Climate and monthly weather forecastGretna Green, LA
Climate and monthly weather forecast
Weather in January
January, like December, in Gretna Green, Louisiana, is a cool winter month, with an average temperature fluctuating between 55°F (12.8°C) and 40.3°F (4.6°C). With its high average temperature of 55°F (12.8°C) and a low of 40.3°F (4.6°C), January is regarded as the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a refreshing month in Gretna Green, Louisiana, with an average temperature fluctuating between 59.7°F (15.4°C) and 44.4°F (6.9°C). Transitioning from January to February, Gretna Green observes an average high-temperature of a refreshing 59.7°F (15.4°C), differing subtly from the previous month. Weather in February »Weather in March
March, the first month of the spring in Gretna Green, is a comfortable month, with an average temperature fluctuating between 67.6°F (19.8°C) and 50.5°F (10.3°C). Gretna Green's transition into March is noticed by a slight rise in the average high-temperature, advancing from a moderate 59.7°F (15.4°C) in February to a still refreshing 67.6°F (19.8°C). Weather in March »Weather in April
April is a warm spring month in Gretna Green, Louisiana, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 75.6°F (24.2°C). The embrace of April brings a minor uplift in the average high-temperature, shifting from a refreshing 67.6°F (19.8°C) in March to a moderately hot 75.6°F (24.2°C). Weather in April »Weather in May
The last month of the spring, May, is also a moderately hot month in Gretna Green, Louisiana, with an average temperature varying between 64.4°F (18°C) and 83.1°F (28.4°C). As May arrives, a slight rise in the average high-temperature is observed, moving from 75.6°F (24.2°C) in April to a still moderately hot 83.1°F (28.4°C). Weather in May »Weather in June
June, the first month of the summer in Gretna Green, is a hot month, with an average temperature varying between 71.4°F (21.9°C) and 89.2°F (31.8°C). In Gretna Green, the average high-temperature in June slightly increases from a moderately hot 83.1°F (28.4°C) in May to a hot 89.2°F (31.8°C). Weather in June »Weather in July
July, the same as June, in Gretna Green, Louisiana, is another hot summer month, with temperature in the range of an average low of 72.9°F (22.7°C) and an average high of 91.2°F (32.9°C). July is the warmest month, with an average high-temperature of 91.2°F (32.9°C) and an average low-temperature of 72.9°F (22.7°C). July's average heat index is calculated to be a blazing hot 114.8°F (46°C). Weather in July »Weather in August
August, the last month of the summer in Gretna Green, is another tropical month, with temperature in the range of an average high of 91°F (32.8°C) and an average low of 73°F (22.8°C). During August, Gretna Green records an average high-temperature of a still hot 91°F (32.8°C), marking a slight divergence from July's 91.2°F (32.9°C). Weather in August »Weather in September
The first month of the autumn, September, is also a hot month in Gretna Green, Louisiana, with an average temperature fluctuating between 87.8°F (31°C) and 68°F (20°C). September's advent presents an average high-temperature of a still tropical 87.8°F (31°C), indicating a slight variation from the conditions of the previous month. Weather in September »Weather in October
October, the same as September, is another warm autumn month in Gretna Green, Louisiana, with temperature in the range of an average low of 58.1°F (14.5°C) and an average high of 77.9°F (25.5°C). October brings a decrease in the average high-temperature, falling from September's hot 87.8°F (31°C) to a warm 77.9°F (25.5°C). Weather in October »Weather in November
November, the last month of the autumn in Gretna Green, is another comfortable month, with an average temperature varying between 65.1°F (18.4°C) and 48.4°F (9.1°C). Gretna Green in November demonstrates a small temperature transition, adjusting from an average high of a warm 77.9°F (25.5°C) in October to an enjoyable 65.1°F (18.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a moderate month in Gretna Green, Louisiana, with an average temperature ranging between max 58.1°F (14.5°C) and min 44.1°F (6.7°C). In Gretna Green, the average high-temperature in December gently drops from a comfortable 65.1°F (18.4°C) in November to a moderate 58.1°F (14.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Gretna Green, LA
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).
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
Gretna Green, LA
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.96"Hg
- Average pressure in July:
29.99"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"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
Gretna Green, LA
- Average wind speed in January:
7.9mph - Average wind speed in February:
8.3mph - Average wind speed in March:
8mph - Average wind speed in April:
7.8mph - Average wind speed in May:
6.4mph - Average wind speed in June:
5.8mph
- Average wind speed in July:
5.3mph - Average wind speed in August:
5.4mph - Average wind speed in September:
5.3mph - Average wind speed in October:
6.5mph - Average wind speed in November:
7.2mph - Average wind speed in December:
7.6mph
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
Gretna Green, LA
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Gretna Green, LA
- Average rainfall in January:
3.31" - Average rainfall in February:
3.23" - Average rainfall in March:
3.27" - Average rainfall in April:
3.43" - Average rainfall in May:
2.99" - Average rainfall in June:
2.44"
- Average rainfall in July:
3.23" - Average rainfall in August:
2.87" - Average rainfall in September:
2.2" - Average rainfall in October:
2.68" - Average rainfall in November:
2.13" - Average rainfall in December:
3.35"
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
Gretna Green, LA
- Average rainfall days in January:
11.3 days - Average rainfall days in February:
12.8 days - Average rainfall days in March:
14.9 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
13.4 days
- Average rainfall days in July:
15.2 days - Average rainfall days in August:
15.5 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
8.5 days - Average rainfall days in November:
9.5 days - Average rainfall days in December:
12.9 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
Gretna Green, LA
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
Gretna Green, LA
- Average snowfall days in January:
0.8 days - Average snowfall days in February:
0.5 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0 days - Average snowfall days in December:
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 / Average sunshine
Gretna Green, LA
- Average daylight in January:
10h and 18min - Average daylight in February:
11h and 6min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 48min - Average daylight in June:
14h and 12min
- Average daylight in July:
14h and 0min - Average daylight in August:
13h and 18min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 24min - Average daylight in November:
10h and 30min - Average daylight in December:
10h and 6min
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 January:
5h and 12min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 54min - Average sunshine in April:
9h and 6min - Average sunshine in May:
9h and 54min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 42min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 48min
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
Gretna Green, LA
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
14.6 days - Average sunshine days in May:
15.3 days - Average sunshine days in June:
14.2 days
- Average sunshine days in July:
14.2 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
21.4 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
15.8 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
Gretna Green, LA
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
Gretna Green, LA
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
Gretna Green, LA
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).





