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 May begins, there's a slight increase in the average high-temperature, moving from a comfortable 67.8°F (19.9°C) in April to a moderately hot 76.6°F (24.8°C). Round Rock documents a significant temperature variance in May, with the mean nighttime lows settling at a cool 54.5°F (12.5°C).Humidity
In May, the average relative humidity in Round Rock is 77%.Rainfall
In Round Rock, Tennessee, in May, during 17.8 rainfall days, 3.07" (78mm) of precipitation is typically accumulated. Throughout the year, there are 184.3 rainfall days, and 40.16" (1020mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Round Rock.Daylight
The average length of the day in May in Round Rock is 14h and 7min.On the first day of the month, sunrise is at 6:43 am and sunset at 8:25 pm. On the last day of May, in Round Rock, sunrise is at 6:20 am and sunset at 8:48 pm EDT.
Sunshine
In Round Rock, the average sunshine in May is 9.8h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 6 in May leads to these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Round Rock in May?
What is the average humidity in May in Round Rock?
How many days does it rain in May in Round Rock?
When it does not snow in Round Rock?
Does it snow in Round Rock in May?
What is the average length of the day in May in Round Rock?
What time are sunrise and sunset in May in Round Rock?
How many hours of sunshine does Round Rock have in May?
What is the month with the highest UV index in Round Rock?
How high is the UV index in May in Round Rock?
Average temperature in May
Round Rock, TN
- Average high temperature in May: 76.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (43.2°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (28.9°F).
Average pressure in May
Round Rock, TN
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Round Rock, TN
- Average wind speed in May: 4.8mph
The windiest month (with the highest average wind speed) is April (6mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in May
Round Rock, TN
- Average humidity in May: 77%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, July and August (75%).
Average rainfall in May
Round Rock, TN
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is February (4.8").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in May
Round Rock, TN
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in May
Round Rock, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Round Rock, TN
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.1 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
Round Rock, TN
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in May
Round Rock, TN
- Average sunshine days in May: 10 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in May
Round Rock, TN
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Round Rock, TN
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in May
Round Rock, TN
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, May and December (5mi).
Round Rock, Tennessee, USA
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