May weather forecast
Decatur, GA

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Weather in May

The last month of the spring, May, is a moderately hot month in Decatur, Georgia, with an average temperature varying between 61.3°F (16.3°C) and 81°F (27.2°C).

Temperature

Decatur's May weather indicates a minor ascent in high-temperatures, adjusting from a pleasant 72.9°F (22.7°C) in April to a moderately hot 81°F (27.2°C). In May, Decatur's temperature tends to fall to an average low of 61.3°F (16.3°C) during the night.

Heat index

For most parts of May, the heat index is calculated to be 84.2°F (29°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

In May, the average relative humidity in Decatur is 71%.

Rainfall

In Decatur, during May, the rain falls for 13.5 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, in Decatur, there are 134.6 rainfall days, and 14.72" (374mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall in Decatur.

Daylight

In Decatur, the average length of the day in May is 13h and 56min.
On the first day of the month, sunrise is at 6:47 am and sunset at 8:20 pm. On the last day of May, in Decatur, sunrise is at 6:27 am and sunset at 8:42 pm EDT.

Sunshine

In Decatur, the average sunshine in May is 10h.

UV index

In Decatur, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 during May translates into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

What is the usual temperature for Decatur in May?

The high-temperature, in May, in Decatur, records 81°F (27.2°C), while the low-temperature is 61.3°F (16.3°C). In May, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 84.2°F (29°C).

What is the average humidity in May in Decatur?

The average relative humidity in May is 71%.

How much does it rain in Decatur in May?

In Decatur, Georgia, during May, the rain falls for 13.5 days and regularly aggregates up to 1.14" (29mm) of precipitation.

When it does not snow in Decatur?

April through November are months without snowfall in Decatur.

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

In Decatur, Georgia, the average day length in May is 13h and 56min.

When is the sunrise / sunset in May in Decatur?

In May, on the first day of the month, sunrise is at 6:47 am and sunset at 8:20 pm. On the last day of the month, in Decatur, sunrise is at 6:27 am and sunset at 8:42 pm EDT.

How long on average sun shines in May in Decatur?

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

What is the UV index intensity in May in Decatur?

The average daily maximum UV index in May in Decatur is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Decatur, GA

Average temperature in May - Decatur, GA
  • Average high temperature in May: 81°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (50.5°F).

  • Average low temperature in May: 61.3°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).

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Average pressure in May
Decatur, GA

Average pressure in May - Decatur, GA
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).

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Average wind speed in May
Decatur, GA

Average wind speed in May - Decatur, GA
  • Average wind speed in May: 5.8mph

The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in May
Decatur, GA

Average humidity in May - Decatur, GA
  • Average humidity in May: 71%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and August (69%).

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Average rainfall in May
Decatur, GA

Average rainfall in May - Decatur, GA
  • Average rainfall in May: 1.14"

The wettest month (with the highest rainfall) is August (2.32").
The driest month (with the least rainfall) is September (0.55").

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Average rainfall days in May
Decatur, GA

Average rainfall days in May - Decatur, GA
  • Average rainfall days in May: 13.5 days

The month with the highest number of rainy days is August (17.1 days).
The month with the least rainy days is November (6.9 days).

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Average snowfall in May
Decatur, GA

Average snowfall in May - Decatur, GA
  • Average snowfall in May: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Decatur, GA

Average snowfall days in May - Decatur, GA
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Decatur, GA

Average daylight in May / Average sunshine in May - Decatur, GA
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in May: 10h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).

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Average sunshine days in May
Decatur, GA

Average sunshine days in May - Decatur, GA
  • Average sunshine days in May: 15.3 days

The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in May
Decatur, GA

Average UV index in May - Decatur, GA
  • Average UV index in May: 6

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in May
Decatur, GA

Average cloud cover in May - Decatur, GA
  • Average cloud cover in May: 33

The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 29).

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Average visibility in May
Decatur, GA

Average visibility in May - Decatur, GA
  • 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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Decatur, Georgia, USA

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