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October Weather in San Tan Valley, United States

Last updated: June 24, 2025

In October, the average temperature in San Tan Valley, United States is a pleasant 24°C (75°F). However, be prepared for fluctuations, as temperatures can dip to a chilly 5°C (42°F) or soar up to a sweltering 40°C (104°F). Expect 20 mm (0.8 in) of precipitation spread over about 2 days, with an average humidity of 67% ensuring a vibrant atmosphere.

October Temperature in San Tan Valley

In October in San Tan Valley, the average temperature is 24°C (75°F). Maximum temperatures can reach 40°C (104°F), while minimums can drop to as low as 5°C (42°F). Be prepared for a wide range of temperatures if you're traveling during this time.

October Weather in San Tan Valley: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in San Tan Valley, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In San Tan Valley, October typically has an average temperature of 24°C (75°F), with highs reaching up to 40°C (104°F) and lows dropping to around 5°C (42°F).
JanFebMarAprMayJunJulAugSepOctNovDec545663738091939287756554
Data source: Temperature data for San Tan Valley 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 San Tan Valley

In San Tan Valley in October, the precipitation amount is 20 mm (0.8 in) over the course of 2 days.

October Precipitation Trends in San Tan Valley

The chart displays monthly precipitation patterns in San Tan Valley, 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 San Tan Valley, October typically receives around 20 mm (0.8 inches) of precipitation spread over approximately 2 days.
JanFebMarAprMayJunJulAugSepOctNovDec334225233453429202130
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in San Tan Valley

In San Tan Valley in October humidity is 67%. With an average temperature of 24°C (75°F), this humidity feels like a warm and sticky embrace, making traveling a bit uncomfortable as you find yourself seeking shade and refreshing drinks more often.

October Average Humidity in San Tan Valley

This chart illustrates the average monthly humidity levels in San Tan Valley, 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 San Tan Valley is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%79%67%55%40%33%34%48%64%67%77%82%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in San Tan Valley

In San Tan Valley 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 San Tan Valley.

Maximum UV Index Levels in San Tan Valley for October

The chart shows the monthly maximum UV Index (UVI) for San Tan Valley 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 San Tan Valley typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111112111110854
Data source: San Tan Valley 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 San Tan Valley Compares to Other Months

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

This table compares monthly weather conditions in San Tan Valley, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)33 mm (1.3 inches)76%moderate
February Weather13°C (56°F)42 mm (1.7 inches)79%high
March Weather17°C (64°F)25 mm (1.0 inches)67%very high
April Weather23°C (73°F)2 mm (0.1 inches)55%extreme
May Weather27°C (80°F)3 mm (0.1 inches)40%extreme
June Weather33°C (91°F)3 mm (0.1 inches)33%extreme
July Weather34°C (93°F)45 mm (1.8 inches)34%extreme
August Weather33°C (92°F)34 mm (1.4 inches)48%extreme
September Weather30°C (87°F)29 mm (1.2 inches)64%very high
October Weather24°C (75°F)20 mm (0.8 inches)67%very high
November Weather18°C (65°F)21 mm (0.8 inches)77%moderate
December Weather12°C (55°F)30 mm (1.2 inches)82%moderate

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