Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The shift from April to May brings an increase in the average high-temperature, moving from an enjoyable 62.6°F (17°C) to an agreeable 72.1°F (22.3°C). Throughout May nights, Port Penn experiences a consistent temperature average of 55.4°F (13°C).Humidity
The months with the highest humidity are May, June, September and October, with an average relative humidity of 77%.Rainfall
In May, in Port Penn, the rain falls for 16.7 days. Throughout May, 2.48" (63mm) of precipitation is accumulated. Throughout the year, in Port Penn, there are 147.7 rainfall days, and 27.8" (706mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Port Penn aggregates 0.12" (3mm) of snow. In Port Penn, during the entire year, snow falls for 13.8 days and aggregates up to 6.65" (169mm) of snow.Daylight
In May, the average length of the day in Port Penn is 14h and 22min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:56 pm. On the last day of May, in Port Penn, sunrise is at 5:37 am and sunset at 8:23 pm EDT.
Sunshine
In May, the average sunshine in Port Penn is 8.6h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Frequently asked questions
What is the usual temperature for Port Penn in May?
What are the most humid months in Port Penn?
What is the average humidity in May in Port Penn?
How many days does it rain in May in Port Penn?
What is the last month it snows in Port Penn?
What is the average length of the day in May in Port Penn?
When is the sunrise / sunset in May in Port Penn?
How many hours of sunshine does Port Penn have in May?
When is the highest UV index in Port Penn?
What is the UV index reading in May in Port Penn?
Average temperature in May
Port Penn, DE
- Average high temperature in May: 72.1°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in May: 55.4°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in May
Port Penn, 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
Port Penn, DE
- Average wind speed in May: 7.2mph
The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in May
Port Penn, DE
- Average humidity in May: 77%
The months with the highest relative humidity are May, June, September and October (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall in May
Port Penn, DE
- Average rainfall in May: 2.48"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in May
Port Penn, DE
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (8 days).
Average snowfall in May
Port Penn, DE
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Port Penn, DE
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Port Penn, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Port Penn, DE
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (20.6 days).
The months with the least sunshine days are May and July (11.8 days).
Average UV index in May
Port Penn, 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
Port Penn, DE
- Average cloud cover in May: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Port Penn, 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).
Port Penn, Delaware, USA
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