Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The start of April signals a slight increase in the average high-temperature, moving from a pleasant 70.7°F (21.5°C) in March to a warm 77°F (25°C). In April, Gretna records an average nighttime temperature of 64.2°F (17.9°C).Humidity
The average relative humidity in April is 73%.Rainfall
March and April are months with the least rain when the rain falls for 6.7 days and typically aggregates up to 0.43" (11mm) of rain.Snowfall
February through December are months without snowfall.Daylight
In Gretna, the average length of the day in April is 12h and 55min.On the first day of April, sunrise is at 6:48 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 7:37 pm CDT.
Sunshine
In April, the average sunshine is 9.9h.UV index
In April, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 6 during April morphs into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. 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
What are April temperatures?
What is the average humidity in April?
What is the driest month?
How much does it rain in April?
When it does not snow?
What is the average length of the day in April in Gretna?
What time are sunrise and sunset in April in Gretna?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Gretna, LA
- Average high temperature in April: 77°F
The warmest months (with the highest average high temperature) are July and August (89.4°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in April: 64.2°F
The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (48.6°F).
Average pressure in April
Gretna, LA
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed in April
Gretna, LA
- Average wind speed in April: 9.8mph
The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in April
Gretna, LA
- Average humidity in April: 73%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is October (71%).
Average rainfall in April
Gretna, LA
- Average rainfall in April: 0.43"
The wettest month (with the highest rainfall) is July (1.57").
The driest months (with the least rainfall) are March and April (0.43").
Average rainfall days in April
Gretna, LA
- Average rainfall days in April: 6.7 days
The month with the highest number of rainy days is August (17.2 days).
The month with the least rainy days is November (4.7 days).
Average snowfall days in April
Gretna, LA
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is January (0.1 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 April /
Average sunshine in April
Gretna, LA
- Average daylight in April: 12h and 5min
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 April: 9h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in April
Gretna, LA
- Average sunshine days in April: 21.8 days
The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is August (8.9 days).
Average UV index in April
Gretna, LA
- Average UV index in April: 6
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in April
Gretna, LA
- Average cloud cover in April: 31
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in April
Gretna, LA
- Average visibility in April: 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, Louisiana, USA
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