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
As Rockport enters May, the average high-temperature increases from the an enjoyable 64°F (17.8°C) of April to an agreeable 73°F (22.8°C). During May, Rockport's temperature falls to a steady low-temperature average of 55.9°F (13.3°C).Humidity
May is the most humid month, with an average relative humidity of 81%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.3 days and typically aggregates up to 3.5" (89mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Rockport, the average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:03 am and sunset at 7:58 pm. On the last day of May, in Rockport, Illinois, sunrise is at 5:38 am and sunset at 8:25 pm CDT.
Sunshine
In Rockport, the average sunshine in May is 9.1h.UV index
In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the most humid month?
What is the average humidity in May?
What is the rainiest month?
How much 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 Rockport have in May?
How high is the UV index in May?
Average temperature in May
Rockport, IL
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in May: 55.9°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 (22.1°F).
Average pressure in May
Rockport, 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
Rockport, IL
- Average wind speed in May: 7.8mph
The windiest months (with the highest average wind speed) are January and February (9.7mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in May
Rockport, IL
- Average humidity in May: 81%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Rockport, IL
- Average rainfall in May: 3.5"
The wettest month (with the highest rainfall) is May (3.5").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in May
Rockport, IL
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in May
Rockport, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Rockport, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.5 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
Rockport, IL
- Average daylight in May: 14h and 2min
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 1min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days in May
Rockport, IL
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in May
Rockport, 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
Rockport, IL
- Average cloud cover in May: 38
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 30).
Average visibility in May
Rockport, 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).
Rockport, Illinois, USA
Weather forecast for your location
2. Allow the app to use your location