April Weather in Sully, United States

Last updated: June 24, 2025

In April, the average temperature in Sully, United States hovers around 10°C (50°F). However, be prepared for a wide range, as temperatures can dip as low as -10°C (14°F) and soar up to 29°C (85°F). With an average precipitation of 74 mm (2.9 in) spread over 10 days, you might want to carry an umbrella. The average humidity stands at a comfortable 77%, adding to the overall climate experience.

April Temperature in Sully

In April in Sully, the average temperature is 10°C (50°F). The maximum can reach 29°C (85°F) and the minimum can be as low as -10°C (14°F). Be prepared for a wide range of temperatures when traveling to Sully this month.

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

The chart illustrates April temperature patterns in Sully, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sully, April typically has an average temperature of 10°C (50°F), with highs reaching up to 29°C (85°F) and lows dropping to around -10°C (14°F).

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

April Precipitation in Sully

In Sully in April, the precipitation amount is 74 mm (2.9 in) spread over a period of 10 days.

April Precipitation Trends in Sully

The chart displays monthly precipitation patterns in Sully, 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 Sully, April typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 10 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 Sully

In Sully in April, humidity is 77%. With an average temperature of 10°C (50°F), this humidity feels like a thick, heavy blanket enveloping you, making travel uncomfortable and sticky, as it clings to your skin and clothes, turning each step into a challenge.

April Average Humidity in Sully

This chart illustrates the average monthly humidity levels in Sully, 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 Sully is approximately 77%, 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 Sully

In Sully 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 Sully.

Maximum UV Index Levels in Sully for April

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

Data source: Sully 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 Sully Compares to Other Months

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

This table compares monthly weather conditions in Sully, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	44 mm (1.7 inches)	78%	moderate
February Weather	-4°C (24°F)	49 mm (1.9 inches)	80%	moderate
March Weather	4°C (40°F)	83 mm (3.3 inches)	77%	high
April Weather	10°C (50°F)	74 mm (2.9 inches)	77%	very high
May Weather	17°C (63°F)	163 mm (6.4 inches)	77%	very high
June Weather	23°C (74°F)	124 mm (4.9 inches)	81%	extreme
July Weather	25°C (77°F)	72 mm (2.8 inches)	81%	very high
August Weather	23°C (74°F)	65 mm (2.5 inches)	77%	very high
September Weather	20°C (69°F)	121 mm (4.8 inches)	73%	very high
October Weather	12°C (53°F)	137 mm (5.4 inches)	75%	high
November Weather	4°C (39°F)	49 mm (1.9 inches)	85%	moderate
December Weather	0°C (31°F)	40 mm (1.6 inches)	83%	moderate