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
May's arrival brings a change in high-temperatures, moving from a moderate 59.5°F (15.3°C) in April to a pleasant 70.2°F (21.2°C). In the month of May, McAlisterville experiences an average low-temperature of 50.2°F (10.1°C).Humidity
In May, the average relative humidity is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 17.7 days and accumulates 3.11" (79mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in McAlisterville, Pennsylvania. During 0.1 snowfall days, in May, McAlisterville aggregates 0.2" (5mm) of snow. Throughout the year, there are 32.9 snowfall days, and 13.94" (354mm) of snow is accumulated.Daylight
In McAlisterville, the average length of the day in May is 14h and 28min.On the first day of May, sunrise is at 6:06 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:40 am and sunset at 8:33 pm EDT.
Sunshine
The average sunshine in May is 8.3h.UV index
May through July, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 6 suggests these recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May in McAlisterville?
What is the rainiest month?
How many days does it rain in May?
What is the last month it snows in McAlisterville?
What is the average length of the day in May in McAlisterville?
When are sunrise and sunset in May?
How many hours of sunshine does McAlisterville have in May?
When is the highest UV index?
What is the UV index reading in May?
Average temperature in May
McAlisterville, PA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 50.2°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in May
McAlisterville, 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 (29.95"Hg).
Average wind speed in May
McAlisterville, PA
- Average wind speed in May: 5.9mph
The windiest months (with the highest average wind speed) are March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in May
McAlisterville, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
McAlisterville, PA
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (2.01").
Average rainfall days in May
McAlisterville, PA
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in May
McAlisterville, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is February (3.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
McAlisterville, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
McAlisterville, PA
- Average daylight in May: 14h and 3min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).
Average sunshine days in May
McAlisterville, PA
- Average sunshine days in May: 11.3 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in May
McAlisterville, 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
McAlisterville, PA
- Average cloud cover in May: 48
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
McAlisterville, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, July, November and December (6mi).
The months with the lowest visibility are January, February, May, August, September and October (5mi).
McAlisterville, Pennsylvania, USA
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