Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The start of May signals a slight increase in the average high-temperature, moving from an agreeable 70.7°F (21.5°C) in April to a moderately hot 78.6°F (25.9°C). During May, the average low-temperature is a refreshing 65.5°F (18.6°C).Humidity
In May, the average relative humidity is 76%.Rainfall
In Castle Hayne, during May, the rain falls for 16.3 days and regularly aggregates up to 3.58" (91mm) of precipitation. In Castle Hayne, during the entire year, the rain falls for 182.5 days and collects up to 41.42" (1052mm) of precipitation.Snowfall
April through December are months without snowfall.Daylight
The average length of the day in May is 13h and 58min.On the first day of May, sunrise is at 6:20 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 6:00 am and sunset at 8:18 pm EDT.
Sunshine
The average sunshine in May is 10.1h.UV index
The average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In May, a regular UV index of 6 translates into these guidelines:
Inhibit overexposure. Warding off sun damage is of utmost importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Castle Hayne have in May?
How high is the UV index in May?
Average temperature in May
Castle Hayne, NC
- Average high temperature in May: 78.6°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in May: 65.5°F
The month with the highest average low temperature is July (75.4°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in May
Castle Hayne, NC
- Average pressure in May: 30.03"Hg
The months with the highest atmospheric pressure are January and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Castle Hayne, NC
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Castle Hayne, NC
- Average humidity in May: 76%
The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January and March (73%).
Average rainfall in May
Castle Hayne, NC
- Average rainfall in May: 3.58"
The wettest month (with the highest rainfall) is August (5.59").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in May
Castle Hayne, NC
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in May
Castle Hayne, NC
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Castle Hayne, NC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Castle Hayne, NC
- Average daylight in May: 14h and 0min
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: 10h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Castle Hayne, NC
- Average sunshine days in May: 11.7 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is August (6.3 days).
Average UV index in May
Castle Hayne, NC
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in May
Castle Hayne, NC
- Average cloud cover in May: 31
The months with the most cloud cover are February and December (Cloud cover 40).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in May
Castle Hayne, NC
- 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).
Castle Hayne, North Carolina, USA
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