May weather forecast
Slaughter Beach, DE

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May

Weather in May

May brings a distinct change to Slaughter Beach, Delaware, with temperatures rising from 57°F (13.9°C) to 70°F (21.1°C) to mark the beginning of a warmer season. Longer sunshine hours and significant daylight hours add to the pleasant, inviting weather. This month exhibits an increased rate of rainfall, contributing to a lush and revitalized natural environment. Less wind, combined with the warm weather, make it a favorable month for outdoor activities. However, residents should be mindful of the increment in UV index as sun protection becomes crucial during daylight hours.

Temperature

May's arrival in Slaughter Beach, Delaware, brings a temperature shift, moving from a mild 60.6°F (15.9°C) in April to an agreeable 70°F (21.1°C). The average nighttime temperature in Slaughter Beach lowers to a mild 57°F (13.9°C) throughout May.

Humidity

May is the most humid month in Slaughter Beach, with an average relative humidity of 80%.

Rainfall

In Slaughter Beach, Delaware, during May, the rain falls for 16.1 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Slaughter Beach, there are 152.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.

Snowfall

January through March, May, November and December are months with snowfall. May is the first month it typically snows. 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 in Slaughter Beach is 14h and 19min.
On the first day of the month, sunrise is at 6:02 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:37 am and sunset at 8:20 pm EDT.

Sunshine

In Slaughter Beach, the average sunshine in May is 9.1h.

UV index

The months with the highest UV index in Slaughter Beach are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum high daily UV index of 6 during May translates into the following directions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Slaughter Beach?
An average high-temperature, in May, in Slaughter Beach, is 70°F (21.1°C) and the average low-temperature is 57°F (13.9°C).
What is the most humid month in Slaughter Beach?
The most humid month in Slaughter Beach is May, with an average relative humidity of 80%.
What is the average humidity in May in Slaughter Beach?
In May, the average relative humidity in Slaughter Beach is 80%.
How much does it rain in Slaughter Beach in May?
In Slaughter Beach, Delaware, in May, it is raining for 16.1 days, with typically 2.28" (58mm) of accumulated precipitation.
When does it start to snow in Slaughter Beach?
May is the first month it typically snows in Slaughter Beach, Delaware. Throughout May, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow.
What is the average length of the day in May in Slaughter Beach?
The average day length in May is 14h and 19min.
When are sunrise and sunset in May in Slaughter Beach?
On the first day of May, sunrise is at 6:02 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:20 pm EDT.
How long on average sun shines in May in Slaughter Beach?
In Slaughter Beach, the average sunshine duration in May is 9.1h.
What are the months with the highest UV index in Slaughter Beach?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Slaughter Beach.
What is the UV index reading in May in Slaughter Beach?
In Slaughter Beach, Delaware, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMayJJASOND
Apr
May
Jun
Average high temperature
60.6°F
70°F
78.1°F
Average low temperature
47.7°F
57°F
65.5°F
Average pressure
30"Hg
30.02"Hg
29.94"Hg
Average wind speed
10.2mph
8.6mph
7.8mph
Average max. wind speed
11.1mph
9.2mph
8.4mph
Average wind speed gusts
16.8mph
14mph
12.9mph
Average humidity
75%
80%
79%
Average rainfall
1.61"
2.28"
2.48"
Average rainfall days
13.5
16.1
14.8
Average snowfall
0"
0.12"
0"
Average snowfall days
0
0.1
0
Average daylight
13h 1min
14h 2min
14h 5min
Average sunshine
8h 5min
9h 1min
10h 2min
Average sunshine days
14.7
12.3
13
Average UV index
4
6
6
Average cloud cover
40%
40%
30%
Average visibility
6mi
6mi
6mi
Average temperature in May - Slaughter Beach, DE
Average temperature in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average pressure in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average wind speed in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average humidity in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average rainfall in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average rainfall days in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average snowfall in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average snowfall days in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average daylight in May /
Average sunshine in May
Slaughter Beach, 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 30min).

  • Average sunshine in May: 9h and 1min

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 - Slaughter Beach, DE
Average sunshine days in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average UV index in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average cloud cover in May
Slaughter Beach, 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 - Slaughter Beach, DE
Average visibility in May
Slaughter Beach, 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).

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