May weather forecast and climate
Poston, AZ

Weather in May

The last month of the spring, May, is a tropical month in Poston, Arizona, with average temperature ranging between min 68.4°F (20.2°C) and max 90.1°F (32.3°C).

Temperature

In Poston, the average high-temperature in May marginally rises, from a moderately hot 82.8°F (28.2°C) in April, to a hot 90.1°F (32.3°C). The average low-temperature, is 68.4°F (20.2°C).

Humidity

In Poston, the average relative humidity is 19%.

Rainfall

May and June are months with the least rain in Poston when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.

Daylight

The average length of the day in Poston is 13.9h.

Sunshine

In May, the average sunshine in Poston, Arizona, is 11.9h.

UV index

The average daily maximum UV index in Poston is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation for average individuals.
Note: In May, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in May in Poston?

In Poston, in May, the average high-temperature is 90.1°F (32.3°C), and the average low-temperature is 68.4°F (20.2°C).

What is the average humidity in May in Poston?

In May, the average relative humidity in Poston, Arizona, is 19%.

How much does it rain in Poston in May?

In Poston, during May, the rain falls for 1.2 days and regularly aggregates up to 0.04" (1mm) of precipitation.

What is the driest month in Poston?

May and June are months with the least rain in Poston, Arizona, when the rain falls for 1.2 days and typically aggregates up to 0.04" (1mm) of rain.

What is the average length of the day in May in Poston?

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

How long on average sun shines in May in Poston?

The average sunshine in May is 11.9h.

What is the UV index intensity in May in Poston?

In Poston, Arizona, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation.

Average temperature in May
Poston, AZ

Average temperature in May - Poston, AZ
  • Average high temperature in May: 90.1°F

The warmest month (with the highest average high temperature) is July (104.2°F).
The month with the lowest average high temperature is December (61.2°F).

  • Average low temperature in May: 68.4°F

The month with the highest average low temperature is August (85.6°F).
The coldest month (with the lowest average low temperature) is December (47.1°F).

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Average pressure in May
Poston, AZ

Average pressure in May - Poston, AZ
  • Average pressure in May: 29.8"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.74").

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Average wind speed in May
Poston, AZ

Average wind speed in May - Poston, AZ
  • Average wind speed in May: 8.4mph

The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is November (5.8mph).

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Average humidity in May
Poston, AZ

Average humidity in May - Poston, AZ
  • Average humidity in May: 19%

Months with the highest relative humidity are January and December (39%).
The month with the lowest relative humidity is June (15%).

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Average rainfall in May
Poston, AZ

Average rainfall in May - Poston, AZ
  • Average rainfall in May: 0.04"

The wettest month (with the highest rainfall) is July (0.59").
The driest months (with the least rainfall) are May and June (0.04").

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Average rainfall days in May
Poston, AZ

Average rainfall days in May - Poston, AZ
  • Average rainfall days in May: 1.2 days

The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is May (1.2 days).

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Average daylight in May /
Average sunshine in May
Poston, AZ

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

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in May: 11.9h

The month with the most sunshine is June (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 7h).

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Average sunshine days in May
Poston, AZ

Average sunshine days in May - Poston, AZ
  • Average sunshine days in May: 29.3 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (20.2 days).

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Average UV index in May
Poston, AZ

Average UV index in May - Poston, AZ
  • Average UV index in May: 7

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in May
Poston, AZ

Average cloud cover in May - Poston, AZ
  • Average cloud cover in May: 8

The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in May
Poston, AZ

Average visibility in May - Poston, 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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