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
May's onset is marked by a subtle temperature increase, moving from a moderately hot 78.4°F (25.8°C) in April to a still warm 85.3°F (29.6°C). Grand River's nighttime temperature in May falls to an average of 66.4°F (19.1°C).Heat index
Throughout May, the heat index is estimated at a torrid 96.8°F (36°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Heat index readings emphasize conditions of light breezes and shaded spots. 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 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The average relative humidity in May is 77%.Rainfall
In May, the rain falls for 12.1 days. Throughout May, 1.3" (33mm) of precipitation is accumulated. In Grand River, during the entire year, the rain falls for 148.6 days and collects up to 15.51" (394mm) of precipitation.Snowfall
In Grand River, snow does not fall in February through December.Daylight
In Grand River, the average length of the day in May is 13h and 41min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:43 pm. On the last day of May, sunrise is at 6:04 am and sunset at 8:02 pm CDT.
Sunshine
The average sunshine in May is 10h.UV index
In Grand River, Louisiana, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 6 during May, leads to the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in May?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May in Grand River?
How high is the UV index in May?
Average temperature in May
Grand River, LA
- Average high temperature in May: 85.3°F
The warmest months (with the highest average high temperature) are July and August (91.2°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in May: 66.4°F
The month with the highest average low temperature is August (74.5°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).
Average pressure in May
Grand River, LA
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed in May
Grand River, LA
- Average wind speed in May: 5.6mph
The windiest month (with the highest average wind speed) is February (6.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in May
Grand River, LA
- Average humidity in May: 77%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
Grand River, LA
- Average rainfall in May: 1.3"
The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in May
Grand River, LA
- Average rainfall days in May: 12.1 days
The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in May
Grand River, LA
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Grand River, 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, November and December (0 days).
Average daylight in May /
Average sunshine in May
Grand River, LA
- Average daylight in May: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in May
Grand River, LA
- Average sunshine days in May: 16.2 days
The month with the most sunshine days is November (21.4 days).
The months with the least sunshine days are July and August (7.3 days).
Average UV index in May
Grand River, LA
- 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 3).
Average cloud cover in May
Grand River, LA
- Average cloud cover in May: 33
The months with the most cloud cover are February and December (Cloud cover 47).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in May
Grand River, LA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, June, October, November and December (6mi).
The months with the lowest visibility are March, April, May, July, August and September (5mi).
Grand River, Louisiana, USA
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