May weather forecastGrannis, AR
May
Weather in May
The last month of the spring, May, is a warm month in Grannis, Arkansas, with an average temperature varying between 61°F (16.1°C) and 80.8°F (27.1°C).Temperature
May's arrival brings a slight change in high-temperatures, adjusting from a pleasant 72.7°F (22.6°C) in April to a moderately hot 80.8°F (27.1°C). Grannis's nights in May experience an average temperature drop to a refreshing 61°F (16.1°C).Heat index
May's average heat index is appraised at a hot 86°F (30°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
Humidity
The average relative humidity in May is 77%.Rainfall
May is the month with the most rainfall in Grannis. Rain falls for 13 days and accumulates 3.98" (101mm) of precipitation.Snowfall
In Grannis, snow does not fall in April through November.Daylight
In May, the average length of the day in Grannis is 13h and 58min.On the first day of the month, sunrise is at 6:26 am and sunset at 8:01 pm. On the last day of May, sunrise is at 6:06 am and sunset at 8:23 pm CDT.
Sunshine
The average sunshine in May in Grannis, Arkansas, is 8.8h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 6 in May transforms into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Grannis, AR
- Average high temperature in May: 80.8°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (51.3°F).
- Average low temperature in May: 61°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in May
Grannis, AR
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Grannis, AR
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in May
Grannis, AR
- Average humidity in May: 77%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (68%).
Average rainfall in May
Grannis, AR
- Average rainfall in May: 3.98"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is September (1.34").
Average rainfall days in May
Grannis, AR
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in May
Grannis, AR
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Grannis, AR
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.2 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
Grannis, AR
- Average daylight in May: 14h and 0min
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: 8h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in May
Grannis, AR
- Average sunshine days in May: 14.8 days
The month with the most sunshine days is January (20.5 days).
The months with the least sunshine days are May and August (14.8 days).
Average UV index in May
Grannis, AR
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in May
Grannis, AR
- Average cloud cover in May: 39
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in May
Grannis, AR
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
