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October Weather in Boulder City, United States

Last updated: June 24, 2025

In Boulder City, United States, the average temperature in October is a pleasant 21°C (71°F). Expect a minimum chill of 2°C (36°F) and a hot maximum of 38°C (101°F). With precipitation at a mere 8 mm (0.3 in) over 1 day and an average humidity of 59%, the weather is generally comfortable for outdoor activities.

October Temperature in Boulder City

In October in Boulder City, the average temperature is 21°C (71°F), with maximums reaching up to 38°C (101°F) and minimums dropping as low as 2°C (36°F). Be prepared for both warm days and cool nights, making it essential to pack a versatile wardrobe for your travels.

October Weather in Boulder City: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Boulder City, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Boulder City, October typically has an average temperature of 21°C (71°F), with highs reaching up to 38°C (101°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec495361717891959486706049
Data source: Temperature data for Boulder City 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 Boulder City

In Boulder City in October, the precipitation amount is 8 mm (0.3 in) over the course of 1 day.

October Precipitation Trends in Boulder City

The chart displays monthly precipitation patterns in Boulder City, 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 Boulder City, October typically receives around 8 mm (0.3 inches) of precipitation spread over approximately 1 days.
JanFebMarAprMayJunJulAugSepOctNovDec2122205611811581916
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Boulder City

In Boulder City in October, humidity is 59%. With an average temperature of 21°C (71°F), this humidity feels like a gentle embrace, making it comfortable for exploring the sights while experiencing a pleasant warmth that invites leisurely strolls.

October Average Humidity in Boulder City

This chart illustrates the average monthly humidity levels in Boulder City, 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 Boulder City is approximately 59%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%80%68%58%45%31%27%30%48%60%70%77%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Boulder City

In Boulder City in October, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Boulder City.

Maximum UV Index Levels in Boulder City for October

The chart shows the monthly maximum UV Index (UVI) for Boulder City 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 Boulder City typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101112121110753
Data source: Boulder City 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 Boulder City Compares to Other Months

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

This table compares monthly weather conditions in Boulder City, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)21 mm (0.8 inches)77%moderate
February Weather12°C (53°F)21 mm (0.8 inches)80%high
March Weather16°C (61°F)20 mm (0.8 inches)68%very high
April Weather22°C (71°F)5 mm (0.2 inches)58%very high
May Weather26°C (78°F)6 mm (0.2 inches)45%extreme
June Weather33°C (91°F)1 mm (0.0 inches)31%extreme
July Weather35°C (96°F)17 mm (0.7 inches)27%extreme
August Weather35°C (95°F)11 mm (0.4 inches)30%extreme
September Weather30°C (86°F)5 mm (0.2 inches)48%very high
October Weather21°C (71°F)8 mm (0.3 inches)59%high
November Weather15°C (60°F)19 mm (0.7 inches)70%moderate
December Weather10°C (50°F)15 mm (0.6 inches)77%moderate

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