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
With the onset of May, the average high-temperature subtly transitions from an agreeable 71.8°F (22.1°C) in April to a warm 79.3°F (26.3°C). In Gaffney, May's nights observe an average temperature dip to a moderate 58.8°F (14.9°C).Humidity
In Gaffney, the average relative humidity in May is 75%.Rainfall
In Gaffney, in May, it is raining for 7 days, with typically 0.51" (13mm) of accumulated precipitation. In Gaffney, during the entire year, the rain falls for 74.2 days and collects up to 6.46" (164mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In May, the average length of the day is 14h and 1min.On the first day of May, sunrise is at 6:34 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:35 pm EDT.
Sunshine
In Gaffney, the average sunshine in May is 9.8h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 during May translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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 in Gaffney?
How many hours of daylight does Gaffney have in May?
When are sunrise and sunset in May in Gaffney?
How many hours of sunshine does Gaffney have in May?
What are the months with the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Gaffney, SC
- Average high temperature in May: 79.3°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in May: 58.8°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).
Average pressure in May
Gaffney, SC
- Average pressure in May: 30.03"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in May
Gaffney, SC
- Average wind speed in May: 5.6mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in May
Gaffney, SC
- Average humidity in May: 75%
The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in May
Gaffney, SC
- Average rainfall in May: 0.51"
The wettest month (with the highest rainfall) is December (0.83").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in May
Gaffney, SC
- Average rainfall days in May: 7 days
The months with the highest number of rainy days are April and July (7.8 days).
The months with the least rainy days are September and November (4.5 days).
Average snowfall in May
Gaffney, SC
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Gaffney, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1 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
Gaffney, SC
- Average daylight in May: 14h and 0min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in May
Gaffney, SC
- Average sunshine days in May: 21.1 days
The month with the most sunshine days is October (24.9 days).
The months with the least sunshine days are June and July (20.8 days).
Average UV index in May
Gaffney, SC
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in May
Gaffney, SC
- Average cloud cover in May: 37
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility in May
Gaffney, SC
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Gaffney, South Carolina, USA
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