May weather forecast
Sumiton, AL

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Weather in May

The last month of the spring, May, is a moderately hot month in Sumiton, Alabama, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 81°F (27.2°C).

Temperature

May's arrival brings a slight change in high-temperatures, adjusting from an agreeable 72.7°F (22.6°C) in April to a moderately hot 81°F (27.2°C). In May, Sumiton experiences a temperature dip to an average of 60.4°F (15.8°C) at night.

Heat index

The heat index value during May is estimated at a hot 86°F (30°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

The average relative humidity in May is 74%.

Rainfall

In Sumiton, in May, it is raining for 10.9 days, with typically 1.18" (30mm) of accumulated precipitation. Throughout the year, there are 128.4 rainfall days, and 14.17" (360mm) of precipitation is accumulated.

Snowfall

In Sumiton, snow does not fall in March through October.

Daylight

The average length of the day in May is 13h and 56min.
On the first day of May, sunrise is at 5:58 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:53 pm CDT.

Sunshine

In May, the average sunshine is 10h.

UV index

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 6 translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

Sumiton in May has an average high-temperature of 81°F (27.2°C) and an average low-temperature of 60.4°F (15.8°C). In May, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is estimated at 86°F (30°C).

What is the average humidity in May?

In Sumiton, the average relative humidity in May is 74%.

How much does it rain in May?

In May, the rain falls for 10.9 days. Throughout May, 1.18" (30mm) of precipitation is accumulated.

When it does not snow in Sumiton?

March through October are months without snowfall.

What is the average length of the day in May?

In Sumiton, the average day length in May is 13h and 56min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:53 pm CDT.

How many hours of sunshine does Sumiton have in May?

In May, the average sunshine duration is 10h.

How high is the UV index in May?

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Sumiton, AL

Average temperature in May - Sumiton, AL
  • Average high temperature in May: 81°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in May: 60.4°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (35.1°F).

Average pressure in May
Sumiton, AL

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

The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in May
Sumiton, AL

Average wind speed in May - Sumiton, AL
  • Average wind speed in May: 5.7mph

The windiest months (with the highest average wind speed) are February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in May
Sumiton, AL

Average humidity in May - Sumiton, AL
  • Average humidity in May: 74%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Sumiton, AL

Average rainfall in May - Sumiton, AL
  • Average rainfall in May: 1.18"

The wettest months (with the highest rainfall) are July and August (1.46").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in May
Sumiton, AL

Average rainfall days in May - Sumiton, AL
  • Average rainfall days in May: 10.9 days

The month with the highest number of rainy days is July (15.8 days).
The months with the least rainy days are October and November (7.1 days).

Average snowfall in May
Sumiton, AL

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

The month with the highest snowfall is January (0.28").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in May
Sumiton, AL

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

The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Sumiton, AL
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 10h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in May
Sumiton, AL

Average sunshine days in May - Sumiton, AL
  • Average sunshine days in May: 17.4 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (11.5 days).

Average UV index in May
Sumiton, AL

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

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

Average cloud cover in May
Sumiton, AL

Average cloud cover in May - Sumiton, AL
  • Average cloud cover in May: 33

The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 29).

Average visibility in May
Sumiton, AL

Average visibility in May - Sumiton, 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).

Sumiton, Alabama, USA

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