April Weather in Delta, United States

Last updated: June 24, 2025

In April, the average temperature in Delta, United States hovers around 12°C (54°F), with a range that can dip to a brisk -2°C (29°F) or soar to a warm 31°C (87°F). Expect about 100 mm (3.9 in) of precipitation over 11 days, contributing to an average humidity of 81%. Be prepared for a mix of weather that showcases the unique charm of this locale!

April Temperature in Delta

In April in Delta, the average temperature is 12°C (54°F). Maximums can reach 31°C (87°F), and minimums can drop as low as -2°C (29°F). Be prepared for a wide range of weather conditions when traveling during this month.

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

The chart illustrates April temperature patterns in Delta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Delta, April typically has an average temperature of 12°C (54°F), with highs reaching up to 31°C (87°F) and lows dropping to around -2°C (29°F).

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

April Precipitation in Delta

In Delta in April, the precipitation amount is 100 mm (3.9 in) over the course of 11 days.

April Precipitation Trends in Delta

The chart displays monthly precipitation patterns in Delta, 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 Delta, April typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 11 days.

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

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Millimeters (mm) Inches (in)

April Humidity in Delta

In Delta in April humidity is 81%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel sluggish and uncomfortable as you battle the stickiness while trying to enjoy your surroundings.

April Average Humidity in Delta

This chart illustrates the average monthly humidity levels in Delta, 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 Delta is approximately 81%, 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 Delta

In Delta in April, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Delta.

Maximum UV Index Levels in Delta for April

The chart shows the monthly maximum UV Index (UVI) for Delta 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 Delta typically reaches 9, which falls under the very high exposure category.

Data source: Delta 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 Delta Compares to Other Months

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

This table compares monthly weather conditions in Delta, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	61 mm (2.4 inches)	84%	moderate
February Weather	3°C (38°F)	97 mm (3.8 inches)	83%	moderate
March Weather	6°C (44°F)	100 mm (3.9 inches)	83%	high
April Weather	12°C (54°F)	100 mm (3.9 inches)	81%	very high
May Weather	18°C (64°F)	140 mm (5.5 inches)	78%	very high
June Weather	23°C (73°F)	108 mm (4.3 inches)	79%	very high
July Weather	26°C (79°F)	150 mm (5.9 inches)	74%	very high
August Weather	24°C (76°F)	144 mm (5.7 inches)	72%	very high
September Weather	21°C (70°F)	111 mm (4.4 inches)	75%	very high
October Weather	16°C (60°F)	101 mm (4.0 inches)	81%	high
November Weather	7°C (46°F)	88 mm (3.5 inches)	85%	moderate
December Weather	4°C (39°F)	98 mm (3.9 inches)	84%	moderate