May weather forecast
Sun Valley, AZ

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Weather in May

The last month of the spring, May, is a warm month in Sun Valley, Arizona, with an average temperature fluctuating between 52.7°F (11.5°C) and 76.8°F (24.9°C).

Temperature

The start of May signals a slight increase in the average high-temperature, moving from a pleasant 68.5°F (20.3°C) in April to a moderately hot 76.8°F (24.9°C). Throughout May, Sun Valley acknowledges a distinct difference between its daytime highs and the steady low average of 52.7°F (11.5°C).

Humidity

In May, the average relative humidity is 24%.

Rainfall

In Sun Valley, in May, during 4.7 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. In Sun Valley, during the entire year, the rain falls for 74.3 days and collects up to 7.2" (183mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In May, the average length of the day in Sun Valley is 14h and 1min.
On the first day of the month, sunrise is at 5:28 am and sunset at 7:05 pm. On the last day of May, sunrise is at 5:07 am and sunset at 7:28 pm MST.

Sunshine

The average sunshine in May is 11.7h.

UV index

In Sun Valley, Arizona, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A maximum UV index of 6 in May translates into the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
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Frequently asked questions

What is the temperature in May in Sun Valley?

In May, in Sun Valley, the average high-temperature is 76.8°F (24.9°C), and the average low-temperature is 52.7°F (11.5°C).

What is the average humidity in May in Sun Valley?

The average relative humidity in May in Sun Valley is 24%.

How much does it rain in Sun Valley in May?

In Sun Valley, during May, the rain falls for 4.7 days and regularly aggregates up to 0.31" (8mm) of precipitation.

When it does not snow in Sun Valley?

May through October are months without snowfall in Sun Valley.

Does it snow in Sun Valley in May?

In May, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Sun Valley have in May?

In Sun Valley, Arizona, the average day length in May is 14h and 1min.

When are sunrise and sunset in May in Sun Valley?

On the first day of May in Sun Valley, sunrise is at 5:28 am and sunset at 7:05 pm. On the last day of the month, sunrise is at 5:07 am and sunset at 7:28 pm MST.

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

The average sunshine duration in May is 11.7h.

How high is the UV index in May in Sun Valley?

The average daily maximum UV index in May is 6. A UV Index 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
Sun Valley, AZ

Average temperature in May - Sun Valley, AZ
  • Average high temperature in May: 76.8°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (46.8°F).

  • Average low temperature in May: 52.7°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in May
Sun Valley, AZ

Average pressure in May - Sun Valley, AZ
  • Average pressure in May: 29.88"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

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Average wind speed in May
Sun Valley, AZ

Average wind speed in May - Sun Valley, AZ
  • Average wind speed in May: 10.6mph

The windiest months (with the highest average wind speed) are April and May (10.6mph).
The calmest month (with the lowest average wind speed) is January (6.1mph).

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Average humidity in May
Sun Valley, AZ

Average humidity in May - Sun Valley, AZ
  • Average humidity in May: 24%

The month with the highest relative humidity is January (59%).
The month with the lowest relative humidity is June (18%).

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Average rainfall in May
Sun Valley, AZ

Average rainfall in May - Sun Valley, AZ
  • Average rainfall in May: 0.31"

The wettest month (with the highest rainfall) is July (1.1").
The driest month (with the least rainfall) is June (0.16").

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Average rainfall days in May
Sun Valley, AZ

Average rainfall days in May - Sun Valley, AZ
  • Average rainfall days in May: 4.7 days

The month with the highest number of rainy days is July (13.3 days).
The months with the least rainy days are June and November (3.4 days).

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Average snowfall in May
Sun Valley, AZ

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

The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in May
Sun Valley, AZ

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

The month with the highest number of snowfall days is December (3.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Sun Valley, AZ
  • Average daylight in May: 14h and 0min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in May: 11h and 4min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in May
Sun Valley, AZ

Average sunshine days in May - Sun Valley, AZ
  • Average sunshine days in May: 25.3 days

The months with the most sunshine days are May, June and November (25.3 days).
The month with the least sunshine days is July (12.8 days).

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Average UV index in May
Sun Valley, AZ

Average UV index in May - Sun Valley, AZ
  • Average UV index in May: 6

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in May
Sun Valley, AZ

Average cloud cover in May - Sun Valley, AZ
  • Average cloud cover in May: 12

The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 9).

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Average visibility in May
Sun Valley, AZ

Average visibility in May - Sun 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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Sun Valley, Arizona, USA

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