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
Rockton's May weather brings a rise in high-temperatures, moving from a cool 55°F (12.8°C) in April to an enjoyable 67.6°F (19.8°C). Nighttime temperature in Rockton dips to a mean of 49.8°F (9.9°C) during May.Humidity
The average relative humidity in May in Rockton is 79%.Rainfall
In Rockton, during May, the rain falls for 15.3 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Rockton, during the entire year, the rain falls for 122.2 days and collects up to 16.42" (417mm) of precipitation.Snowfall
In Rockton, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 38min.On the first day of May in Rockton, sunrise is at 5:50 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:21 am and sunset at 8:26 pm CDT.
Sunshine
The average sunshine in May in Rockton is 8.3h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Around midday, solar radiation is most harmful; hence, exposure should be limited. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Rockton?
What is the average humidity in May in Rockton?
How many days does it rain in May in Rockton?
When it does not snow in Rockton?
Does it snow in Rockton in May?
What is the average length of the day in May in Rockton?
What time are sunrise and sunset in May in Rockton?
How many hours of sunshine does Rockton have in May?
How high is the UV index in May in Rockton?
Average temperature in May
Rockton, IL
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 49.8°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in May
Rockton, 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 (29.91"Hg).
Average wind speed in May
Rockton, IL
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in May
Rockton, IL
- Average humidity in May: 79%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (76%).
Average rainfall in May
Rockton, IL
- Average rainfall in May: 2.13"
The wettest month (with the highest rainfall) is June (2.28").
The driest months (with the least rainfall) are February and December (0.67").
Average rainfall days in May
Rockton, IL
- Average rainfall days in May: 15.3 days
The months with the highest number of rainy days are May and June (15.3 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in May
Rockton, IL
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Rockton, IL
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (11.5 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
Rockton, IL
- Average daylight in May: 14h and 4min
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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in May
Rockton, IL
- Average sunshine days in May: 12.9 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in May
Rockton, IL
- Average UV index in May: 5
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Rockton, IL
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is September (Cloud cover 35).
Average visibility in May
Rockton, IL
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Rockton, Illinois, USA
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