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
A subtle rise in the average high-temperature is observed during May, adjusting from a warm 73.4°F (23°C) in April to a still moderately hot 82°F (27.8°C). During the nights in May, an average low-temperature of 61.9°F (16.6°C) is observed in Rison.Heat index
The average heat index in May is calculated to be a tropical 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Heat index evaluations are typically in the context of light winds and shaded environments. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In Rison, the average relative humidity in May is 76%.Rainfall
In May, the rain falls for 14.2 days. Throughout May, 2.4" (61mm) of precipitation is accumulated. In Rison, Arkansas, during the entire year, the rain falls for 145.6 days and collects up to 29.57" (751mm) of precipitation.Snowfall
In Rison, snow does not fall in April through November.Daylight
In May, the average length of the day in Rison is 13h and 56min.On the first day of the month, sunrise is at 6:18 am and sunset at 7:52 pm. On the last day of May, sunrise is at 5:58 am and sunset at 8:14 pm CDT.
Sunshine
The average sunshine in May in Rison, Arkansas, is 9.1h.UV index
The average daily maximum UV index in May in Rison is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 6 during May translates into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures in Rison?
What is the average humidity in May in Rison?
How many days does it rain in May in Rison?
When it does not snow in Rison?
How many hours of daylight does Rison have in May?
What time are sunrise and sunset in May in Rison?
How long on average sun shines in May in Rison?
What is the UV index reading in May in Rison?
Average temperature in May
Rison, AR
- Average high temperature in May: 82°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (50.9°F).
- Average low temperature in May: 61.9°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in May
Rison, 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
Rison, AR
- Average wind speed in May: 6.3mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Rison, AR
- Average humidity in May: 76%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Rison, AR
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is April (3.23").
The driest month (with the least rainfall) is November (1.42").
Average rainfall days in May
Rison, AR
- Average rainfall days in May: 14.2 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in May
Rison, AR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Rison, AR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.7 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
Rison, AR
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 9h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Rison, AR
- Average sunshine days in May: 15.5 days
The month with the most sunshine days is October (20.3 days).
The months with the least sunshine days are July and August (12.4 days).
Average UV index in May
Rison, 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, February, November and December (UV index 3).
Average cloud cover in May
Rison, AR
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in May
Rison, AR
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Rison, Arkansas, USA
Weather forecast for your location
2. Allow the app to use your location