April Weather in Williams, United States

Last updated: June 24, 2025

In April, the average temperature in Williams, United States is a comfortable 17°C (63°F). However, be prepared for fluctuations, as temperatures can dip as low as 3°C (37°F) or soar up to 35°C (95°F). During this month, expect a precipitation amount of 28 mm (1.1 in) spread over about 6 days, contributing to an average humidity of 81%.

April Temperature in Williams

In April in Williams, the average temperature is 17°C (63°F). Maximums can reach 35°C (95°F), while minimums can drop to as low as 3°C (37°F). This diverse temperature range makes Williams an excellent destination for travelers seeking a mix of warm and cool weather experiences.

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

The chart illustrates April temperature patterns in Williams, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Williams, April typically has an average temperature of 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around 3°C (37°F).

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

April Precipitation in Williams

In Williams in April, the precipitation amount is 28 mm (1.1 in) over the course of 6 days.

April Precipitation Trends in Williams

The chart displays monthly precipitation patterns in Williams, 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 Williams, April typically receives around 28 mm (1.1 inches) of precipitation spread over approximately 6 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 Williams

In Williams in April humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

April Average Humidity in Williams

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

In Williams in April, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Williams.

Maximum UV Index Levels in Williams for April

The chart shows the monthly maximum UV Index (UVI) for Williams 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 Williams typically reaches 8, which falls under the very high exposure category.

Data source: Williams 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 Williams Compares to Other Months

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

This table compares monthly weather conditions in Williams, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	98 mm (3.8 inches)	84%	moderate
February Weather	12°C (53°F)	101 mm (4.0 inches)	84%	moderate
March Weather	13°C (56°F)	68 mm (2.7 inches)	83%	high
April Weather	17°C (63°F)	28 mm (1.1 inches)	81%	very high
May Weather	22°C (71°F)	22 mm (0.9 inches)	74%	extreme
June Weather	27°C (81°F)	4 mm (0.2 inches)	64%	extreme
July Weather	30°C (86°F)	0 mm (0.0 inches)	44%	extreme
August Weather	29°C (84°F)	1 mm (0.0 inches)	36%	very high
September Weather	25°C (77°F)	1 mm (0.0 inches)	44%	very high
October Weather	19°C (67°F)	25 mm (1.0 inches)	65%	high
November Weather	13°C (56°F)	34 mm (1.3 inches)	84%	moderate
December Weather	10°C (50°F)	68 mm (2.7 inches)	83%	moderate