May weather forecast
Horn, AZ

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Weather in May

The last month of the spring, May, is a tropical month in Horn, Arizona, with temperature in the range of an average high of 91.6°F (33.1°C) and an average low of 68.5°F (20.3°C).

Temperature

A gentle upsurge in temperatures occurs as April gives way to May, with average highs shifting from a warm 84°F (28.9°C) to a tropical 91.6°F (33.1°C). In May, the recorded average low-temperature, of 68.5°F (20.3°C), exhibits a significant fall from the daytime highs.

Humidity

In Horn, the average relative humidity in May is 22%.

Rainfall

May is the month with the least rainfall. Rain falls for 1 days and accumulates 0.04" (1mm) of precipitation.

Daylight

In Horn, the average length of the day in May is 13h and 52min.
On the first day of the month, sunrise is at 5:45 am and sunset at 7:16 pm. On the last day of May, in Horn, sunrise is at 5:26 am and sunset at 7:37 pm MST.

Sunshine

In Horn, the average sunshine in May is 12h.

UV index

The average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: In May, a regular UV index of 7 translates into these guidelines:
Deter overexposure. Protecting against the sun's effects is essential. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in May?

In May, the average high-temperature and low-temperature are 91.6°F (33.1°C) and 68.5°F (20.3°C) respectively.

What is the average humidity in May?

The average relative humidity in May is 22%.

What is the driest month?

May is the month with the least rainfall. Rain falls for 1 days and accumulates 0.04" (1mm) of precipitation.

How many days does it rain in May?

In May, the rain falls for 1 days. Throughout May, 0.04" (1mm) of precipitation is accumulated.

How many hours of daylight does Horn have in May?

In Horn, the average day length in May is 13h and 52min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:45 am and sunset at 7:16 pm. On the last day of the month, in Horn, sunrise is at 5:26 am and sunset at 7:37 pm MST.

How long on average sun shines in May?

In May, the average sunshine duration is 12h.

What is the UV index reading in May?

The average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Horn, AZ

Average temperature in May - Horn, AZ
  • Average high temperature in May: 91.6°F

The warmest month (with the highest average high temperature) is July (103.8°F).
The month with the lowest average high temperature is December (64.8°F).

  • Average low temperature in May: 68.5°F

The month with the highest average low temperature is August (86.2°F).
The coldest months (with the lowest average low temperature) are January and December (49.6°F).

Average pressure in May
Horn, AZ

Average pressure in May - Horn, AZ
  • Average pressure in May: 29.79"Hg

The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.73"Hg).

Average wind speed in May
Horn, AZ

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

The windiest month (with the highest average wind speed) is July (8.6mph).
The calmest month (with the lowest average wind speed) is December (5.6mph).

Average humidity in May
Horn, AZ

Average humidity in May - Horn, AZ
  • Average humidity in May: 22%

The month with the highest relative humidity is December (40%).
The month with the lowest relative humidity is June (21%).

Average rainfall in May
Horn, AZ

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

The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").

Average rainfall days in May
Horn, AZ

Average rainfall days in May - Horn, AZ
  • Average rainfall days in May: 1 days

The month with the highest number of rainy days is July (8.2 days).
The month with the least rainy days is May (1 days).

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 12h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

Average sunshine days in May
Horn, AZ

Average sunshine days in May - Horn, AZ
  • Average sunshine days in May: 29.7 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).

Average UV index in May
Horn, AZ

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

The months with the highest UV index are June, July and August (UV index 8).
The months with the lowest UV index are November and December (UV index 4).

Average cloud cover in May
Horn, AZ

Average cloud cover in May - Horn, AZ
  • Average cloud cover in May: 7

The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 5).

Average visibility in May
Horn, AZ

Average visibility in May - Horn, 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).

Horn, Arizona, USA

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