May weather forecast and climate
Castleberry, AL

The last month of the spring, May, is another warm month in Castleberry, Alabama, with average temperature fluctuating between 85.3°F (29.6°C) and 63.1°F (17.3°C).

Temperature

In Castleberry, the average high-temperature in May marginally rises, from 77.9°F (25.5°C) in April, to a still moderately hot 85.3°F (29.6°C). In Castleberry, the average low-temperature is 63.1°F (17.3°C).

Heat index

In May, the average heat index is appraised at a tropical 94.6°F (34.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, clothing, wind). 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 Castleberry, the average relative humidity is 73%.

Rainfall

In May, the rain falls for 13.1 days. Throughout May, 3.11" (79mm) of precipitation is accumulated. In Castleberry, during the entire year, the rain falls for 176.5 days and collects up to 37.72" (958mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

In May, the average length of the day in Castleberry is 13.8h.

Sunshine

In May, the average sunshine is 10.3h.

UV index

In Castleberry, Alabama, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in May in Castleberry?

The average high-temperature, in May, in Castleberry, Alabama, is 85.3°F (29.6°C), while the average low-temperature is 63.1°F (17.3°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that factores the actual air temperature with the relative humidity, in May is appraised at 94.6°F (34.8°C).

What is the average humidity in May in Castleberry?

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

How many days does it rain in May in Castleberry?

In Castleberry, Alabama, in May, during 13.1 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

When it does not snow in Castleberry?

In Castleberry snow does not fall in April through November.

How many hours of daylight does Castleberry have in May?

In May, the average length of the day in Castleberry, Alabama, is 13.8h.

How many hours of sunshine does Castleberry have in May?

In May, the average sunshine is 10.3h.

How high is the UV index in May in Castleberry?

The average daily maximum UV index in May in Castleberry, Alabama, is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in May - Castleberry, AL
  • Average high temperature in May: 85.3°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).

  • Average low temperature in May: 63.1°F

Months with the highest average low temperature are July and August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).

Average pressure in May - Castleberry, AL
  • Average pressure in May: 30"

The month with the highest atmospheric pressure is January (30.16").
Months with the lowest atmospheric pressure are June and August (29.97").

Average wind speed in May - Castleberry, AL
  • Average wind speed in May: 5.3mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).

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

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

Average rainfall in May - Castleberry, AL
  • Average rainfall in May: 3.11"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (2.13").

Average rainfall days in May - Castleberry, AL
  • Average rainfall days in May: 13.1 days

The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (7.6 days).

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

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

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

The month with the highest number of snowfall days is January (0.5 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 - Castleberry, AL
  • Average daylight in May: 13.8h

The month with the longest days is June (Average daylight: 14.2h).
The month with the shortest days is December (Average daylight: 10.1h).

  • Average sunshine in May: 10.3h

The month with the most sunshine is June (Average sunshine: 10.6h).
The month with the least sunshine is December (Average sunshine: 5h).

Average sunshine days in May - Castleberry, AL
  • Average sunshine days in May: 15.9 days

The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).

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

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

Average cloud cover in May - Castleberry, AL
  • Average cloud cover in May: 35

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in May - Castleberry, AL
  • Average visibility in May: 5mi

Months with the highest visibility are June and October (6mi).
Months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).