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
As May arrives, a rise in the average high-temperature is observed, moving from a comfortable 64.9°F (18.3°C) in April to a warm 74.3°F (23.5°C). Port Royal, in May, observes a steady average low-temperature of 55.9°F (13.3°C).Humidity
The average relative humidity in May is 79%.Rainfall
In Port Royal, in May, during 19 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. In Port Royal, during the entire year, the rain falls for 174.2 days and collects up to 36.1" (917mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 17min.On the first day of May, sunrise is at 6:42 am and sunset at 8:32 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:58 pm EDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
In Port Royal, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 during May leads to these advisories:
Exercise prevention - Warding off sunburn is urged. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. 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 usual temperature for Port Royal in May?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When are sunrise and sunset in May in Port Royal?
How long on average sun shines in May in Port Royal?
What is the UV index intensity in May?
Average temperature in May
Port Royal, KY
- Average high temperature in May: 74.3°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Port Royal, KY
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Port Royal, KY
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in May
Port Royal, KY
- Average humidity in May: 79%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (75%).
Average rainfall in May
Port Royal, KY
- Average rainfall in May: 3.5"
The wettest month (with the highest rainfall) is April (4.06").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in May
Port Royal, KY
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is February (10.4 days).
Average snowfall in May
Port Royal, KY
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Port Royal, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Port Royal, KY
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Port Royal, KY
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in May
Port Royal, KY
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Port Royal, KY
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in May
Port Royal, KY
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May, July and December (5mi).
Port Royal, Kentucky, USA
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