April Weather in Castlewood, United States

Last updated: June 24, 2025

In April, the average temperature in Castlewood, United States hovers around 12°C (54°F), with a minimum chill of -5°C (24°F) and a warm maximum reaching 29°C (84°F). Expect average humidity levels at a comfortable 84% and prepare for some rainfall, as precipitation totals around 155 mm (6.1 in) over approximately 13 days.

April Temperature in Castlewood

In April in Castlewood, the average temperature is 12°C (54°F), with maximums reaching 29°C (84°F) and minimums dropping as low as -5°C (24°F). This variety in temperature makes it essential for travelers to pack accordingly, ensuring comfort for both warmer days and cooler nights.

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

The chart illustrates April temperature patterns in Castlewood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castlewood, April typically has an average temperature of 12°C (54°F), with highs reaching up to 29°C (84°F) and lows dropping to around -5°C (24°F).

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

April Precipitation in Castlewood

In Castlewood in April, the precipitation amount is 155 mm (6.1 in) over the course of 13 days.

April Precipitation Trends in Castlewood

The chart displays monthly precipitation patterns in Castlewood, 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 Castlewood, April typically receives around 155 mm (6.1 inches) of precipitation spread over approximately 13 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 Castlewood

In Castlewood in April, humidity is 84%. With an average temperature of 12°C (54°F), this humidity feels like a damp blanket enveloping you, making travel uncomfortable and sticky.

April Average Humidity in Castlewood

This chart illustrates the average monthly humidity levels in Castlewood, 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 Castlewood is approximately 84%, 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 Castlewood

In Castlewood 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 Castlewood.

Maximum UV Index Levels in Castlewood for April

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

Data source: Castlewood 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 Castlewood Compares to Other Months

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

This table compares monthly weather conditions in Castlewood, 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 (36°F)	91 mm (3.6 inches)	87%	moderate
February Weather	5°C (42°F)	164 mm (6.4 inches)	87%	high
March Weather	8°C (47°F)	126 mm (5.0 inches)	86%	very high
April Weather	12°C (54°F)	155 mm (6.1 inches)	84%	very high
May Weather	18°C (64°F)	129 mm (5.1 inches)	83%	extreme
June Weather	21°C (69°F)	149 mm (5.8 inches)	83%	extreme
July Weather	23°C (73°F)	114 mm (4.5 inches)	79%	extreme
August Weather	22°C (71°F)	131 mm (5.1 inches)	66%	very high
September Weather	20°C (68°F)	118 mm (4.6 inches)	68%	very high
October Weather	14°C (58°F)	127 mm (5.0 inches)	78%	high
November Weather	7°C (44°F)	77 mm (3.0 inches)	89%	moderate
December Weather	4°C (40°F)	122 mm (4.8 inches)	86%	moderate