May weather forecast
West Grove, PA

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Weather in May

The last month of the spring, May, is a pleasant month in West Grove, Pennsylvania, with an average temperature ranging between max 70.9°F (21.6°C) and min 53.6°F (12°C).

Temperature

The shift from April to May sees an increase in the average high-temperature, transitioning from a comfortable 61.2°F (16.2°C) to an agreeable 70.9°F (21.6°C). Throughout May, an average nighttime temperature of 53.6°F (12°C) is experienced.

Humidity

The months with the highest humidity in West Grove, Pennsylvania, are February, May, September, October and December, with an average relative humidity of 79%.

Rainfall

In West Grove, in May, during 13.9 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. In West Grove, during the entire year, the rain falls for 126.3 days and collects up to 14.25" (362mm) of precipitation.

Snowfall

January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, West Grove aggregates 0.12" (3mm) of snow. Throughout the year, there are 15.4 snowfall days, and 4.33" (110mm) of snow is accumulated.

Daylight

The average length of the day in May is 14h and 23min.
On the first day of May, sunrise is at 6:02 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:25 pm EDT.

Sunshine

In West Grove, the average sunshine in May is 8.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 6 in May interprets into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

What are May temperatures in West Grove?

May temperatures vary between a high-temperature of 70.9°F (21.6°C) and a low-temperature of 53.6°F (12°C).

What is the most humid month?

The months with the highest humidity are February, May, September, October and December, with an average relative humidity of 79%.

What is the average humidity in May?

In May, the average relative humidity is 79%.

How many days does it rain in May?

In May, the rain falls for 13.9 days. Throughout May, 1.42" (36mm) of precipitation is accumulated.

What is the last month it snows in West Grove?

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

How many hours of daylight does West Grove have in May?

In May, the average day length is 14h and 23min.

What time are sunrise and sunset in May?

In May, on the first day of the month, sunrise is at 6:02 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:25 pm EDT.

How long on average sun shines in May?

In West Grove, the average sunshine duration in May is 8.5h.

When is the highest UV index?

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 West Grove, the average daily maximum UV index in May is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
West Grove, PA

Average temperature in May - West Grove, PA
  • Average high temperature in May: 70.9°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in May: 53.6°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).

Average pressure in May
West Grove, PA

Average pressure in May - West Grove, 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
West Grove, PA

Average wind speed in May - West Grove, PA
  • Average wind speed in May: 6.7mph

The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

Average humidity in May
West Grove, PA

Average humidity in May - West Grove, PA
  • Average humidity in May: 79%

The months with the highest relative humidity are February, May, September, October and December (79%).
The months with the lowest relative humidity are March and April (75%).

Average rainfall in May
West Grove, PA

Average rainfall in May - West Grove, PA
  • Average rainfall in May: 1.42"

The wettest month (with the highest rainfall) is August (1.93").
The driest months (with the least rainfall) are January, September and November (0.87").

Average rainfall days in May
West Grove, PA

Average rainfall days in May - West Grove, PA
  • Average rainfall days in May: 13.9 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in May
West Grove, PA

Average snowfall in May - West Grove, PA
  • Average snowfall in May: 0.12"

The month with the highest snowfall is March (1.26").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in May
West Grove, PA

Average snowfall days in May - West Grove, PA
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
West Grove, PA

Average daylight in May / Average sunshine in May - West Grove, PA
  • Average daylight in May: 14h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in May: 8h and 3min

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
West Grove, PA

Average sunshine days in May - West Grove, PA
  • Average sunshine days in May: 14.4 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12.9 days).

Average UV index in May
West Grove, PA

Average UV index in May - West Grove, 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, November and December (UV index 2).

Average cloud cover in May
West Grove, PA

Average cloud cover in May - West Grove, PA
  • Average cloud cover in May: 46

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).

Average visibility in May
West Grove, PA

Average visibility in May - West Grove, PA
  • Average visibility in May: 5mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

West Grove, Pennsylvania, USA

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