April Weather in Thornton, United States

Last updated: June 24, 2025

In April, the average temperature in Thornton, United States is a pleasant 17°C (63°F), with minimums dipping as low as 4°C (40°F) and soaring to a comfortable 35°C (95°F). Expect about 39 mm (1.5 in) of precipitation over 5 days, and don't forget to prepare for an average humidity of 81%.

April Temperature in Thornton

In April in Thornton, the average temperature is 17°C (63°F), with maximums reaching 35°C (95°F) and minimums dropping as low as 4°C (40°F). Be prepared for a wide range of temperatures if you plan to visit during this time.

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

The chart illustrates April temperature patterns in Thornton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Thornton, 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 4°C (40°F).

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

April Precipitation in Thornton

In Thornton in April, the precipitation amount is 39 mm (1.5 in) spread over a duration of 5 days.

April Precipitation Trends in Thornton

The chart displays monthly precipitation patterns in Thornton, 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 Thornton, April typically receives around 39 mm (1.5 inches) of precipitation spread over approximately 5 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 Thornton

In Thornton 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 Thornton

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

In Thornton 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 Thornton.

Maximum UV Index Levels in Thornton for April

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

Data source: Thornton 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 Thornton Compares to Other Months

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

This table compares monthly weather conditions in Thornton, 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)	116 mm (4.6 inches)	84%	moderate
February Weather	12°C (53°F)	100 mm (3.9 inches)	84%	moderate
March Weather	14°C (57°F)	83 mm (3.3 inches)	83%	high
April Weather	17°C (63°F)	39 mm (1.5 inches)	81%	very high
May Weather	20°C (68°F)	17 mm (0.7 inches)	74%	very high
June Weather	23°C (74°F)	2 mm (0.1 inches)	64%	extreme
July Weather	24°C (75°F)	0 mm (0.0 inches)	44%	extreme
August Weather	24°C (75°F)	0 mm (0.0 inches)	36%	very high
September Weather	23°C (73°F)	1 mm (0.0 inches)	44%	very high
October Weather	19°C (66°F)	36 mm (1.4 inches)	65%	high
November Weather	13°C (56°F)	46 mm (1.8 inches)	84%	moderate
December Weather	10°C (50°F)	95 mm (3.7 inches)	83%	moderate