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March Weather in San Tan Valley, United States

Last updated: June 24, 2025

In March, the average temperature in San Tan Valley, United States is a pleasant 17°C (64°F), with fluctuations possible from a chilly 2°C (37°F) to a warm 34°C (94°F). Expect about 25 mm (1.0 in) of precipitation spread over 3 days, which adds a bit of charm to the scenery. The average humidity hovers around 67%, contributing to the overall ambiance of the region.

March Temperature in San Tan Valley

In March in San Tan Valley, the average temperature is 17°C (64°F), with maximums reaching 34°C (94°F) and minimums dropping to as low as 2°C (37°F). This makes it an ideal time for travelers who enjoy mild weather with a chance for warm days and cool nights.

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

The chart illustrates March 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, March typically has an average temperature of 17°C (64°F), with highs reaching up to 34°C (94°F) and lows dropping to around 2°C (37°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.

March Precipitation in San Tan Valley

In San Tan Valley in March, the precipitation amount is 25 mm (1.0 in) over the course of 3 days.

March Precipitation Trends in San Tan Valley

The chart displays monthly precipitation patterns in San Tan Valley, 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 San Tan Valley, March typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec334225233453429202130
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in San Tan Valley

In San Tan Valley in March humidity is 67%. With an average temperature of 17°C (64°F), this humidity feels like a cozy embrace, perfect for leisurely strolls, but it may leave you slightly sticky if you're active, so staying hydrated is essential for a comfortable experience.

March Average Humidity in San Tan Valley

This chart illustrates the average monthly humidity levels in San Tan Valley, 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 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 March generated using information from the Copernicus Climate Change Service.

March UV Index in San Tan Valley

In San Tan Valley in March, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in San Tan Valley.

Maximum UV Index Levels in San Tan Valley for March

The chart shows the monthly maximum UV Index (UVI) for San Tan Valley 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 San Tan Valley typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111112111110854
Data source: San Tan Valley 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 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 March’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 March’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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