May weather forecast
Norcross, GA

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Weather in May

The last month of the spring, May, is a moderately hot month in Norcross, Georgia, with an average temperature ranging between min 61.3°F (16.3°C) and max 80.8°F (27.1°C).

Temperature

In May, the average high-temperature marginally rises from an agreeable 72.3°F (22.4°C) in April to a warm 80.8°F (27.1°C). The average low-temperature during May nights is a refreshing 61.3°F (16.3°C).

Heat index

The heat index value during May is calculated to be 84.2°F (29°C). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

In May, the average relative humidity is 71%.

Rainfall

In Norcross, in May, during 15.8 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, in Norcross, there are 154.1 rainfall days, and 23.74" (603mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Norcross, the average length of the day in May is 13h and 56min.
On the first day of May in Norcross, sunrise is at 6:46 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:42 pm EDT.

Sunshine

The average sunshine in May is 9.8h.

UV index

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: The UV index of 6 in May translates into these instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

What is the average May temperature in Norcross?

Norcross in May has an average high-temperature of 80.8°F (27.1°C) and an average low-temperature of 61.3°F (16.3°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in May is calculated to be 84.2°F (29°C).

What is the average humidity in May in Norcross?

In May, the average relative humidity is 71%.

How much does it rain in Norcross in May?

In May, in Norcross, the rain falls for 15.8 days. Throughout May, 2.56" (65mm) of precipitation is accumulated.

When it does not snow in Norcross?

April through October are months without snowfall in Norcross.

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

The average day length in May in Norcross, Georgia, is 13h and 56min.

When is the sunrise / sunset in May in Norcross?

On the first day of May in Norcross, Georgia, sunrise is at 6:46 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 8:42 pm EDT.

How many hours of sunshine does Norcross have in May?

In May, the average sunshine duration in Norcross, Georgia, is 9.8h.

What is the UV index intensity in May in Norcross?

In Norcross, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Norcross, GA

Average temperature in May - Norcross, GA
  • Average high temperature in May: 80.8°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 (49.6°F).

  • Average low temperature in May: 61.3°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).

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Average pressure in May
Norcross, GA

Average pressure in May - Norcross, 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
Norcross, GA

Average wind speed in May - Norcross, 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 (4.6mph).

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Average humidity in May
Norcross, GA

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

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (68%).

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Average rainfall in May
Norcross, GA

Average rainfall in May - Norcross, GA
  • Average rainfall in May: 2.56"

The wettest month (with the highest rainfall) is August (3.58").
The driest months (with the least rainfall) are January and October (1.34").

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Average rainfall days in May
Norcross, GA

Average rainfall days in May - Norcross, GA
  • Average rainfall days in May: 15.8 days

The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is November (8.6 days).

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Average snowfall in May
Norcross, GA

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

The month with the highest snowfall is January (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in May
Norcross, GA

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

The month with the highest number of snowfall days is January (1.1 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
Norcross, GA

Average daylight in May / Average sunshine in May - Norcross, 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: 9h and 54min).

  • Average sunshine in May: 9h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in May
Norcross, GA

Average sunshine days in May - Norcross, GA
  • Average sunshine days in May: 13.4 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (10.6 days).

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Average UV index in May
Norcross, GA

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

The month with the highest UV index is June (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
Norcross, GA

Average cloud cover in May - Norcross, GA
  • Average cloud cover in May: 34

The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).

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Average visibility in May
Norcross, GA

Average visibility in May - Norcross, 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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Norcross, Georgia, USA

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