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 Allendale enters May, the average high-temperature marginally increases from the 75°F (23.9°C) of April to a still warm 81.7°F (27.6°C). In Allendale, the expected average low-temperature for May is a refreshing 64°F (17.8°C).Heat index
The heat index value during May is calculated to be a hot 86°F (30°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Know that the heat index computations account for shaded terrains and slight winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
The average relative humidity in May is 75%.Rainfall
In May, the rain falls for 14.6 days. Throughout May, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 152.9 rainfall days, and 31.18" (792mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
In May, the average length of the day is 13h and 52min.On the first day of May, sunrise is at 6:36 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 6:17 am and sunset at 8:28 pm EDT.
Sunshine
The average sunshine in May in Allendale is 9.9h.UV index
In May, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 6 during May translates into these guidelines:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Allendale in May?
What is the average humidity in May?
How much does it rain in May?
When it does not snow?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the UV index reading in May in Allendale?
Average temperature in May
Allendale, SC
- Average high temperature in May: 81.7°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (55.4°F).
- Average low temperature in May: 64°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in May
Allendale, SC
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Allendale, SC
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Allendale, SC
- Average humidity in May: 75%
The months with the highest relative humidity are August and December (76%).
The month with the lowest relative humidity is January (70%).
Average rainfall in May
Allendale, SC
- Average rainfall in May: 2.8"
The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in May
Allendale, SC
- Average rainfall days in May: 14.6 days
The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in May
Allendale, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Allendale, SC
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Allendale, SC
- Average daylight in May: 13h and 5min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in May: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in May
Allendale, SC
- Average sunshine days in May: 14.5 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (7.3 days).
Average UV index in May
Allendale, SC
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in May
Allendale, SC
- Average cloud cover in May: 34
The months with the most cloud cover are February and December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in May
Allendale, 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).
Allendale, South Carolina, USA
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