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March Weather in Casa Grande, United States

Last updated: June 24, 2025

In March, the average temperature in Casa Grande, United States hovers around 18°C (65°F). Daytime highs can soar to 36°C (96°F), while the cool nights can dip as low as 3°C (37°F). Despite the warmth, expect some rain with a precipitation amount of 19 mm (0.7 in) over a span of 3 days. The average humidity stands at a comfortable 67%, adding a touch of moisture to the air.

March Temperature in Casa Grande

In March in Casa Grande, the average temperature is 18°C (65°F). Maximum temperatures can reach as high as 36°C (96°F), while minimum temperatures can drop to 3°C (37°F). Therefore, visitors should be prepared for a wide range of temperatures during their travels.

March Weather in Casa Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Casa Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casa Grande, March typically has an average temperature of 18°C (65°F), with highs reaching up to 36°C (96°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec545765748191949388766555
Data source: Temperature data for Casa Grande 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 Casa Grande

In Casa Grande in March, the precipitation amount is 19 mm (0.7 in) over a period of 3 days.

March Precipitation Trends in Casa Grande

The chart displays monthly precipitation patterns in Casa Grande, 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 Casa Grande, March typically receives around 19 mm (0.7 inches) of precipitation spread over approximately 3 days.
JanFebMarAprMayJunJulAugSepOctNovDec202919225383621151324
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Casa Grande

In Casa Grande in March humidity is 67%. With an average temperature of 18°C (65°F), this humidity feels like a mild blanket wrapping around you, making outdoor activities feel pleasantly refreshing, yet you may find yourself reaching for a drink more often to stay hydrated while exploring the sights.

March Average Humidity in Casa Grande

This chart illustrates the average monthly humidity levels in Casa Grande, 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 Casa Grande 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 Casa Grande

In Casa Grande 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 Casa Grande.

Maximum UV Index Levels in Casa Grande for March

The chart shows the monthly maximum UV Index (UVI) for Casa Grande 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 Casa Grande typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec469111112111110854
Data source: Casa Grande 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 Casa Grande Compares to Other Months

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

This table compares monthly weather conditions in Casa Grande, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (55°F)20 mm (0.8 inches)76%moderate
February Weather14°C (58°F)29 mm (1.1 inches)79%high
March Weather18°C (65°F)19 mm (0.7 inches)67%very high
April Weather24°C (75°F)1 mm (0.1 inches)55%extreme
May Weather27°C (81°F)1 mm (0.1 inches)40%extreme
June Weather33°C (92°F)5 mm (0.2 inches)33%extreme
July Weather34°C (94°F)38 mm (1.5 inches)34%extreme
August Weather34°C (94°F)36 mm (1.4 inches)48%extreme
September Weather31°C (88°F)21 mm (0.8 inches)64%very high
October Weather24°C (76°F)15 mm (0.6 inches)67%very high
November Weather19°C (66°F)13 mm (0.5 inches)77%moderate
December Weather13°C (55°F)24 mm (0.9 inches)82%moderate

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