May weather forecast
Birmingham, AL

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The colorful evening sky in Birmingham City, Alabama
The colorful evening sky in Birmingham City, Alabama

Weather in May

May weather in Birmingham, Alabama exhibits a marked departure from spring, leaning heavily towards summer conditions. Temperatures continue their ascending path, reaching a high of 81.3°F (27.4°C). True to the season, relative humidity maintains consistency despite the rise in temperature. Notably, sunshine hours soar, imparting a bright and sunny character to most days. Even with considerable wind presence, overall weather conditions remain warm and comfortable.

Temperature

May's arrival coincides with a subtle temperature rise, moving from April's 73.4°F (23°C) to a still warm 81.3°F (27.4°C). Birmingham temperatures generally rest at a low of 61°F (16.1°C) during the May nights.

Heat index

The heat index value for May is evaluated at a tropical 86°F (30°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a composite of temperature and humidity figures to convey how warm it feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In Birmingham, the average relative humidity in May is 73%.

Rainfall

In Birmingham, in May, it is raining for 12.6 days, with typically 1.54" (39mm) of accumulated precipitation. Throughout the year, there are 143.1 rainfall days, and 18.58" (472mm) of precipitation is accumulated.

Snowfall

In Birmingham, snow does not fall in April through October.

Daylight

In May, the average length of the day is 13h and 55min.
On the first day of May, sunrise is at 5:57 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 Birmingham, the average sunshine in May is 10h.

UV index

In Birmingham, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In May, the UV index of 6 transforms into the following advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

What are the temperatures in May?

The average high-temperature and low-temperature during May are 81.3°F (27.4°C) and 61°F (16.1°C) respectively. In May, the average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the average humidity in May?

In May, the average relative humidity is 73%.

How much does it rain in Birmingham in May?

In Birmingham, in May, it is raining for 12.6 days, with typically 1.54" (39mm) of accumulated precipitation.

When it does not snow?

In Birmingham, snow does not fall in April through October.

What is the average length of the day in May?

In Birmingham, the average day length in May is 13h and 55min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:57 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.

How long on average sun shines in May?

In Birmingham, the average sunshine duration in May is 10h.

How high is the UV index in May?

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

Average temperature in May - Birmingham, AL
  • Average high temperature in May: 81.3°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in May: 61°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in May
Birmingham, AL

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

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

Average wind speed in May
Birmingham, AL

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

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in May
Birmingham, AL

Average humidity in May - Birmingham, AL
  • Average humidity in May: 73%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in May
Birmingham, AL

Average rainfall in May - Birmingham, AL
  • Average rainfall in May: 1.54"

The wettest month (with the highest rainfall) is June (1.97").
The driest month (with the least rainfall) is November (1.02").

Average rainfall days in May
Birmingham, AL

Average rainfall days in May - Birmingham, AL
  • Average rainfall days in May: 12.6 days

The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (7.9 days).

Average snowfall in May
Birmingham, AL

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

The month with the highest snowfall is January (0.12").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Birmingham, AL

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

The months with the highest number of snowfall days are January and February (0.8 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
Birmingham, AL

Average daylight in May / Average sunshine in May - Birmingham, 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 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in May
Birmingham, AL

Average sunshine days in May - Birmingham, AL
  • Average sunshine days in May: 16.4 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (11.1 days).

Average UV index in May
Birmingham, AL

Average UV index in May - Birmingham, 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
Birmingham, AL

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

The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 30).

Average visibility in May
Birmingham, AL

Average visibility in May - Birmingham, 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).

Birmingham, Alabama, USA

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