May weather forecast
South Tucson, AZ

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Weather in May

The last month of the spring, May, is another warm month in South Tucson, Arizona, with an average temperature ranging between max 85.5°F (29.7°C) and min 60.4°F (15.8°C).

Temperature

The start of May is characterized by a subtle increase in the average high-temperature, transitioning from 78.3°F (25.7°C) in April to a still warm 85.5°F (29.7°C). South Tucson logs a notable disparity from the daily highs during May, as the nighttime temperature lowers to an average of 60.4°F (15.8°C).

Humidity

The average relative humidity in May is 21%.

Rainfall

May is the month with the least rainfall. Rain falls for 1.3 days and accumulates 0.08" (2mm) of precipitation.

Snowfall

February through December are months without snowfall in South Tucson, Arizona.

Daylight

In May, the average length of the day in South Tucson is 13h and 49min.
On the first day of May, sunrise is at 5:36 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 7:25 pm MST.

Sunshine

In May, the average sunshine is 12h.

UV index

The average daily maximum UV index in May is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: The maximum UV index of 7 during May translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

How hot is it in South Tucson in May?

In South Tucson, in May, the average high-temperature is 85.5°F (29.7°C), and the average low-temperature is 60.4°F (15.8°C).

What is the average humidity in May in South Tucson?

In May, the average relative humidity is 21%.

What is the driest month in South Tucson?

The month with the least rainfall in South Tucson is May, when the rain falls for 1.3 days and typically collects 0.08" (2mm) of precipitation.

How many days does it rain in May in South Tucson?

In South Tucson, Arizona, in May, during 1.3 rainfall days, 0.08" (2mm) of precipitation is typically accumulated.

When it does not snow in South Tucson?

In South Tucson, snow does not fall in February through December.

How many hours of daylight does South Tucson have in May?

The average day length in May in South Tucson is 13h and 49min.

When is the sunrise / sunset in May in South Tucson?

In May, on the first day of the month, sunrise is at 5:36 am and sunset at 7:05 pm. On the last day of the month, in South Tucson, Arizona, sunrise is at 5:18 am and sunset at 7:25 pm MST.

How many hours of sunshine does South Tucson have in May?

In May, the average sunshine duration in South Tucson, Arizona, is 12h.

How high is the UV index in May in South Tucson?

In South Tucson, the average daily maximum UV index in May is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.
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
South Tucson, AZ

Average temperature in May - South Tucson, AZ
  • Average high temperature in May: 85.5°F

The warmest month (with the highest average high temperature) is June (96.6°F).
The month with the lowest average high temperature is December (60.8°F).

  • Average low temperature in May: 60.4°F

The month with the highest average low temperature is July (77°F).
The coldest months (with the lowest average low temperature) are January and December (43°F).

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Average pressure in May
South Tucson, AZ

Average pressure in May - South Tucson, AZ
  • Average pressure in May: 29.86"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in May
South Tucson, AZ

Average wind speed in May - South Tucson, AZ
  • Average wind speed in May: 8.1mph

The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in May
South Tucson, AZ

Average humidity in May - South Tucson, AZ
  • Average humidity in May: 21%

The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (19%).

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Average rainfall in May
South Tucson, AZ

Average rainfall in May - South Tucson, AZ
  • Average rainfall in May: 0.08"

The wettest month (with the highest rainfall) is July (1.42").
The driest month (with the least rainfall) is May (0.08").

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Average rainfall days in May
South Tucson, AZ

Average rainfall days in May - South Tucson, AZ
  • Average rainfall days in May: 1.3 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is May (1.3 days).

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Average snowfall in May
South Tucson, AZ

Average snowfall in May - South Tucson, 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
South Tucson, AZ

Average snowfall days in May - South Tucson, AZ
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in May /
Average sunshine in May
South Tucson, AZ

Average daylight in May / Average sunshine in May - South Tucson, 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: 12h and 0min

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
South Tucson, AZ

Average sunshine days in May - South Tucson, 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 (13.3 days).

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Average UV index in May
South Tucson, AZ

Average UV index in May - South Tucson, AZ
  • Average UV index in May: 7

The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in May
South Tucson, AZ

Average cloud cover in May - South Tucson, AZ
  • Average cloud cover in May: 7

The month with the most cloud cover is 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
South Tucson, AZ

Average visibility in May - South Tucson, 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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South Tucson, Arizona, USA

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