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October Weather in Thornton, United States

Last updated: June 24, 2025

In October, the average temperature in Thornton, United States is a pleasant 21°C (71°F). However, you can expect a range, with minimums dipping to 2°C (37°F) and maximums soaring to 36°C (97°F). Be prepared for 109 mm (4.3 in) of precipitation over approximately 9 days, and note that the average humidity is a comfortable 73%.

October Temperature in Thornton

In October in Thornton, the average temperature is 21°C (71°F). Maximum temperatures can reach 36°C (97°F), while minimums can drop to as low as 2°C (37°F). This wide range of temperatures makes Thornton a versatile destination for travelers, offering opportunities for both warm-weather activities and cooler, refreshing experiences.

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

The chart illustrates October 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, October typically has an average temperature of 21°C (71°F), with highs reaching up to 36°C (97°F) and lows dropping to around 2°C (37°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.

October Precipitation in Thornton

In Thornton in October, the total precipitation amount is 109 mm (4.3 in) spread over 9 days.

October Precipitation Trends in Thornton

The chart displays monthly precipitation patterns in Thornton, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Thornton, October typically receives around 109 mm (4.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7810297116168755984981096791
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Thornton

In Thornton in October humidity is 73%. With an average temperature of 21°C (71°F), this humidity feels like a warm, enveloping blanket that can make outdoor activities a bit uncomfortable, but with proper hydration and breaks in the shade, it’s still manageable for traveling.

October Average Humidity in Thornton

This chart illustrates the average monthly humidity levels in Thornton, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Thornton is approximately 73%, 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 October generated using information from the Copernicus Climate Change Service.

October UV Index in Thornton

In Thornton in October, 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 October

The chart shows the monthly maximum UV Index (UVI) for Thornton in October, 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 October, the maximum UV index in Thornton typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478111111121110864
Data source: Thornton October 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 October 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 October’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 October’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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