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
Entering May, Christiana sees a temperature rise, with the average high-temperature advancing from April's refreshing 60.3°F (15.7°C) to an agreeable 70.3°F (21.3°C). During May nights, Christiana witnesses a consistent average temperature of 52.7°F (11.5°C).Humidity
May and October, with an average relative humidity of 81%, are the most humid months.Rainfall
In May, in Christiana, Pennsylvania, the rain falls for 15.9 days. Throughout May, 1.85" (47mm) of precipitation is accumulated. In Christiana, during the entire year, the rain falls for 138.3 days and collects up to 19.76" (502mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Christiana aggregates 0.12" (3mm) of snow. Throughout the year, there are 19.6 snowfall days, and 7.64" (194mm) of snow is accumulated.Daylight
In Christiana, the average length of the day in May is 14h and 24min.On the first day of May, sunrise is at 6:03 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:26 pm EDT.
Sunshine
The average sunshine in May in Christiana is 8.1h.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 unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 6 in May translates into this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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 in Christiana?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Christiana have in May?
What is the month with the highest UV index?
What is the UV index intensity in May?
Average temperature in May
Christiana, PA
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Christiana, 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
Christiana, PA
- Average wind speed in May: 6.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Christiana, PA
- Average humidity in May: 81%
The months with the highest relative humidity are May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Christiana, PA
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in May
Christiana, PA
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in May
Christiana, PA
- 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 and September (0").
Average snowfall days in May
Christiana, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Christiana, PA
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Christiana, PA
- Average sunshine days in May: 13 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in May
Christiana, 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, March, November and December (UV index 2).
Average cloud cover in May
Christiana, PA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Christiana, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Christiana, Pennsylvania, USA
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