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
May's arrival sees a rise in the average high-temperature, jumping from April's cool 54.1°F (12.3°C) to an enjoyable 67.1°F (19.5°C). During May, Duncan records an average temperature of 46.4°F (8°C) at night.Humidity
In May, the average relative humidity is 79%.Rainfall
In Duncan, in May, during 17.2 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. Throughout the year, there are 161.9 rainfall days, and 20.04" (509mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, Duncan aggregates 0.04" (1mm) of snow. In Duncan, during the entire year, snow falls for 71.4 days and aggregates up to 16.54" (420mm) of snow.Daylight
In Duncan, the average length of the day in May is 14h and 33min.On the first day of May, sunrise is at 6:04 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:36 pm EDT.
Sunshine
In May, the average sunshine in Duncan is 8.2h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 5 in May translates into these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Frequently asked questions
What are May temperatures in Duncan?
What is the average humidity in May in Duncan?
How much does it rain in Duncan in May?
What is the last month it snows in Duncan?
What is the average length of the day in May in Duncan?
What time are sunrise and sunset in May in Duncan?
How many hours of sunshine does Duncan have in May?
What are the months with the highest UV index in Duncan?
How high is the UV index in May in Duncan?
Average temperature in May
Duncan, PA
- Average high temperature in May: 67.1°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in May: 46.4°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in May
Duncan, PA
- 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
Duncan, PA
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Duncan, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in May
Duncan, PA
- Average rainfall in May: 2.01"
The wettest month (with the highest rainfall) is April (2.24").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in May
Duncan, PA
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in May
Duncan, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Duncan, PA
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Duncan, PA
- Average daylight in May: 14h and 4min
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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in May
Duncan, PA
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in May
Duncan, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Duncan, PA
- Average cloud cover in May: 51
The months with the most cloud cover are January and December (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in May
Duncan, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
Duncan, Pennsylvania, USA
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