May weather forecastManchester, IL
May
Weather in May
May, the last month of the spring in Manchester, is a pleasant month, with an average temperature ranging between max 73.2°F (22.9°C) and min 56.1°F (13.4°C).Temperature
The shift into May brings an increase in the average high-temperature, moving from a refreshing 63.7°F (17.6°C) in April to an agreeable 73.2°F (22.9°C). Manchester encounters a steady low-temperature average of 56.1°F (13.4°C) throughout the month of May.Humidity
In May, the average relative humidity in Manchester is 79%.Rainfall
In May, the rain falls for 15.8 days. Throughout May, 2.05" (52mm) of precipitation is accumulated. In Manchester, during the entire year, the rain falls for 127.3 days and collects up to 17.24" (438mm) of precipitation.Snowfall
May through October are months without snowfall in Manchester, Illinois.Daylight
The average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:55 pm. On the last day of May, sunrise is at 5:35 am and sunset at 8:22 pm CDT.
Sunshine
In Manchester, the average sunshine in May is 9.1h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In May, a daily UV index of 5 turns into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Manchester, IL
- Average high temperature in May: 73.2°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in May: 56.1°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.9°F).
Average pressure in May
Manchester, 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 (29.91"Hg).
Average wind speed in May
Manchester, IL
- Average wind speed in May: 7.9mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in May
Manchester, IL
- Average humidity in May: 79%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Manchester, IL
- Average rainfall in May: 2.05"
The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days in May
Manchester, IL
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in May
Manchester, IL
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Manchester, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.2 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
Manchester, 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 24min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in May
Manchester, IL
- Average sunshine days in May: 12.5 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in May
Manchester, 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
Manchester, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in May
Manchester, 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).





