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 Effingham transitions into May, a marginal rise in the average high-temperature is observed, moving from an agreeable 72.5°F (22.5°C) in April to a warm 79.7°F (26.5°C). In Effingham, an average low-temperature of 62.6°F (17°C) is recorded during May nights.Humidity
May is the most humid month, with an average relative humidity of 78%.Rainfall
In Effingham, in May, during 17 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, there are 168.6 rainfall days, and 33.82" (859mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Effingham.Daylight
The average length of the day in May in Effingham is 13h and 57min.On the first day of May, sunrise is at 6:28 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 8:25 pm EDT.
Sunshine
In Effingham, the average sunshine in May is 9.9h.UV index
In Effingham, South Carolina, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: In May, the maximum UV index of 6 suggests these recommendations:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What are the temperatures in Effingham in May?
What is the most humid month in Effingham?
What is the average humidity in May in Effingham?
How much does it rain in Effingham in May?
When it does not snow in Effingham?
What is the average length of the day in May in Effingham?
When are sunrise and sunset in May in Effingham?
How many hours of sunshine does Effingham have in May?
What is the UV index reading in May in Effingham?
Average temperature in May
Effingham, SC
- Average high temperature in May: 79.7°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (52.3°F).
- Average low temperature in May: 62.6°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in May
Effingham, SC
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in May
Effingham, SC
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Effingham, SC
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in May
Effingham, SC
- Average rainfall in May: 3.7"
The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.65").
Average rainfall days in May
Effingham, SC
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in May
Effingham, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Effingham, SC
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (0.8 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
Effingham, SC
- Average daylight in May: 13h and 5min
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 30min).
Average sunshine days in May
Effingham, SC
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is July (8.1 days).
Average UV index in May
Effingham, SC
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in May
Effingham, SC
- Average cloud cover in May: 36
The months with the most cloud cover are February and December (Cloud cover 41).
The months with the least cloud cover are June and October (Cloud cover 29).
Average visibility in May
Effingham, SC
- 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).
Effingham, South Carolina, USA
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