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 average high-temperature increases in May, moving from a fresh 54.3°F (12.4°C) in April to a refreshing 67.3°F (19.6°C). In Atco, May nights cool down to an average of 47.1°F (8.4°C).Humidity
The average relative humidity in May is 79%.Rainfall
In Atco, during May, the rain falls for 15.6 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Atco, during the entire year, the rain falls for 132.5 days and collects up to 19.21" (488mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.4 snowfall days, in May, Atco aggregates 0.2" (5mm) of snow. In Atco, during the entire year, snow falls for 43.6 days and aggregates up to 14.69" (373mm) of snow.Daylight
In Atco, the average length of the day in May is 14h and 33min.On the first day of the month, sunrise is at 5:55 am and sunset at 7:58 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:27 pm EDT.
Sunshine
The average sunshine in May is 7.8h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Atco have in May?
When are sunrise and sunset in May in Atco?
How many hours of sunshine does Atco have in May?
What are the months with the highest UV index?
How high is the UV index in May?
Average temperature in May
Atco, PA
- Average high temperature in May: 67.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in May: 47.1°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Atco, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Atco, PA
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Atco, PA
- Average humidity in May: 79%
The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in May
Atco, PA
- Average rainfall in May: 1.97"
The wettest months (with the highest rainfall) are July and August (2.09").
The driest months (with the least rainfall) are January and September (1.14").
Average rainfall days in May
Atco, PA
- Average rainfall days in May: 15.6 days
The month with the highest number of rainy days is May (15.6 days).
The months with the least rainy days are January and February (6.9 days).
Average snowfall in May
Atco, PA
- Average snowfall in May: 0.2"
The months with the highest snowfall are January and December (3.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Atco, PA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Atco, PA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 7h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in May
Atco, PA
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in May
Atco, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Atco, PA
- Average cloud cover in May: 52
The months with the most cloud cover are February and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in May
Atco, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Atco, Pennsylvania, USA
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