May weather forecast and climate
Casa Grande, AZ

Weather in May

May, the last month of the spring, in Casa Grande, is a hot month, with average temperature fluctuating between 66.6°F (19.2°C) and 90.7°F (32.6°C).

Temperature

In May, the average high-temperature marginally rises, from a warm 82.9°F (28.3°C) in April, to a hot 90.7°F (32.6°C). In Casa Grande, Arizona, in May, the average low-temperature is 66.6°F (19.2°C).

Humidity

In Casa Grande, the average relative humidity is 19%.

Rainfall

In Casa Grande, during 2.2 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, there are 59.1 rainfall days, and 7.36" (187mm) of precipitation is accumulated.

Daylight

In May, the average length of the day is 13.9h.

Sunshine

In May, the average sunshine is 11.9h.

UV index

In Casa Grande, the average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 in May transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in May in Casa Grande?

In Casa Grande, in May, the average high-temperature is 90.7°F (32.6°C), and the average low-temperature is 66.6°F (19.2°C).

What is the average humidity in May in Casa Grande?

The average relative humidity in May is 19%.

How many days does it rain in May in Casa Grande?

In May, the rain falls for 2.2 days. Throughout May, 0.16" (4mm) of precipitation is accumulated.

How many hours of daylight does Casa Grande have in May?

The average length of the day in May in Casa Grande is 13.9h.

How long on average sun shines in May in Casa Grande?

The average sunshine in May in Casa Grande is 11.9h.

What is the UV index reading in May in Casa Grande?

In May, the average daily maximum UV index in Casa Grande, Arizona, is 7. A UV Index value of 6 to 7 symbolizes a high health threat from the exposure to the Sun's UV radiation.

Average temperature in May
Casa Grande, AZ

Average temperature in May - Casa Grande, AZ
  • Average high temperature in May: 90.7°F

The warmest month (with the highest average high temperature) is July (102°F).
The month with the lowest average high temperature is December (62.6°F).

  • Average low temperature in May: 66.6°F

The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

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Average pressure in May
Casa Grande, AZ

Average pressure in May - Casa Grande, AZ
  • Average pressure in May: 29.84"

The month with the highest atmospheric pressure is January (30.08").
The month with the lowest atmospheric pressure is June (29.81").

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Average wind speed in May
Casa Grande, AZ

Average wind speed in May - Casa Grande, AZ
  • Average wind speed in May: 7.1mph

The windiest months (with the highest average wind speed) are April and May (7.1mph).
The calmest months (with the lowest average wind speed) are January and December (4.9mph).

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Average humidity in May
Casa Grande, AZ

Average humidity in May - Casa Grande, AZ
  • Average humidity in May: 19%

The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (16%).

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Average rainfall in May
Casa Grande, AZ

Average rainfall in May - Casa Grande, AZ
  • Average rainfall in May: 0.16"

The wettest month (with the highest rainfall) is July (1.02").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in May
Casa Grande, AZ

Average rainfall days in May - Casa Grande, AZ
  • Average rainfall days in May: 2.2 days

The month with the highest number of rainy days is July (10.7 days).
The month with the least rainy days is June (1.8 days).

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Average daylight in May /
Average sunshine in May
Casa Grande, AZ

Average daylight in May / Average sunshine in May - Casa Grande, AZ
  • Average daylight in May: 13.9h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in May: 11.9h

The month with the most sunshine is June (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 6.9h).

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Average sunshine days in May
Casa Grande, AZ

Average sunshine days in May - Casa Grande, AZ
  • Average sunshine days in May: 28.4 days

The month with the most sunshine days is May (28.4 days).
The month with the least sunshine days is July (15.4 days).

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Average UV index in May
Casa Grande, AZ

Average UV index in May - Casa Grande, AZ
  • Average UV index in May: 7

Months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Casa Grande, AZ

Average cloud cover in May - Casa Grande, AZ
  • Average cloud cover in May: 8

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).

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Average visibility in May
Casa Grande, AZ

Average visibility in May - Casa Grande, AZ
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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