May weather forecast and climate
Cahaba Heights, AL

The last month of the spring, May, is another warm month in Cahaba Heights, Alabama, with average temperature fluctuating between 81.9°F (27.7°C) and 61.2°F (16.2°C).

Temperature

In May, the average high-temperature marginally rises, from a warm 73.9°F (23.3°C) in April, to a still moderately hot 81.9°F (27.7°C). The average low-temperature, in Cahaba Heights, is 61.2°F (16.2°C).

Heat index

In May, the average heat index is calculated to a hot 86.9°F (30.5°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like metabolic differences, wind, clothing, and activity influence one's weather impression. 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 are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Cahaba Heights, the average relative humidity is 73%.

Rainfall

In Cahaba Heights, during 12.8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Cahaba Heights, during the entire year, the rain falls for 147 days and collects up to 19.06" (484mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The average length of the day in May is 13.9h.

Sunshine

The average sunshine in Cahaba Heights is 10.1h.

UV index

In Cahaba Heights, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in May in Cahaba Heights?

The average high-temperature, in May, is 81.9°F (27.7°C), while the average low-temperature is 61.2°F (16.2°C). In May, the average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines relative humidity and air temperature, is evaluated at 86.9°F (30.5°C).

What is the average humidity in May in Cahaba Heights?

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

How many days does it rain in May in Cahaba Heights?

In Cahaba Heights, Alabama, in May, during 12.8 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow in Cahaba Heights?

In Cahaba Heights, Alabama, snow does not fall in April through November.

How many hours of daylight does Cahaba Heights have in May?

In Cahaba Heights, the average length of the day in May is 13.9h.

How long on average sun shines in May in Cahaba Heights?

In May, the average sunshine in Cahaba Heights, Alabama, is 10.1h.

How high is the UV index in May in Cahaba Heights?

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to the Sun's UV rays.
Average temperature in May - Cahaba Heights, AL
  • Average high temperature in May: 81.9°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (51.3°F).

  • Average low temperature in May: 61.2°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (36°F).

Average pressure in May - Cahaba Heights, AL
  • Average pressure in May: 30.01"

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

Average wind speed in May - Cahaba Heights, 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 - Cahaba Heights, AL
  • Average humidity in May: 73%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in May - Cahaba Heights, AL
  • Average rainfall in May: 1.57"

The wettest month (with the highest rainfall) is August (2.24").
The driest month (with the least rainfall) is October (1.02").

Average rainfall days in May - Cahaba Heights, AL
  • Average rainfall days in May: 12.8 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (7.3 days).

Average snowfall in May - Cahaba Heights, AL
  • Average snowfall in May: 0"

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

Average snowfall days in May - Cahaba Heights, AL
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (1 days).
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 - Cahaba Heights, AL
  • Average daylight in May: 13.9h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in May: 10.1h

Months with the most sunshine are June and July (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 4.8h).

Average sunshine days in May - Cahaba Heights, AL
  • Average sunshine days in May: 16.3 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (9.4 days).

Average UV index in May - Cahaba Heights, AL
  • Average UV index in May: 6

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 - Cahaba Heights, AL
  • Average cloud cover in May: 32

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

Average visibility in May - Cahaba Heights, AL
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).