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
In Delta, stepping into May brings a temperature increase, moving up from April's comfortable 61.9°F (16.6°C) to a pleasant 71.4°F (21.9°C). Throughout May, Delta registers a consistent average low-temperature of 54.5°F (12.5°C).Humidity
May is the most humid month, with an average relative humidity of 80%.Rainfall
In May, the rain falls for 19.3 days. Throughout May, 3.43" (87mm) of precipitation is accumulated. Throughout the year, there are 170.1 rainfall days, and 36.42" (925mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Delta. May is the last month it regularly snows. During 0.1 snowfall days, in May, Delta aggregates 0.08" (2mm) of snow. Throughout the year, there are 21.9 snowfall days, and 10.55" (268mm) of snow is accumulated.Daylight
In Delta, the average length of the day in May is 14h and 23min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:59 pm. On the last day of May, sunrise is at 5:39 am and sunset at 8:26 pm EDT.
Sunshine
In Delta, 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 estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 6 transforms into these recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the most humid month?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does Delta have in May?
When are sunrise and sunset in May?
How many hours of sunshine does Delta have in May?
What are the months with the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Delta, PA
- Average high temperature in May: 71.4°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in May: 54.5°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in May
Delta, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Delta, PA
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is March (9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Delta, PA
- Average humidity in May: 80%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Delta, PA
- Average rainfall in May: 3.43"
The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is January (2.36").
Average rainfall days in May
Delta, PA
- Average rainfall days in May: 19.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Delta, PA
- Average snowfall in May: 0.08"
The month with the highest snowfall is March (3.62").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Delta, PA
- 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
Delta, PA
- 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
Delta, PA
- Average sunshine days in May: 8.8 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in May
Delta, PA
- 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
Delta, PA
- Average cloud cover in May: 46
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
Delta, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Delta, Pennsylvania, USA
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