April Weather in Sterling, United States

Last updated: June 24, 2025

In April, the average temperature in Sterling, United States hovers around 4°C (39°F). Expect a chill in the air, with minimum temperatures dipping to -15°C (6°F) and a maximum rise to 17°C (63°F). During this time, the area sees about 36 mm (1.4 in) of precipitation spread over 11 days, contributing to an average humidity of a damp 82%. Prepare accordingly!

April Temperature in Sterling

In April in Sterling, the average temperature is 4°C (39°F), with maximums reaching 17°C (63°F) and minimums dropping as low as -15°C (6°F). Be sure to pack warm clothing and be prepared for a range of temperatures if you’re planning to travel during this time.

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

The chart illustrates April temperature patterns in Sterling, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sterling, April typically has an average temperature of 4°C (39°F), with highs reaching up to 17°C (63°F) and lows dropping to around -15°C (6°F).

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

April Precipitation in Sterling

In Sterling in April, the precipitation amount is 36 mm (1.4 in) occurring over the course of 11 days.

April Precipitation Trends in Sterling

The chart displays monthly precipitation patterns in Sterling, 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 Sterling, April typically receives around 36 mm (1.4 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 Sterling

In Sterling in April, humidity is 82%. With an average temperature of 4°C (39°F), this humidity feels like a chill that seeps into your bones, making it uncomfortable for traveling as you find yourself bundled up, yet still damp and cold.

April Average Humidity in Sterling

This chart illustrates the average monthly humidity levels in Sterling, 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 Sterling is approximately 82%, 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 Sterling

In Sterling in April, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Sterling for better planning.

Maximum UV Index Levels in Sterling for April

The chart shows the monthly maximum UV Index (UVI) for Sterling 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 Sterling typically reaches 4, which falls under the moderate exposure category.

Data source: Sterling 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 Sterling Compares to Other Months

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

This table compares monthly weather conditions in Sterling, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-7°C (19°F)	53 mm (2.1 inches)	95%	low
February Weather	-5°C (23°F)	50 mm (1.9 inches)	95%	low
March Weather	-3°C (27°F)	39 mm (1.5 inches)	90%	moderate
April Weather	4°C (39°F)	36 mm (1.4 inches)	82%	moderate
May Weather	10°C (49°F)	67 mm (2.6 inches)	85%	high
June Weather	13°C (56°F)	66 mm (2.6 inches)	95%	high
July Weather	16°C (61°F)	75 mm (2.9 inches)	100%	high
August Weather	15°C (59°F)	98 mm (3.9 inches)	99%	high
September Weather	11°C (51°F)	113 mm (4.4 inches)	97%	moderate
October Weather	5°C (42°F)	127 mm (5.0 inches)	93%	low
November Weather	-2°C (28°F)	91 mm (3.6 inches)	97%	low
December Weather	-3°C (26°F)	110 mm (4.3 inches)	98%	low