May weather forecast and climate
Erin, AL

May, the last month of the spring, in Erin, is a warm month, with temperature in the range of an average low of 59.7°F (15.4°C) and an average high of 81°F (27.2°C).

Temperature

In Erin, the average high-temperature slightly increases, from a pleasant 72.9°F (22.7°C) in April, to a warm 81°F (27.2°C). In Erin, in May, the average low-temperature is 59.7°F (15.4°C).

Heat index

The average heat index in May is calculated to 85.3°F (29.6°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'felt air temperature', or 'feels like', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, clothing, pregnancy, and differences in body mass, height, and shape affect individual temperature impact. 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 particularly important for children. 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 Erin, the average relative humidity is 74%.

Rainfall

In Erin, Alabama, during 16.4 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. Throughout the year, in Erin, there are 184.6 rainfall days, and 42.6" (1082mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Erin.

Daylight

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

Sunshine

In May, the average sunshine in Erin is 10.2h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 6 in May interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Erin?

In May, in Erin, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 59.7°F (15.4°C). The average heat index (a.k.a. 'feels like', 'real feel'), that combines both air temperature and relative humidity, in May is estimated at 85.3°F (29.6°C).

What is the average humidity in May in Erin?

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

How much does it rain in Erin in May?

In Erin, Alabama, in May, during 16.4 rainfall days, 3.23" (82mm) of precipitation is typically accumulated.

When it does not snow in Erin?

In Erin snow does not fall in April through November.

How many hours of daylight does Erin have in May?

In May, the average length of the day in Erin, Alabama, is 13.9h.

How many hours of sunshine does Erin have in May?

The average sunshine in May in Erin, Alabama, is 10.2h.

When is the highest UV index in Erin?

Months with the highest UV index in Erin are May through August, with an average maximum UV index of 6.

What is the UV index intensity in May in Erin?

In May, the average daily maximum UV index in Erin is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in May - Erin, AL
  • Average high temperature in May: 81°F

The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (50.7°F).

  • Average low temperature in May: 59.7°F

Months with the highest average low temperature are July and August (69.4°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).

Average pressure in May - Erin, AL
  • Average pressure in May: 30.02"

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

Average wind speed in May - Erin, AL
  • Average wind speed in May: 5.6mph

The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).

Average humidity in May - Erin, 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 (73%).

Average rainfall in May - Erin, AL
  • Average rainfall in May: 3.23"

The wettest month (with the highest rainfall) is August (4.37").
The driest month (with the least rainfall) is October (2.09").

Average rainfall days in May - Erin, AL
  • Average rainfall days in May: 16.4 days

The month with the highest number of rainy days is July (24 days).
The month with the least rainy days is November (8.3 days).

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

The month with the highest snowfall is December (0.67").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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

The month with the highest number of snowfall days is January (1.4 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May / Average sunshine in May - Erin, 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: 10.2h

The month with the most sunshine is June (Average sunshine: 10.5h).
Months with the least sunshine are February and December (Average sunshine: 4.9).

Average sunshine days in May - Erin, AL
  • Average sunshine days in May: 12.7 days

Months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is July (5.6 days).

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

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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

Months with the most cloud cover are February and December (Cloud cover 47).
Months with the least cloud cover are June and October (Cloud cover 31).

Average visibility in May - Erin, AL
  • Average visibility in May: 6mi

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