May weather forecastAshbourne, PA
May
Weather in May
The last month of the spring, May, is a pleasant month in Ashbourne, Pennsylvania, with an average temperature fluctuating between 54.1°F (12.3°C) and 71.8°F (22.1°C).Temperature
In Ashbourne, stepping into May brings a temperature increase, moving up from April's comfortable 61.2°F (16.2°C) to an agreeable 71.8°F (22.1°C). An average nighttime temperature of 54.1°F (12.3°C) is witnessed throughout May.Humidity
In Ashbourne, the average relative humidity in May is 75%.Rainfall
In Ashbourne, in May, during 14.1 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, there are 122.4 rainfall days, and 12.68" (322mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Ashbourne, the average length of the day in May is 14h and 25min.On the first day of May, sunrise is at 5:59 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:33 am and sunset at 8:23 pm EDT.
Sunshine
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 reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In May, an average UV index of 6 transforms into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ashbourne, PA
- Average high temperature in May: 71.8°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in May: 54.1°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in May
Ashbourne, 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
Ashbourne, PA
- Average wind speed in May: 6.7mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
Ashbourne, PA
- Average humidity in May: 75%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in May
Ashbourne, PA
- Average rainfall in May: 1.18"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in May
Ashbourne, PA
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).
Average snowfall in May
Ashbourne, PA
- Average snowfall in May: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Ashbourne, PA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Ashbourne, PA
- Average daylight in May: 14h and 24min
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 36min
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 48min).
Average sunshine days in May
Ashbourne, PA
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in May
Ashbourne, 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
Ashbourne, PA
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Ashbourne, 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).
