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
Iris, South Carolina, observes a slight uplift in the average high-temperature with the onset of May, adjusting from April's agreeable 73.2°F (22.9°C) to a moderately hot 81.1°F (27.3°C). The month of May records an average low-temperature of 60.4°F (15.8°C) in Iris.Heat index
May's heat index is evaluated at a tropical 86°F (30°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In Iris, the average relative humidity in May is 75%.Rainfall
In Iris, in May, during 14.8 rainfall days, 3.23" (82mm) of precipitation is typically accumulated. In Iris, during the entire year, the rain falls for 160.1 days and collects up to 33.94" (862mm) of precipitation.Snowfall
April through November are months without snowfall in Iris.Daylight
In Iris, the average length of the day in May is 13h and 58min.On the first day of May in Iris, South Carolina, sunrise is at 6:39 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:18 am and sunset at 8:36 pm EDT.
Sunshine
The average sunshine in May is 9.9h.UV index
The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 6 in May leads to these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What are the temperatures in Iris in May?
What is the average humidity in May in Iris?
How much does it rain in Iris in May?
When it does not snow in Iris?
How many hours of daylight does Iris have in May?
When are sunrise and sunset in May in Iris?
How many hours of sunshine does Iris have in May?
What is the UV index reading in May in Iris?
Average temperature in May
Iris, SC
- Average high temperature in May: 81.1°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in May: 60.4°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in May
Iris, 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
Iris, SC
- Average wind speed in May: 5.8mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in May
Iris, SC
- Average humidity in May: 75%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is July (70%).
Average rainfall in May
Iris, SC
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is December (3.74").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in May
Iris, SC
- Average rainfall days in May: 14.8 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is October (9.1 days).
Average snowfall in May
Iris, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in May
Iris, SC
- 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
Iris, SC
- 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 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in May
Iris, SC
- Average sunshine days in May: 14 days
The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in May
Iris, SC
- Average UV index in May: 6
The months with the highest UV index are June and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Iris, SC
- Average cloud cover in May: 34
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in May
Iris, 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).
Iris, South Carolina, USA
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