May weather forecast
Green Valley, AZ

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Weather in May

The last month of the spring, May, is another warm month in Green Valley, Arizona, with an average temperature ranging between min 59.5°F (15.3°C) and max 85.1°F (29.5°C).

Temperature

In May, the meteorological conditions subtly change with the average high-temperature edging from 77.7°F (25.4°C) in April to a still moderately hot 85.1°F (29.5°C). Despite the stark contrast with daytime temperatures, Green Valley's May nights average at a mild 59.5°F (15.3°C).

Humidity

May and June, with an average relative humidity of 21%, are the least humid months.

Rainfall

The months with the least rainfall are April and May Rain falls for 1.4 days and accumulates 0.12" (3mm) of rain.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in May is 13h and 48min.
On the first day of May, sunrise is at 5:37 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 7:24 pm MST.

Sunshine

In May, the average sunshine is 11.9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In May, a daily UV index of 7 turns into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
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Frequently asked questions

How hot does it get in Green Valley in May?

In May, in Green Valley, the average high-temperature is 85.1°F (29.5°C), and the average low-temperature is 59.5°F (15.3°C).

What is the least humid month in Green Valley?

The months with the lowest humidity in Green Valley, Arizona, are May and June, with an average relative humidity of 21%.

What is the average humidity in May in Green Valley?

The average relative humidity in May in Green Valley, Arizona, is 21%.

What is the driest month in Green Valley?

The months with the least rainfall are April and May Rain falls for 1.4 days and accumulates 0.12" (3mm) of rain.

How much does it rain in Green Valley in May?

In May, in Green Valley, the rain falls for 1.4 days. Throughout May, 0.12" (3mm) of precipitation is accumulated.

When it does not snow in Green Valley?

In Green Valley, Arizona, snow does not fall in February through December.

What is the average length of the day in May in Green Valley?

In Green Valley, Arizona, the average day length in May is 13h and 48min.

When are sunrise and sunset in May in Green Valley?

On the first day of May, sunrise is at 5:37 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 7:24 pm MST.

How many hours of sunshine does Green Valley have in May?

The average sunshine duration in May in Green Valley, Arizona, is 11.9h.

What is the month with the highest UV index in Green Valley?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

What is the UV index reading in May in Green Valley?

In Green Valley, the average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Green Valley, AZ

Average temperature in May - Green Valley, AZ
  • Average high temperature in May: 85.1°F

The warmest month (with the highest average high temperature) is June (95.5°F).
The month with the lowest average high temperature is December (61.7°F).

  • Average low temperature in May: 59.5°F

The month with the highest average low temperature is July (75.4°F).
The coldest month (with the lowest average low temperature) is December (43°F).

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Average pressure in May
Green Valley, AZ

Average pressure in May - Green Valley, AZ
  • Average pressure in May: 29.85"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).

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Average wind speed in May
Green Valley, AZ

Average wind speed in May - Green Valley, AZ
  • Average wind speed in May: 8.8mph

The windiest months (with the highest average wind speed) are April and May (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

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Average humidity in May
Green Valley, AZ

Average humidity in May - Green Valley, AZ
  • Average humidity in May: 21%

The month with the highest relative humidity is December (44%).
The months with the lowest relative humidity are May and June (21%).

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Average rainfall in May
Green Valley, AZ

Average rainfall in May - Green Valley, AZ
  • Average rainfall in May: 0.12"

The wettest months (with the highest rainfall) are July and August (1.3").
The driest months (with the least rainfall) are April and May (0.12").

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Average rainfall days in May
Green Valley, AZ

Average rainfall days in May - Green Valley, AZ
  • Average rainfall days in May: 1.4 days

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is May (1.4 days).

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Average snowfall in May
Green Valley, AZ

Average snowfall in May - Green Valley, AZ
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in May
Green Valley, AZ

Average snowfall days in May - Green Valley, AZ
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January, September and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).

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Average daylight in May /
Average sunshine in May
Green Valley, AZ

Average daylight in May / Average sunshine in May - Green Valley, AZ
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 11h and 5min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in May
Green Valley, AZ

Average sunshine days in May - Green Valley, 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 (12.3 days).

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Average UV index in May
Green Valley, AZ

Average UV index in May - Green Valley, AZ
  • Average UV index in May: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in May
Green Valley, AZ

Average cloud cover in May - Green Valley, AZ
  • Average cloud cover in May: 7

The months with the most cloud cover are July and December (Cloud cover 19).
The months with the least cloud cover are May and June (Cloud cover 7).

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Average visibility in May
Green Valley, AZ

Average visibility in May - Green Valley, AZ
  • Average visibility in May: 6mi

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

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Green Valley, Arizona, USA

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