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 average high-temperature increases in May, moving from a moderate 58.8°F (14.9°C) in April to a pleasant 68.7°F (20.4°C). May nights experience a consistent temperature drop to a cool 50.7°F (10.4°C).Humidity
February, May, June and October, with an average relative humidity of 81%, are the most humid months.Rainfall
The months with the most rainfall in Grantville, Pennsylvania, are May and July, with an average 3.58" (91mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Grantville aggregates 0.2" (5mm) of snow. In Grantville, during the entire year, snow falls for 32.4 days and aggregates up to 16.69" (424mm) of snow.Daylight
The average length of the day in May in Grantville is 14h and 26min.On the first day of May in Grantville, sunrise is at 6:04 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 8:30 pm EDT.
Sunshine
In May, the average sunshine in Grantville is 8h.UV index
In Grantville, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In May, a regular UV index of 5 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
What is the usual temperature for Grantville in May?
What is the most humid month in Grantville?
What is the average humidity in May in Grantville?
What is the rainiest month in Grantville?
How many days does it rain in May in Grantville?
What is the last month it snows in Grantville?
How many hours of daylight does Grantville have in May?
When are sunrise and sunset in May in Grantville?
How many hours of sunshine does Grantville have in May?
What is the UV index intensity in May in Grantville?
Average temperature in May
Grantville, PA
- Average high temperature in May: 68.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 50.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
Grantville, 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
Grantville, PA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Grantville, PA
- Average humidity in May: 81%
The months with the highest relative humidity are February, May, June and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Grantville, PA
- Average rainfall in May: 3.58"
The wettest months (with the highest rainfall) are May and July (3.58").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in May
Grantville, PA
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
Grantville, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Grantville, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Grantville, 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 18min).
- Average sunshine in May: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in May
Grantville, PA
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in May
Grantville, PA
- Average UV index in May: 5
The month with the highest UV index is June (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
Grantville, PA
- Average cloud cover in May: 49
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Grantville, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, July and November (6mi).
The months with the lowest visibility are January, February, May, August, September, October and December (5mi).
Grantville, Pennsylvania, USA
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