May weather forecast
Coatesville, PA

Weather in May

May, the last month of the spring in Coatesville, is an agreeable month, with an average temperature fluctuating between 70.3°F (21.3°C) and 52.7°F (11.5°C).

Temperature

In May, the average high-temperature rises from a mild 60.3°F (15.7°C) in April to an agreeable 70.3°F (21.3°C). In May, the average low-temperature is 52.7°F (11.5°C).

Humidity

The months with the highest humidity in Coatesville are May and October, with an average relative humidity of 81%.

Rainfall

In Coatesville, Pennsylvania, during May, the rain falls for 15.9 days and regularly aggregates up to 1.85" (47mm) of precipitation. In Coatesville, Pennsylvania, 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, Coatesville 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 May, the average length of the day in Coatesville 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 8:25 pm EDT.

Sunshine

In Coatesville, the average sunshine in May 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 reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 most humid month in Coatesville?

May and October, with an average relative humidity of 81%, are most humid months.

What is the average humidity in May in Coatesville?

In May, the average relative humidity in Coatesville, Pennsylvania, is 81%.

How much does it rain in Coatesville in May?

In Coatesville, in May, it is raining for 15.9 days, with typically 1.85" (47mm) of accumulated precipitation.

What is the last month it snows in Coatesville?

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

How many hours of daylight does Coatesville have in May?

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

When are sunrise and sunset in May in Coatesville?

On the first day of May in Coatesville, Pennsylvania, sunrise is at 6:02 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:36 am and sunset at 8:25 pm EDT.

How many hours of sunshine does Coatesville have in May?

The average sunshine duration in May in Coatesville, Pennsylvania, is 8.1h.

When is the highest UV index in Coatesville?

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

What is the UV index reading in May in Coatesville?

The average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
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
Coatesville, PA

Average temperature in May - Coatesville, 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).

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Average pressure in May
Coatesville, PA

Average pressure in May - Coatesville, 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
Coatesville, PA

Average wind speed in May - Coatesville, 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).

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Average humidity in May
Coatesville, PA

Average humidity in May - Coatesville, 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%).

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Average rainfall in May
Coatesville, PA

Average rainfall in May - Coatesville, 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").

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Average rainfall days in May
Coatesville, PA

Average rainfall days in May - Coatesville, 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).

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Average snowfall in May
Coatesville, PA

Average snowfall in May - Coatesville, 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").

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Average snowfall days in May
Coatesville, PA

Average snowfall days in May - Coatesville, 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).

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

Average daylight in May / Average sunshine in May - Coatesville, 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 6min

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).

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Average sunshine days in May
Coatesville, PA

Average sunshine days in May - Coatesville, 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).

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Average UV index in May
Coatesville, PA

Average UV index in May - Coatesville, 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
Coatesville, PA

Average cloud cover in May - Coatesville, 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).

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Average visibility in May
Coatesville, PA

Average visibility in May - Coatesville, 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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