May weather forecastHackberry, LA
May
Weather in May
The last month of the spring, May, is another warm month in Hackberry, Louisiana, with an average temperature varying between 70°F (21.1°C) and 84.2°F (29°C).Temperature
May brings a slight rise in Hackberry's average high-temperature, moving from 77.4°F (25.2°C) in April to a still warm 84.2°F (29°C). The temperature lowers to an average of 70°F (21.1°C) during May nights.Heat index
The heat index value for May is appraised at a hot 91.4°F (33°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In May, the average relative humidity in Hackberry is 74%.Rainfall
In Hackberry, during May, the rain falls for 11.6 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 168 rainfall days, and 34.96" (888mm) of precipitation is accumulated.Snowfall
February through November are months without snowfall.Daylight
In Hackberry, the average length of the day in May is 13h and 40min.On the first day of May in Hackberry, Louisiana, sunrise is at 6:29 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:09 pm CDT.
Sunshine
In May, the average sunshine is 10.2h.UV index
May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 7 during May translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Hackberry, LA
- Average high temperature in May: 84.2°F
The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in May: 70°F
The month with the highest average low temperature is July (77.2°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in May
Hackberry, LA
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).
Average wind speed in May
Hackberry, LA
- Average wind speed in May: 9mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Hackberry, LA
- Average humidity in May: 74%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Hackberry, LA
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is August (5").
The driest month (with the least rainfall) is April (2.09").
Average rainfall days in May
Hackberry, LA
- Average rainfall days in May: 11.6 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is November (9.7 days).
Average snowfall in May
Hackberry, LA
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Hackberry, LA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Hackberry, 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 12min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in May
Hackberry, LA
- Average sunshine days in May: 17.5 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is August (10.3 days).
Average UV index in May
Hackberry, LA
- Average UV index in May: 7
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in May
Hackberry, LA
- Average cloud cover in May: 30
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in May
Hackberry, 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).





