May weather forecastKnoxville, AR
May
Weather in May
The last month of the spring, May, is a warm month in Knoxville, Arkansas, with temperature in the range of an average low of 57.7°F (14.3°C) and an average high of 77.9°F (25.5°C).Temperature
As Knoxville welcomes May, the average high-temperature displays a subtle shift, adjusting from a pleasant 69.1°F (20.6°C) in April to a warm 77.9°F (25.5°C). An average temperature of 57.7°F (14.3°C) marks the nights in May.Humidity
March and May, with an average relative humidity of 79%, are the most humid months.Rainfall
The wettest months are April and May, with an average 4.41" (112mm) of rainfall.Snowfall
In Knoxville, snow does not fall in April through October.Daylight
In May, the average length of the day is 14h and 2min.On the first day of May, sunrise is at 6:20 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:22 pm CDT.
Sunshine
In Knoxville, Arkansas, the average sunshine in May is 8.6h.UV index
In Knoxville, Arkansas, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 6 suggests these recommendations:
Deflect overexposure. Sun protection is a necessity. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Knoxville, AR
- Average high temperature in May: 77.9°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in May: 57.7°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in May
Knoxville, AR
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Knoxville, AR
- Average wind speed in May: 5.3mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in May
Knoxville, AR
- Average humidity in May: 79%
The months with the highest relative humidity are March and May (79%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in May
Knoxville, AR
- Average rainfall in May: 4.41"
The wettest months (with the highest rainfall) are April and May (4.41").
The driest months (with the least rainfall) are July and September (2.36").
Average rainfall days in May
Knoxville, AR
- Average rainfall days in May: 15.5 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is November (9 days).
Average snowfall in May
Knoxville, AR
- Average snowfall in May: 0"
The months with the highest snowfall are January and February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Knoxville, AR
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Knoxville, AR
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in May
Knoxville, AR
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in May
Knoxville, AR
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Knoxville, AR
- Average cloud cover in May: 41
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in May
Knoxville, AR
- Average visibility in May: 5mi
The months with the highest visibility are June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, May, November and December (5mi).
