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
Lower Allen's transition into May is marked by a temperature shift, moving from a refreshing 59.9°F (15.5°C) in April to a pleasant 70.2°F (21.2°C). An average low-temperature of 51.8°F (11°C) marks the month of May in Lower Allen.Humidity
The months with the highest humidity are February and May, with an average relative humidity of 80%.Rainfall
The months with the most rainfall are May and August, with an average 2.09" (53mm) of precipitation.Snowfall
May through October are months without snowfall in Lower Allen.Daylight
In Lower Allen, Pennsylvania, the average length of the day in May is 14h and 26min.On the first day of May in Lower Allen, sunrise is at 6:06 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:30 pm EDT.
Sunshine
In Lower Allen, the average sunshine in May is 8.5h.UV index
The months with the highest UV index in Lower Allen, Pennsylvania, are May through July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during May translates into these guidelines:
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. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
What are the temperatures in Lower Allen in May?
What are the most humid months in Lower Allen?
What is the average humidity in May in Lower Allen?
What is the rainiest month in Lower Allen?
How much does it rain in Lower Allen in May?
When it does not snow in Lower Allen?
Does it snow in Lower Allen in May?
What is the average length of the day in May in Lower Allen?
What time are sunrise and sunset in May in Lower Allen?
How long on average sun shines in May in Lower Allen?
What is the month with the highest UV index in Lower Allen?
What is the UV index intensity in May in Lower Allen?
Average temperature in May
Lower Allen, PA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in May: 51.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in May
Lower Allen, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Lower Allen, PA
- Average wind speed in May: 6.4mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
Lower Allen, PA
- Average humidity in May: 80%
The months with the highest relative humidity are February and May (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Lower Allen, PA
- Average rainfall in May: 2.09"
The wettest months (with the highest rainfall) are May and August (2.09").
The driest months (with the least rainfall) are January and September (1.3").
Average rainfall days in May
Lower Allen, PA
- Average rainfall days in May: 17 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in May
Lower Allen, PA
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Lower Allen, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Lower Allen, 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 3min
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 30min).
Average sunshine days in May
Lower Allen, PA
- Average sunshine days in May: 12 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (12 days).
Average UV index in May
Lower Allen, PA
- Average UV index in May: 6
The months with the highest UV index are May, June and July (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
Lower Allen, PA
- Average cloud cover in May: 46
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in May
Lower Allen, 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).
Lower Allen, Pennsylvania, USA
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