May weather forecastLincoln, DE
May
Weather in May
The last month of the spring, May, is a pleasant month in Lincoln, Delaware, with an average temperature fluctuating between 57°F (13.9°C) and 70°F (21.1°C).Temperature
Lincoln's transition into May is marked by a rise in the average high-temperature, advancing from a mild 60.6°F (15.9°C) in April to an agreeable 70°F (21.1°C). The temperature dips to an average of 57°F (13.9°C) during May nights.Humidity
May is the most humid month, with an average relative humidity of 80%.Rainfall
In Lincoln, Delaware, in May, during 16.1 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Lincoln, there are 152.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, May, November and December. May is the first month it typically snows in Lincoln. Throughout May, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 10.4 snowfall days, and 4.29" (109mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 19min.On the first day of May in Lincoln, sunrise is at 6:02 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:20 pm EDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
The months with the highest UV index in Lincoln are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 6 during May, leads to the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Lincoln, DE
- Average high temperature in May: 70°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in May: 57°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 (29.7°F).
Average pressure in May
Lincoln, DE
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Lincoln, DE
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is February (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Lincoln, DE
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in May
Lincoln, DE
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (1.5").
Average rainfall days in May
Lincoln, DE
- Average rainfall days in May: 16.1 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in May
Lincoln, DE
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in May
Lincoln, DE
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Lincoln, DE
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in May
Lincoln, DE
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in May
Lincoln, DE
- 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
Lincoln, DE
- Average cloud cover in May: 40
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Lincoln, DE
- 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).





