March Weather in Thornton, United States

Last updated: June 24, 2025

In March, the average temperature in Thornton, United States hovers around -2°C (28°F), with extremes reaching as low as -21°C (-6°F) and peaking at a comfortable 18°C (64°F). During this month, expect around 75 mm (2.9 in) of precipitation over 10 days, contributing to an average humidity of 82%. Stay prepared for varying conditions!

March Temperature in Thornton

In March in Thornton, the average temperature is -2°C (28°F), with maximums reaching 18°C (64°F) and minimums dropping as low as -21°C (-6°F). Travelers should be prepared for cold weather and potential temperature fluctuations during this time.

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

The chart illustrates March 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, March typically has an average temperature of -2°C (28°F), with highs reaching up to 18°C (64°F) and lows dropping to around -21°C (-6°F).

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

March Precipitation in Thornton

In Thornton in March, the precipitation amount is 75 mm (2.9 in) spread over a period of 10 days.

March Precipitation Trends in Thornton

The chart displays monthly precipitation patterns in Thornton, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Thornton, March typically receives around 75 mm (2.9 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

March Humidity in Thornton

In Thornton in March, humidity is 82%. With an average temperature of -2°C (28°F), this humidity feels like an icy shroud enveloping you, making every breath feel crisp and biting as you navigate through a winter wonderland, each step a reminder of the contrast between the cold air and the heavy moisture lingering in the atmosphere.

March Average Humidity in Thornton

This chart illustrates the average monthly humidity levels in Thornton, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Thornton is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Thornton

In Thornton in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Thornton, you can refer to this Hourly UV Index in Thornton.

Maximum UV Index Levels in Thornton for March

The chart shows the monthly maximum UV Index (UVI) for Thornton in March, 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 March, the maximum UV index in Thornton typically reaches 6, which falls under the high exposure category.

Data source: Thornton March 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 March 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 March’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 March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	85 mm (3.4 inches)	86%	moderate
February Weather	-6°C (21°F)	86 mm (3.4 inches)	84%	moderate
March Weather	-2°C (28°F)	75 mm (2.9 inches)	82%	high
April Weather	5°C (41°F)	129 mm (5.1 inches)	80%	very high
May Weather	12°C (53°F)	98 mm (3.9 inches)	72%	very high
June Weather	17°C (63°F)	105 mm (4.1 inches)	72%	very high
July Weather	20°C (68°F)	135 mm (5.3 inches)	67%	very high
August Weather	19°C (66°F)	99 mm (3.9 inches)	66%	very high
September Weather	15°C (59°F)	71 mm (2.8 inches)	71%	high
October Weather	8°C (47°F)	143 mm (5.6 inches)	78%	moderate
November Weather	0°C (33°F)	119 mm (4.7 inches)	84%	moderate
December Weather	-5°C (23°F)	113 mm (4.5 inches)	81%	low