May weather forecast
Alabaster, AL

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Weather in May

May ushers in the true start of the warmer season in Alabaster. An increase in warmth is noticeable as the highest temperature starts to hover around 81.5°F (27.5°C), initiating summertime. Decorative clouds adorn the Alabaster skies often during this month. People are drawn into outdoor activities by the lengthening, sunny days, creating a buoyant and festive atmosphere. As the UV index inches further up, it signals the need for protection against the intensifying sun.

Temperature

May's onset in Alabaster brings a subtle temperature rise, moving from a moderately hot 74.1°F (23.4°C) in April to a still warm 81.5°F (27.5°C). During May nights, Alabaster records an average temperature of 60.8°F (16°C).

Heat index

The heat index in May is computed to be a tropical 86°F (30°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.

Humidity

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

Rainfall

In Alabaster, Alabama, during May, the rain falls for 12.4 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Alabaster, there are 148.8 rainfall days, and 23.11" (587mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall in Alabaster.

Daylight

In Alabaster, the average length of the day in May is 13h and 53min.
On the first day of May in Alabaster, sunrise is at 5:58 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 7:51 pm CDT.

Sunshine

In May, the average sunshine is 10.2h.

UV index

The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 6 during May morphs into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are May temperatures in Alabaster?

The high-temperature, in May, in Alabaster, records 81.5°F (27.5°C), while the low-temperature is 60.8°F (16°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in May is computed to be 86°F (30°C).

What is the average humidity in May in Alabaster?

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

How much does it rain in Alabaster in May?

In Alabaster, Alabama, during May, the rain falls for 12.4 days and regularly aggregates up to 1.77" (45mm) of precipitation.

When it does not snow in Alabaster?

March through November are months without snowfall.

What is the average length of the day in May in Alabaster?

The average day length in May in Alabaster is 13h and 53min.

When is the sunrise / sunset in May in Alabaster?

In May, on the first day of the month, sunrise is at 5:58 am and sunset at 7:30 pm. On the last day of the month, in Alabaster, sunrise is at 5:38 am and sunset at 7:51 pm CDT.

How many hours of sunshine does Alabaster have in May?

In May, the average sunshine duration in Alabaster is 10.2h.

What is the UV index reading in May in Alabaster?

In Alabaster, Alabama, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Alabaster, AL

Average temperature in May - Alabaster, AL
  • Average high temperature in May: 81.5°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in May: 60.8°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.3°F).

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Average pressure in May
Alabaster, AL

Average pressure in May - Alabaster, 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).

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Average wind speed in May
Alabaster, AL

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

The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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Average humidity in May
Alabaster, AL

Average humidity in May - Alabaster, 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%).

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Average rainfall in May
Alabaster, AL

Average rainfall in May - Alabaster, AL
  • Average rainfall in May: 1.77"

The wettest month (with the highest rainfall) is August (2.52").
The driest months (with the least rainfall) are September and October (1.26").

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Average rainfall days in May
Alabaster, AL

Average rainfall days in May - Alabaster, AL
  • Average rainfall days in May: 12.4 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (6.7 days).

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Average snowfall in May
Alabaster, AL

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

The month with the highest snowfall is December (0.47").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Alabaster, AL

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

The month with the highest number of snowfall days is January (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in May / Average sunshine in May - Alabaster, AL
  • 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: 10h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in May
Alabaster, AL

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

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is July (9 days).

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Average UV index in May
Alabaster, AL

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

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).

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Average cloud cover in May
Alabaster, AL

Average cloud cover in May - Alabaster, AL
  • Average cloud cover in May: 32

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in May
Alabaster, AL

Average visibility in May - Alabaster, 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).

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Alabaster, Alabama, USA

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