April Weather in Gretna, United States

Last updated: June 24, 2025

In April, the average temperature in Gretna, United States is a pleasant 20°C (68°F). Expect minimums as low as 4°C (39°F) and maximums reaching 33°C (91°F). Be prepared for some rain, with 101 mm (4.0 in) of precipitation spread over 8 days. Humidity levels hover around 76%, adding a bit of moisture to the air.

April Temperature in Gretna

In April in Gretna, the average temperature is 20°C (68°F). Maximums can reach 33°C (91°F) and minimums can be as low as 4°C (39°F). This makes Gretna a great destination for travelers looking to enjoy a mild climate with a variety of temperature experiences.

April Weather in Gretna: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Gretna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gretna, April typically has an average temperature of 20°C (68°F), with highs reaching up to 33°C (91°F) and lows dropping to around 4°C (39°F).

Data source: Temperature data for Gretna generated using information from the Copernicus Climate Change Service.

April Precipitation in Gretna

In Gretna in April, the precipitation amount is 101 mm (4.0 in) spread over 8 days.

April Precipitation Trends in Gretna

The chart displays monthly precipitation patterns in Gretna, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Gretna, April typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

April Humidity in Gretna

In Gretna in April, humidity is 76%. With an average temperature of 20°C (68°F), this humidity feels like a warm blanket wrapping around you, making outdoor exploration both exhilarating and slightly stifling, ideal for leisurely strolls but necessitating frequent breaks to hydrate and cool off.

April Average Humidity in Gretna

This chart illustrates the average monthly humidity levels in Gretna, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Gretna is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Gretna

In Gretna in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Gretna.

Maximum UV Index Levels in Gretna for April

The chart shows the monthly maximum UV Index (UVI) for Gretna in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In April, the maximum UV index in Gretna typically reaches 10, which falls under the very high exposure category.

Data source: Gretna April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How April Weather in Gretna Compares to Other Months

Weather in Gretna varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Gretna, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Gretna, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (54°F)	82 mm (3.2 inches)	85%	moderate
February Weather	15°C (60°F)	116 mm (4.6 inches)	82%	very high
March Weather	17°C (63°F)	57 mm (2.2 inches)	80%	very high
April Weather	20°C (68°F)	101 mm (4.0 inches)	76%	very high
May Weather	24°C (76°F)	87 mm (3.4 inches)	73%	extreme
June Weather	26°C (80°F)	176 mm (6.9 inches)	74%	extreme
July Weather	27°C (81°F)	169 mm (6.6 inches)	80%	extreme
August Weather	27°C (81°F)	165 mm (6.5 inches)	79%	extreme
September Weather	26°C (79°F)	140 mm (5.5 inches)	83%	very high
October Weather	23°C (73°F)	99 mm (3.9 inches)	77%	very high
November Weather	16°C (60°F)	46 mm (1.8 inches)	84%	high
December Weather	13°C (56°F)	126 mm (5.0 inches)	88%	moderate