May weather forecastMetairie, LA
May
Weather in May
May, in Metairie, can be characterized as hot and damp with increased humidity. As temperatures rise, the city gets comfortably acclimated to the summer solstice, inviting warmer days and evenings. Rainfall marks a distinct peak during May, a trend that continues through midsummer. Daylight hours reach their zenith in this month, opening up opportunities for a host of outdoor activities. An enhanced UV index of 7 is observed during May, corresponding with longer sunshine hours.Temperature
Metairie in May denotes a subtle temperature transition, adjusting from an average high of 76.6°F (24.8°C) in April to a still warm 82.9°F (28.3°C). During the month of May, Metairie anticipates a mean low-temperature of 70.9°F (21.6°C).Heat index
In May, the heat index is calculated to be a hot 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Always consider that heat index estimations are for light winds and places in the shade. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In May, the average relative humidity in Metairie is 74%.Rainfall
In Metairie, during May, the rain falls for 8.6 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 104.1 rainfall days, and 8.39" (213mm) of precipitation is accumulated.Daylight
In Metairie, the average length of the day in May is 13h and 40min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:38 pm. On the last day of May, sunrise is at 6:00 am and sunset at 7:56 pm CDT.
Sunshine
In May, the average sunshine is 10.5h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 7 in May leads to these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Metairie, LA
- Average high temperature in May: 82.9°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in May: 70.9°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (47.8°F).
Average pressure in May
Metairie, LA
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed in May
Metairie, LA
- Average wind speed in May: 8mph
The windiest months (with the highest average wind speed) are February and April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Metairie, LA
- Average humidity in May: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Metairie, LA
- Average rainfall in May: 0.75"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is March (0.39").
Average rainfall days in May
Metairie, LA
- Average rainfall days in May: 8.6 days
The month with the highest number of rainy days is August (14.8 days).
The month with the least rainy days is November (4.5 days).
Average daylight in May /
Average sunshine in May
Metairie, LA
- Average daylight in May: 13h and 42min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in May: 10h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in May
Metairie, LA
- Average sunshine days in May: 19.7 days
The month with the most sunshine days is November (24.6 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in May
Metairie, LA
- Average UV index in May: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Metairie, LA
- Average cloud cover in May: 26
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in May
Metairie, LA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
