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 arrival of May brings a temperature shift, with the average high-temperature escalating from a mild 60.3°F (15.7°C) in April to a pleasant 70.9°F (21.6°C). During the month of May, the temperature in Downingtown falls to an average of 52.3°F (11.3°C).Humidity
February, May and October, with an average relative humidity of 80%, are the most humid months.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 2.6" (66mm) of precipitation is accumulated. In Downingtown, during the entire year, the rain falls for 145.6 days and collects up to 26.81" (681mm) of precipitation.Snowfall
Months with snowfall in Downingtown are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Downingtown aggregates 0.12" (3mm) of snow. Throughout the year, there are 17.2 snowfall days, and 10.47" (266mm) of snow is accumulated.Daylight
In Downingtown, the average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 6:01 am and sunset at 7:57 pm. On the last day of May, in Downingtown, sunrise is at 5:36 am and sunset at 8:25 pm EDT.
Sunshine
In Downingtown, the average sunshine in May is 8.3h.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 hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In May, a regular UV index of 6 translates into these guidelines:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What are the temperatures in Downingtown in May?
What is the most humid month in Downingtown?
What is the average humidity in May in Downingtown?
How many days does it rain in May in Downingtown?
What is the last month it snows in Downingtown?
What is the average length of the day in May in Downingtown?
What time are sunrise and sunset in May in Downingtown?
How long on average sun shines in May in Downingtown?
When is the highest UV index in Downingtown?
What is the UV index reading in May in Downingtown?
Average temperature in May
Downingtown, PA
- Average high temperature in May: 70.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in May
Downingtown, 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
Downingtown, PA
- Average wind speed in May: 6.5mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in May
Downingtown, PA
- Average humidity in May: 80%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Downingtown, PA
- Average rainfall in May: 2.6"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in May
Downingtown, PA
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in May
Downingtown, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Downingtown, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Downingtown, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in May
Downingtown, PA
- Average sunshine days in May: 12.3 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in May
Downingtown, 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
Downingtown, PA
- Average cloud cover in May: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Downingtown, 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).
Downingtown, Pennsylvania, USA
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