May weather forecast
Henlopen Acres, DE

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Weather in May

May in Henlopen Acres blends the remnants of spring and the impending summer in a beautiful symphony. As temperatures peak at 65.5°F (18.6°C), residents trade their jackets for lighter summer attire. The sun generously splashes its warm rays across the city, with sporadic rainfall ensuring that the greenery remains lush. Despite the reducing wind strength, a mild breeze often sweeps across Henlopen Acres, making the weather increasingly tolerable. Expect the days to lengthen, providing residents with extra daylight to bask in the transitioning weather.

Temperature

May in Henlopen Acres, Delaware, brings a rise in the average high-temperature, transitioning from April's moderate 56.5°F (13.6°C) to a still refreshing 65.5°F (18.6°C). May records a small disparity from daytime temperatures, marking an average low-temperature of 58.5°F (14.7°C) in Henlopen Acres.

Humidity

With an average relative humidity of 82%, May is the most humid month in Henlopen Acres, Delaware.

Rainfall

In Henlopen Acres, Delaware, in May, it is raining for 9 days, with typically 0.55" (14mm) of accumulated precipitation. In Henlopen Acres, Delaware, during the entire year, the rain falls for 89.4 days and collects up to 6.18" (157mm) of precipitation.

Snowfall

April through October are months without snowfall in Henlopen Acres, Delaware.

Daylight

The average length of the day in May in Henlopen Acres is 14h and 18min.
On the first day of the month, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of May, in Henlopen Acres, sunrise is at 5:37 am and sunset at 8:18 pm EDT.

Sunshine

In May, the average sunshine in Henlopen Acres is 9.4h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Henlopen Acres in May?

The high-temperature during May is 65.5°F (18.6°C) and the low-temperature is 58.5°F (14.7°C).

What is the most humid month in Henlopen Acres?

The most humid month in Henlopen Acres is May, with an average relative humidity of 82%.

What is the average humidity in May in Henlopen Acres?

In May, the average relative humidity is 82%.

How many days does it rain in May in Henlopen Acres?

In Henlopen Acres, in May, it is raining for 9 days, with typically 0.55" (14mm) of accumulated precipitation.

When it does not snow in Henlopen Acres?

In Henlopen Acres, snow does not fall in April through October.

How many hours of daylight does Henlopen Acres have in May?

In Henlopen Acres, Delaware, the average day length in May is 14h and 18min.

What time are sunrise and sunset in May in Henlopen Acres?

On the first day of May in Henlopen Acres, sunrise is at 6:01 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:18 pm EDT.

How long on average sun shines in May in Henlopen Acres?

In May, the average sunshine duration is 9.4h.

What are the months with the highest UV index in Henlopen Acres?

The months with the highest UV index in Henlopen Acres, Delaware, are May through August, with an average maximum UV index of 6.

What is the UV index reading in May in Henlopen Acres?

In May, the average daily maximum UV index in Henlopen Acres is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJFMAMayJJASOND
Apr
May
Jun
Average high temperature
56.5°F 13.6°C
65.5°F 18.6°C
74.5°F 23.6°C
Average low temperature
48.7°F 9.3°C
58.5°F 14.7°C
67.6°F 19.8°C
Average pressure
30" 762mmHg
30.02" 763mmHg
29.94" 760mmHg
Average wind speed
12.4mph 20km/h
10.7mph 17.2km/h
9.8mph 15.8km/h
Average max. wind speed
13.4mph 21.6km/h
11.5mph 18.5km/h
10.4mph 16.7km/h
Average wind speed gusts
21.6mph 34.8km/h
18.5mph 29.8km/h
16.7mph 26.9km/h
Average humidity
77%
82%
80%
Average rainfall
0.43" 11mm
0.55" 14mm
0.63" 16mm
Average rainfall days
7.7
9
8.8
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0.1
0
0
Average daylight
13h 1min
14h 2min
14h 5min
Average sunshine
9h 1min
9h 2min
10h 4min
Average sunshine days
20.7
19.5
18.2
Average UV index
4
6
6
Average cloud cover
38%
38%
28%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in May
Henlopen Acres, DE

Average temperature in May - Henlopen Acres, DE
  • Average high temperature in May: 65.5°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in May: 58.5°F

The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (33.1°F).

Average pressure in May
Henlopen Acres, DE

Average pressure in May - Henlopen Acres, 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
Henlopen Acres, DE

Average wind speed in May - Henlopen Acres, DE
  • Average wind speed in May: 10.7mph

The windiest month (with the highest average wind speed) is January (13mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

Average humidity in May
Henlopen Acres, DE

Average humidity in May - Henlopen Acres, DE
  • Average humidity in May: 82%

The month with the highest relative humidity is May (82%).
The month with the lowest relative humidity is November (73%).

Average rainfall in May
Henlopen Acres, DE

Average rainfall in May - Henlopen Acres, DE
  • Average rainfall in May: 0.55"

The wettest month (with the highest rainfall) is October (0.71").
The driest month (with the least rainfall) is September (0.28").

Average rainfall days in May
Henlopen Acres, DE

Average rainfall days in May - Henlopen Acres, DE
  • Average rainfall days in May: 9 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is November (4.9 days).

Average snowfall in May
Henlopen Acres, DE

Average snowfall in May - Henlopen Acres, DE
  • Average snowfall in May: 0"

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in May
Henlopen Acres, DE

Average snowfall days in May - Henlopen Acres, DE
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Henlopen Acres, DE

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

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 2min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

Average sunshine days in May
Henlopen Acres, DE

Average sunshine days in May - Henlopen Acres, DE
  • Average sunshine days in May: 19.5 days

The month with the most sunshine days is January (23.5 days).
The months with the least sunshine days are June and July (18.2 days).

Average UV index in May
Henlopen Acres, DE

Average UV index in May - Henlopen Acres, 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 and December (UV index 2).

Average cloud cover in May
Henlopen Acres, DE

Average cloud cover in May - Henlopen Acres, DE
  • Average cloud cover in May: 38

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 24).

Average visibility in May
Henlopen Acres, DE

Average visibility in May - Henlopen Acres, 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).

Henlopen Acres, Delaware, USA

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