May weather forecast
Claymont, DE

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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 at

3.19" (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.

Frequently asked questions

What is the average May temperature?

May temperatures vary between a high-temperature of 71.6°F (22°C) and a low-temperature of 54.5°F (12.5°C).

What is the average humidity in May?

In May, the average relative humidity is 77%.

How much does it rain in May?

In Claymont, in May, during 18.7 rainfall days, 3.19" (81mm) of precipitation is typically accumulated.

What is the last month it snows?

May is the last month it regularly snows. During 0.1 snowfall days, in May, Claymont aggregates 0.12" (3mm) of snow.

What is the average length of the day in May?

In May, the average day length is 14h and 23min.

When are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:01 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:23 pm EDT.

How many hours of sunshine does Claymont have in May?

In May, the average sunshine duration is 8.6h.

When is the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in May?

In Claymont, the average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Claymont, DE

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in May - Claymont, DE
  • Average daylight in May: 14h and 2min

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 4min

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 - 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 - 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 - 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 - 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).

Claymont, Delaware, USA

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