May weather forecastClaymont, DE
May
Weather in May
May marks the beginning of warmer weather in Claymont, with temperatures peaking at 71.6°F (22°C) and dipping to a minimum of around 54.5°F (12.5°C). With the most rainfall seen so far this year at3.19" (81mm), the month can get soggy at times. Following suit is an increase in humidity, averaging at 77%, making the month feel warmer. May's more substantial sunlight makes it an ideal time for outdoor activities. As the weather continues to warm up, the tranquil sunsets of May paints Claymont in beautiful hues.
Temperature
May sees a temperature increase, moving from a comfortable 61.3°F (16.3°C) in April to an agreeable 71.6°F (22°C). May is noted for a mean low-temperature of 54.5°F (12.5°C).Humidity
The average relative humidity in May is 77%.Rainfall
In May, the rain falls for 18.7 days. Throughout May, 3.19" (81mm) of precipitation is accumulated. Throughout the year, there are 168.9 rainfall days, and 35.55" (903mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Claymont aggregates 0.12" (3mm) of snow. In Claymont, during the entire year, snow falls for 21.9 days and aggregates up to 12.05" (306mm) of snow.Daylight
In Claymont, the average length of the day in May is 14h and 23min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:56 pm. On the last day of May, in Claymont, sunrise is at 5:35 am and sunset at 8:23 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 6 in May translates into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Enhance your sun protection with tightly woven, yet airy clothing. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Claymont, DE
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in May
Claymont, DE
- Average pressure in May: 30.01"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
Claymont, DE
- Average wind speed in May: 6.8mph
The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Claymont, DE
- Average humidity in May: 77%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Claymont, DE
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days in May
Claymont, DE
- Average rainfall days in May: 18.7 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in May
Claymont, DE
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Claymont, DE
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Claymont, DE
- Average daylight in May: 14h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Claymont, DE
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is November (18.6 days).
The months with the least sunshine days are May and July (9.8 days).
Average UV index in May
Claymont, 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, February, November and December (UV index 2).
Average cloud cover in May
Claymont, DE
- Average cloud cover in May: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Claymont, 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).





