May weather forecast and climate
Raleigh, NC

The George Washington statue overlooking the city buildings of Raleigh, North Carolina
The George Washington statue overlooking the city buildings of Raleigh, North Carolina
The last month of the spring, May, is a warm month in Raleigh, North Carolina, with average temperature fluctuating between 78.4°F (25.8°C) and 60.8°F (16°C).

Temperature

In Raleigh, the average high-temperature in May marginally rises, from an agreeable 70.5°F (21.4°C) in April, to a warm 78.4°F (25.8°C). In Raleigh, the average low-temperature is 60.8°F (16°C).

Humidity

May, September and December, with an average relative humidity of 76%, are most humid months in Raleigh.

Rainfall

In Raleigh, North Carolina, during May, the rain falls for 17.1 days and regularly aggregates up to 3.19" (81mm) of precipitation. In Raleigh, North Carolina, during the entire year, the rain falls for 163.2 days and collects up to 32.2" (818mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In Raleigh, North Carolina, the average length of the day is 14.1h.

Sunshine

The average sunshine in Raleigh, North Carolina, is 9.5h.

UV index

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 unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 6 interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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 Raleigh?

The average high-temperature, in May, in Raleigh, is 78.4°F (25.8°C), while the average low-temperature is 60.8°F (16°C).

What are the most humid months in Raleigh?

Months with the highest humidity in Raleigh, North Carolina, are May, September and December, with an average relative humidity of 76%.

What is the average humidity in May in Raleigh?

In May, the average relative humidity is 76%.

How much does it rain in Raleigh in May?

In Raleigh, North Carolina, during May, the rain falls for 17.1 days and regularly aggregates up to 3.19" (81mm) of precipitation.

When it does not snow in Raleigh?

April through October are months without snowfall in Raleigh.

How many hours of daylight does Raleigh have in May?

The average length of the day in May in Raleigh, North Carolina, is 14.1h.

How long on average sun shines in May in Raleigh?

In Raleigh, North Carolina, the average sunshine in May is 9.5h.

What is the UV index intensity in May in Raleigh?

In Raleigh, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV rays.
Average temperature in May - Raleigh, NC
  • Average high temperature in May: 78.4°F

The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in May: 60.8°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in May - Raleigh, NC
  • Average pressure in May: 30.02"

The month with the highest atmospheric pressure is November (30.15").
The month with the lowest atmospheric pressure is June (29.96").

Average wind speed in May - Raleigh, NC
  • Average wind speed in May: 7mph

The windiest month (with the highest average wind speed) is April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in May - Raleigh, NC
  • Average humidity in May: 76%

Months with the highest relative humidity are May, September and December (76%).
Months with the lowest relative humidity are January, March, April, June, July and November (73%).

Average rainfall in May - Raleigh, NC
  • Average rainfall in May: 3.19"

The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is October (2.13").

Average rainfall days in May - Raleigh, NC
  • Average rainfall days in May: 17.1 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in May - Raleigh, NC
  • Average snowfall in May: 0"

The month with the highest snowfall is January (1.46").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May - Raleigh, NC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is February (2.1 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 - Raleigh, NC
  • Average daylight in May: 14.1h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in May: 9.5h

Months with the most sunshine are June and July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 5.5h).

Average sunshine days in May - Raleigh, NC
  • Average sunshine days in May: 12 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.5 days).

Average UV index in May - Raleigh, NC
  • Average UV index in May: 6

Months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in May - Raleigh, NC
  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 30).

Average visibility in May - Raleigh, NC
  • 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).