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 sees a rise in the average high-temperature, jumping from April's comfortable 61.2°F (16.2°C) to an agreeable 71.1°F (21.7°C). South Mountain experiences an average low-temperature of 51.8°F (11°C) in the month of May.Humidity
The months with the highest humidity in South Mountain are February, May and October, with an average relative humidity of 80%.Rainfall
The month with the most rainfall in South Mountain is May, when the rain falls for 14.9 days and typically aggregates up to 1.26" (32mm) of precipitation.Snowfall
In South Mountain, snow does not fall in May through October.Daylight
The average length of the day in May is 14h and 23min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:04 pm. On the last day of May, sunrise is at 5:43 am and sunset at 8:31 pm EDT.
Sunshine
In South Mountain, the average sunshine in May is 8.4h.UV index
In South Mountain, Pennsylvania, the average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: An average UV index of 5 in May transforms into this advice:
Exercise prevention - Protecting skin and eyes from harm is required. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the temperature in May in South Mountain?
What is the most humid month in South Mountain?
What is the average humidity in May in South Mountain?
What is the wettest month in South Mountain?
How much does it rain in South Mountain in May?
When it does not snow in South Mountain?
Does it snow in South Mountain in May?
How many hours of daylight does South Mountain have in May?
What time are sunrise and sunset in May in South Mountain?
How many hours of sunshine does South Mountain have in May?
What is the UV index reading in May in South Mountain?
Average temperature in May
South Mountain, PA
- Average high temperature in May: 71.1°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 (35.4°F).
- Average low temperature in May: 51.8°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in May
South Mountain, 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
South Mountain, PA
- Average wind speed in May: 6.1mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
South Mountain, PA
- Average humidity in May: 80%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is July (75%).
Average rainfall in May
South Mountain, PA
- Average rainfall in May: 1.26"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in May
South Mountain, PA
- Average rainfall days in May: 14.9 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in May
South Mountain, PA
- Average snowfall in May: 0"
The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
South Mountain, PA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
South Mountain, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
South Mountain, PA
- Average sunshine days in May: 12.9 days
The month with the most sunshine days is November (21.7 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in May
South Mountain, PA
- Average UV index in May: 5
The months with the highest UV index are 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
South Mountain, PA
- Average cloud cover in May: 47
The months with the most cloud cover are January and February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
South Mountain, 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).
South Mountain, Pennsylvania, USA
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