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March Weather in Thornton, United States

Last updated: June 24, 2025

In Thornton, United States, the average temperature in March hovers around 17°C (63°F), with a range that can dip to a minimum of -5°C (23°F) and soar to a maximum of 30°C (86°F). Prepare for some rain, as precipitation averages 97 mm (3.8 in) over approximately 10 days. The air tends to be quite humid, with an average humidity level of 78%.

March Temperature in Thornton

In March in Thornton, the average temperature is 17°C (63°F), with maximums reaching 30°C (86°F) and minimums dropping as low as -5°C (23°F). This temperature variation makes it an ideal time to explore diverse outdoor activities, so be sure to pack accordingly for both warm and cool conditions.

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 17°C (63°F), with highs reaching up to 30°C (86°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec505262677582868681705954
Data source: Temperature data for Thornton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Thornton

In Thornton in March, the total precipitation amount is 97 mm (3.8 in) over a span 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 97 mm (3.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec7810297116168755984981096791
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Thornton

In Thornton in March, humidity is 78%. With an average temperature of 17°C (63°F), this humidity feels like a warm, enveloping blanket, making traveling slightly uncomfortable as you navigate the sticky air, prompting the need for frequent breaks in cooler, shaded areas.

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 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%80%78%79%81%77%71%67%69%73%82%87%
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 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 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 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111111121110864
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.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)78 mm (3.1 inches)79%moderate
February Weather11°C (52°F)102 mm (4.0 inches)80%high
March Weather17°C (63°F)97 mm (3.8 inches)78%very high
April Weather19°C (67°F)116 mm (4.6 inches)79%extreme
May Weather24°C (76°F)168 mm (6.6 inches)81%extreme
June Weather28°C (82°F)75 mm (3.0 inches)77%extreme
July Weather30°C (86°F)59 mm (2.3 inches)71%extreme
August Weather30°C (87°F)84 mm (3.3 inches)67%extreme
September Weather27°C (81°F)98 mm (3.9 inches)69%very high
October Weather21°C (71°F)109 mm (4.3 inches)73%very high
November Weather15°C (59°F)67 mm (2.6 inches)82%high
December Weather12°C (54°F)91 mm (3.6 inches)87%moderate

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