May weather forecastMonticello, SC
May
Weather in May
May, the last month of the spring in Monticello, is a moderately hot month, with an average temperature fluctuating between 80.2°F (26.8°C) and 61.9°F (16.6°C).Temperature
The shift into May brings a slight increase in the average high-temperature, moving from an agreeable 73°F (22.8°C) in April to a moderately hot 80.2°F (26.8°C). In Monticello, the May nights cool down to an average low of 61.9°F (16.6°C).Humidity
The months with the highest humidity in Monticello are May and December, with an average relative humidity of 75%.Rainfall
In Monticello, in May, it is raining for 15.8 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, in Monticello, there are 160.7 rainfall days, and 32.13" (816mm) of precipitation is accumulated.Snowfall
In Monticello, snow does not fall in April through October.Daylight
The average length of the day in May is 13h and 58min.On the first day of May, sunrise is at 6:34 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:31 pm EDT.
Sunshine
The average sunshine in May is 9.8h.UV index
The average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Monticello, SC
- Average high temperature in May: 80.2°F
The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in May: 61.9°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in May
Monticello, SC
- Average pressure in May: 30.03"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Monticello, SC
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are February and April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Monticello, SC
- Average humidity in May: 75%
The months with the highest relative humidity are May and December (75%).
The months with the lowest relative humidity are June, July and November (71%).
Average rainfall in May
Monticello, SC
- Average rainfall in May: 2.95"
The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in May
Monticello, SC
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is July (18 days).
The months with the least rainy days are October and November (9 days).
Average snowfall in May
Monticello, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Monticello, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.2 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
Monticello, 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 48min
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 24min).
Average sunshine days in May
Monticello, SC
- Average sunshine days in May: 13.6 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (10.5 days).
Average UV index in May
Monticello, 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
Monticello, SC
- Average cloud cover in May: 35
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in May
Monticello, 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).





