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 brings a rise in the average high-temperature, transitioning from April's enjoyable 66°F (18.9°C) to a moderately hot 75.4°F (24.1°C). Simpsonville records an average low-temperature of 56.3°F (13.5°C) throughout the month of May.Humidity
The average relative humidity in May is 78%.Rainfall
In May, the rain falls for 17.3 days. Throughout May, 2.64" (67mm) of precipitation is accumulated. In Simpsonville, Kentucky, during the entire year, the rain falls for 152.3 days and collects up to 25.75" (654mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In May, the average length of the day is 14h and 16min.On the first day of May, sunrise is at 6:43 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 8:58 pm EDT.
Sunshine
In May, the average sunshine is 9h.UV index
In Simpsonville, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 5 during May translates into the following guidance:
Adopt protective measures - Suggestions to resist sunburn are offered. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How many days does it rain in May in Simpsonville?
When it does not snow?
Does it snow in May?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Simpsonville, KY
- Average high temperature in May: 75.4°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 56.3°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in May
Simpsonville, 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 (29.95"Hg).
Average wind speed in May
Simpsonville, KY
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in May
Simpsonville, KY
- Average humidity in May: 78%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are August, September and October (74%).
Average rainfall in May
Simpsonville, KY
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is April (2.8").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in May
Simpsonville, KY
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in May
Simpsonville, KY
- Average snowfall in May: 0"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Simpsonville, KY
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (7.6 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
Simpsonville, 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 36min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Simpsonville, KY
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is October (19.4 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in May
Simpsonville, 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
Simpsonville, KY
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Simpsonville, KY
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and May (5mi).
Simpsonville, Kentucky, USA
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