Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
The arrival of August sees an average high-temperature of a still tropical 91°F (32.8°C), hardly diverging from July's 91.2°F (32.9°C). Gretna Green, in August, experiences an average temperature of 73°F (22.8°C) at night.Heat index
Throughout August, the heat index is appraised at a burning hot 113°F (45°C). Keep wary: Heat cramps along with heat exhaustion are expected. Heatstroke is a possible outcome of ongoing activity.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Gretna Green, Louisiana, the average relative humidity in August is 75%.Rainfall
In Gretna Green, in August, it is raining for 15.5 days, with typically 2.87" (73mm) of accumulated precipitation. In Gretna Green, during the entire year, the rain falls for 154.1 days and collects up to 35.12" (892mm) of precipitation.Snowfall
In Gretna Green, snow does not fall in April through December.Daylight
In August, the average length of the day is 13h and 17min.On the first day of the month, sunrise is at 6:21 am and sunset at 8:02 pm. On the last day of August, in Gretna Green, sunrise is at 6:41 am and sunset at 7:30 pm CDT.
Sunshine
The average sunshine in August is 10.2h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 7 during August translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. 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. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
How hot is it in Gretna Green in August?
What is the average humidity in August in Gretna Green?
How many days does it rain in August in Gretna Green?
When it does not snow in Gretna Green?
What is the average length of the day in August in Gretna Green?
When is the sunrise / sunset in August in Gretna Green?
How long on average sun shines in August in Gretna Green?
When is the highest UV index in Gretna Green?
What is the UV index intensity in August in Gretna Green?
Average temperature in August
Gretna Green, LA
- Average high temperature in August: 91°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in August: 73°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in August
Gretna Green, LA
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in August
Gretna Green, LA
- Average wind speed in August: 5.4mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).
Average humidity in August
Gretna Green, LA
- Average humidity in August: 75%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).
Average rainfall in August
Gretna Green, LA
- Average rainfall in August: 2.87"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in August
Gretna Green, LA
- Average rainfall days in August: 15.5 days
The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in August
Gretna Green, LA
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Gretna Green, LA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Gretna Green, LA
- Average daylight in August: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in August: 10h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in August
Gretna Green, LA
- Average sunshine days in August: 13.7 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in August
Gretna Green, LA
- Average UV index in August: 7
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in August
Gretna Green, LA
- Average cloud cover in August: 31
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in August
Gretna Green, LA
- Average visibility in August: 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).
Gretna Green, Louisiana, USA
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