Climate and monthly weather forecast
Gretna Green, LA

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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 »
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

The coldest temperatures occur during January, when averages reach a peak of 55°F (12.8°C) and a low of 40.3°F (4.6°C).

How much does it rain?

Throughout the year, in Gretna Green, there are 154.1 rainfall days, and 35.12" (892mm) of precipitation is accumulated.

When does it snow?

January through March are months with snowfall.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 0.8 days and typically aggregates up to 0.55" (14mm) of snow.

How much does it snow?

In Gretna Green, during the entire year, snow falls for 1.6 days and aggregates up to 0.91" (23mm) of snow.

When is the lowest UV index?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

What is the most humid month?

With an average relative humidity of 81%, February is the most humid month.

When is Daylight Saving Time (DST) in Gretna Green?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month?

The month with the most rainfall is April, when the rain falls for 13.6 days and typically aggregates up to 3.43" (87mm) of precipitation.

When it does not snow?

April through December are months without snowfall.

When are the longest days?

The month with the longest days is June, with an average of 14h and 12min of daylight.

What month has the most sunshine?

The month with the most sunshine is June, with an average of 10.6h of sunshine.

When is the highest UV index in Gretna Green?

The months with the highest UV index are June through August, with an average maximum UV index of 7.

What is the warmest month?

July tends to be the warmest month, with temperatures averaging a daily high of 91.2°F (32.9°C) and a low of 72.9°F (22.7°C).

What is the least humid month?

The least humid month in Gretna Green is October, with an average relative humidity of 69%.

What is the driest month?

The month with the least rainfall is November, when the rain falls for 9.5 days and typically collects 2.13" (54mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 4.8h of sunshine.

Average temperature
Gretna Green, LA

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 - Gretna Green, LA

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 - Gretna Green, LA

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

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 - Gretna Green, LA

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 - Gretna Green, LA

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

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 - Gretna Green, LA

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 / Average sunshine - Gretna Green, LA

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).

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 - Gretna Green, LA

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

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 visibility
Gretna Green, LA

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).

Gretna Green, Louisiana, USA

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