Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The shift from April to May is marked by an increase in the average high-temperature, moving from a moderate 57.6°F (14.2°C) to an agreeable 69.8°F (21°C). May sees the temperature falling to a mean low of 52.7°F (11.5°C).Humidity
The average relative humidity in May is 76%.Rainfall
The month with the most rainfall is May, when the rain falls for 11.6 days and typically aggregates up to 1.38" (35mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in May is 14h and 33min.On the first day of May, sunrise is at 5:47 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:19 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In Lockport, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 5 in May transforms into this advice:
Put precautions into practice - Guidance to elude sunburn is provided. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. 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
What is the average May temperature?
What is the average humidity in May in Lockport?
What is the rainiest month?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Lockport have in May?
What is the UV index intensity in May?
Average temperature in May
Lockport, IL
- Average high temperature in May: 69.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in May
Lockport, IL
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Lockport, IL
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in May
Lockport, IL
- Average humidity in May: 76%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Lockport, IL
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is May (1.38").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in May
Lockport, IL
- Average rainfall days in May: 11.6 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in May
Lockport, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Lockport, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (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
Lockport, IL
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Lockport, IL
- Average sunshine days in May: 16.1 days
The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in May
Lockport, 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 and December (UV index 1).
Average cloud cover in May
Lockport, IL
- Average cloud cover in May: 43
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Lockport, IL
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Lockport, Illinois, USA
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