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
May introduces a minor temperature shift, with average high-temperatures adjusting from April's agreeable 72.1°F (22.3°C) to a moderately hot 80.1°F (26.7°C). An average temperature of 63.1°F (17.3°C) marks the nights in May.Humidity
In May, the average relative humidity is 76%.Rainfall
In Saint Helena, during May, the rain falls for 15.7 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Saint Helena, during the entire year, the rain falls for 165.3 days and collects up to 34.21" (869mm) of precipitation.Snowfall
April through November are months without snowfall in Saint Helena.Daylight
The average length of the day in May is 13h and 59min.On the first day of May in Saint Helena, 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
In May, the average sunshine in Saint Helena 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 risk from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What is the usual temperature for Saint Helena in May?
What is the average humidity in May in Saint Helena?
How many days does it rain in May in Saint Helena?
When it does not snow in Saint Helena?
What is the average length of the day in May in Saint Helena?
When is the sunrise / sunset in May in Saint Helena?
How many hours of sunshine does Saint Helena have in May?
What is the UV index reading in May in Saint Helena?
Average temperature in May
Saint Helena, NC
- Average high temperature in May: 80.1°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 (52.7°F).
- Average low temperature in May: 63.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (36.7°F).
Average pressure in May
Saint Helena, NC
- Average pressure in May: 30.03"Hg
The months with the highest atmospheric pressure are January, November and December (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Saint Helena, NC
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Saint Helena, NC
- Average humidity in May: 76%
The month with the highest relative humidity is August (79%).
The months with the lowest relative humidity are January, February, March and April (74%).
Average rainfall in May
Saint Helena, NC
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is August (4.33").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in May
Saint Helena, NC
- Average rainfall days in May: 15.7 days
The months with the highest number of rainy days are July and August (19.8 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in May
Saint Helena, NC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Saint Helena, NC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (1 days).
The 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
Saint Helena, 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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in May
Saint Helena, NC
- Average sunshine days in May: 13.1 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in May
Saint Helena, NC
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in May
Saint Helena, NC
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Saint Helena, 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).
Saint Helena, North Carolina, USA
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