April Weather in Walnut, United States

Last updated: June 24, 2025

In April, the average temperature in Walnut, United States hovers around 16°C (61°F). During this month, temperatures can dip as low as -2°C (29°F) and soar to a maximum of 30°C (86°F). With an average humidity of 81%, you can expect a fair amount of moisture, as precipitation levels reach 148 mm (5.8 in) over about 10 days. Stay prepared for a mix of weather!

April Temperature in Walnut

In April in Walnut, the average temperature is 16°C (61°F). The maximum can reach 30°C (86°F) and the minimum can be as low as -2°C (29°F). This weather makes it a great time for travelers to experience a range of outdoor activities, from enjoying warm days to embracing cooler evenings.

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

The chart illustrates April temperature patterns in Walnut, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Walnut, April typically has an average temperature of 16°C (61°F), with highs reaching up to 30°C (86°F) and lows dropping to around -2°C (29°F).

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

April Precipitation in Walnut

In Walnut in April, the total precipitation amount is 148 mm (5.8 in) recorded over a span of 10 days.

April Precipitation Trends in Walnut

The chart displays monthly precipitation patterns in Walnut, 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 Walnut, April typically receives around 148 mm (5.8 inches) of precipitation spread over approximately 10 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 Walnut

In Walnut in April, humidity is 81%. With an average temperature of 16°C (61°F), this humidity feels like a warm, heavy blanket wrapping around you as you explore the sights, making it essential to stay hydrated and take regular breaks in the shade.

April Average Humidity in Walnut

This chart illustrates the average monthly humidity levels in Walnut, 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 Walnut 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 Walnut

In Walnut 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 Walnut.

Maximum UV Index Levels in Walnut for April

The chart shows the monthly maximum UV Index (UVI) for Walnut 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 Walnut typically reaches 10, which falls under the very high exposure category.

Data source: Walnut 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 Walnut Compares to Other Months

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

This table compares monthly weather conditions in Walnut, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	107 mm (4.2 inches)	86%	moderate
February Weather	8°C (47°F)	176 mm (6.9 inches)	85%	high
March Weather	13°C (55°F)	157 mm (6.2 inches)	84%	very high
April Weather	16°C (61°F)	148 mm (5.8 inches)	81%	very high
May Weather	22°C (71°F)	109 mm (4.3 inches)	83%	extreme
June Weather	26°C (78°F)	112 mm (4.4 inches)	83%	extreme
July Weather	27°C (81°F)	131 mm (5.2 inches)	80%	extreme
August Weather	26°C (79°F)	116 mm (4.6 inches)	73%	very high
September Weather	24°C (76°F)	122 mm (4.8 inches)	70%	very high
October Weather	18°C (65°F)	113 mm (4.4 inches)	73%	high
November Weather	10°C (50°F)	79 mm (3.1 inches)	85%	moderate
December Weather	8°C (47°F)	147 mm (5.8 inches)	88%	moderate