May weather forecast
Downingtown, PA

Weather in May

May, the last month of the spring in Downingtown, is a pleasant month, with an average temperature varying between 70.9°F (21.6°C) and 52.3°F (11.3°C).

Temperature

In Downingtown, the average high-temperature in May rises from a moderate 60.3°F (15.7°C) in April to a pleasant 70.9°F (21.6°C). In Downingtown, the average low-temperature is 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 Downingtown, in May, it is raining for 16.8 days, with typically 2.6" (66mm) of accumulated precipitation. 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, Pennsylvania, are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, Downingtown aggregates 0.12" (3mm) of snow. In Downingtown, during the entire year, snow falls for 17.2 days and aggregates up to 10.47" (266mm) of snow.

Daylight

The average length of the day in May in Downingtown is 14h and 25min.
On the first day of the month, sunrise is at 6:02 am and sunset at 7:57 pm. On the last day of May, sunrise is at 5:36 am and sunset at 8:24 pm EDT.

Sunshine

The average sunshine in May in Downingtown 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 vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in May in Downingtown?

In May, in Downingtown, the average high-temperature is 70.9°F (21.6°C), and the average low-temperature is 52.3°F (11.3°C).

What are the most humid months in Downingtown?

The months with the highest humidity in Downingtown are February, May and October, with an average relative humidity of 80%.

What is the average humidity in May in Downingtown?

In Downingtown, Pennsylvania, the average relative humidity in May is 80%.

How much does it rain in Downingtown in May?

In Downingtown, in May, it is raining for 16.8 days, with typically 2.6" (66mm) of accumulated precipitation.

What is the last month it snows in Downingtown?

May is the last month it regularly snows in Downingtown. During 0.1 snowfall days, in May, Downingtown aggregates 0.12" (3mm) of snow.

What is the average length of the day in May in Downingtown?

In May, the average day length in Downingtown is 14h and 25min.

When are sunrise and sunset in May in Downingtown?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 7:57 pm. On the last day of the month, in Downingtown, Pennsylvania, sunrise is at 5:36 am and sunset at 8:24 pm EDT.

How long on average sun shines in May in Downingtown?

In May, the average sunshine duration is 8.3h.

When is the highest UV index in Downingtown?

The months with the highest UV index are May through August, with an average maximum UV index of 6.

What is the UV index intensity in May in Downingtown?

The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Downingtown, PA

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).

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Average pressure in May
Downingtown, PA

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).

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Average wind speed in May
Downingtown, PA

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).

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Average humidity in May
Downingtown, PA

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%).

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Average rainfall in May
Downingtown, PA

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").

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Average rainfall days in May
Downingtown, PA

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).

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Average snowfall in May
Downingtown, PA

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").

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Average snowfall days in May
Downingtown, PA

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).

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Average daylight in May /
Average sunshine in May
Downingtown, PA

Average daylight in May / Average sunshine in May - Downingtown, PA
  • Average daylight in May: 14h and 25min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 23min).

  • Average sunshine in May: 8h and 18min

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).

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Average sunshine days in May
Downingtown, PA

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).

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Average UV index in May
Downingtown, PA

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).

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Average cloud cover in May
Downingtown, PA

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).

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Average visibility in May
Downingtown, PA

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).

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