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
Lewisville's weather shows a temperature rise with the arrival of May, moving from a comfortable 61.5°F (16.4°C) in April to a pleasant 71.6°F (22°C). Lewisville encounters a steady low-temperature average of 54.7°F (12.6°C) throughout the month of May.Humidity
May, September and October, with an average relative humidity of 78%, are the most humid months.Rainfall
In Lewisville, in May, during 19 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Throughout the year, there are 168.9 rainfall days, and 34.84" (885mm) of precipitation is accumulated.Snowfall
Months with snowfall in Lewisville, Pennsylvania, are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Lewisville aggregates 0.12" (3mm) of snow. In Lewisville, during the entire year, snow falls for 18.1 days and aggregates up to 8.86" (225mm) of snow.Daylight
The average length of the day in May is 14h and 23min.On the first day of May in Lewisville, 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 Lewisville, the average sunshine in May is 8.7h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. 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. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What are the most humid months?
What is the average humidity in May?
How many days does it rain in May in Lewisville?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Lewisville have in May?
What are the months with the highest UV index?
What is the UV index reading in May in Lewisville?
Average temperature in May
Lewisville, PA
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in May: 54.7°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in May
Lewisville, 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
Lewisville, PA
- Average wind speed in May: 6.9mph
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 (5.3mph).
Average humidity in May
Lewisville, PA
- Average humidity in May: 78%
The months with the highest relative humidity are May, September and October (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Lewisville, PA
- Average rainfall in May: 3.15"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (2.24").
Average rainfall days in May
Lewisville, PA
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in May
Lewisville, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Lewisville, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.4 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
Lewisville, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in May
Lewisville, PA
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in May
Lewisville, 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
Lewisville, PA
- Average cloud cover in May: 45
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Lewisville, PA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Lewisville, Pennsylvania, USA
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