days, with typically 2.6" (66mm) of accumulated precipitation. In Freeport, during the entire year, the rain falls for 138 days and collects up to 19.69" (500mm) of precipitation.Snowfall
In Freeport, snow does not fall in May through September.Daylight
In Freeport, the average length of the day in May is 14h and 37min.On the first day of May, sunrise is at 5:52 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:24 am and sunset at 8:28 pm CDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in May interprets into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Freeport, IL
- Average high temperature in May: 68°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 (25.2°F).
- Average low temperature in May: 50.9°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in May
Freeport, 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
Freeport, IL
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in May
Freeport, IL
- Average humidity in May: 79%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Freeport, IL
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is June (2.87").
The driest month (with the least rainfall) is December (0.83").
Average rainfall days in May
Freeport, IL
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (4.9 days).
Average snowfall in May
Freeport, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Freeport, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.3 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
Freeport, IL
- Average daylight in May: 14h and 36min
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 6min).
- Average sunshine in May: 8h and 24min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in May
Freeport, IL
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in May
Freeport, 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
Freeport, IL
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in May
Freeport, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
