May weather forecast
Clayton, AL

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Weather in May

The last month of the spring, May, is also a moderately hot month in Clayton, Alabama, with an average temperature fluctuating between 63.7°F (17.6°C) and 83.8°F (28.8°C).

Temperature

The onset of May brings a minor temperature shift, with the average high-temperature moving from 77°F (25°C) in April to a still warm 83.8°F (28.8°C). Throughout May, the average low-temperature dips to an enjoyable 63.7°F (17.6°C).

Heat index

The heat index value during May is evaluated at a hot 89.6°F (32°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values remain especially vital for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.

Humidity

In May, the average relative humidity is 70%.

Rainfall

In Clayton, during May, the rain falls for 13.2 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 153.5 rainfall days, and 24.41" (620mm) of precipitation is accumulated.

Snowfall

In Clayton, snow does not fall in April through December.

Daylight

In May, the average length of the day is 13h and 48min.
On the first day of the month, sunrise is at 5:55 am and sunset at 7:22 pm. On the last day of May, in Clayton, Alabama, sunrise is at 5:36 am and sunset at 7:42 pm CDT.

Sunshine

In May, the average sunshine is 10.5h.

UV index

In May, the average daily maximum UV index 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: In May, the maximum UV index of 6 suggests these recommendations:
Deter overexposure. Protecting against the sun's effects is essential. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during May?

In May, the average high-temperature and low-temperature are 83.8°F (28.8°C) and 63.7°F (17.6°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in May is evaluated at 89.6°F (32°C).

What is the average humidity in May?

In May, the average relative humidity is 70%.

How much does it rain in May?

In May, the rain falls for 13.2 days. Throughout May, 2.17" (55mm) of precipitation is accumulated.

When it does not snow?

In Clayton, snow does not fall in April through December.

How many hours of daylight does Clayton have in May?

In May, the average day length is 13h and 48min.

What time are sunrise and sunset in May?

On the first day of May, sunrise is at 5:55 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 7:42 pm CDT.

How many hours of sunshine does Clayton have in May?

In Clayton, the average sunshine duration in May is 10.5h.

What is the UV index reading in May?

In Clayton, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Clayton, AL

Average temperature in May - Clayton, AL
  • Average high temperature in May: 83.8°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.1°F).

  • Average low temperature in May: 63.7°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

Average pressure in May
Clayton, AL

Average pressure in May - Clayton, AL
  • Average pressure in May: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in May
Clayton, AL

Average wind speed in May - Clayton, AL
  • Average wind speed in May: 6mph

The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).

Average humidity in May
Clayton, AL

Average humidity in May - Clayton, AL
  • Average humidity in May: 70%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is October (69%).

Average rainfall in May
Clayton, AL

Average rainfall in May - Clayton, AL
  • Average rainfall in May: 2.17"

The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (1.42").

Average rainfall days in May
Clayton, AL

Average rainfall days in May - Clayton, AL
  • Average rainfall days in May: 13.2 days

The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in May
Clayton, AL

Average snowfall in May - Clayton, AL
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Clayton, AL

Average snowfall days in May - Clayton, AL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).

Average daylight in May /
Average sunshine in May
Clayton, AL

Average daylight in May / Average sunshine in May - Clayton, AL
  • 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: 10h and 3min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).

Average sunshine days in May
Clayton, AL

Average sunshine days in May - Clayton, AL
  • Average sunshine days in May: 16.3 days

The month with the most sunshine days is October (21.5 days).
The month with the least sunshine days is July (7.5 days).

Average UV index in May
Clayton, AL

Average UV index in May - Clayton, AL
  • Average UV index in May: 6

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in May
Clayton, AL

Average cloud cover in May - Clayton, AL
  • Average cloud cover in May: 30

The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in May
Clayton, AL

Average visibility in May - Clayton, AL
  • 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).

Clayton, Alabama, USA

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