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
Twin Rocks in May sees a temperature change, with average high-temperatures moving from a mild 56.8°F (13.8°C) in April to an agreeable 68.2°F (20.1°C). Twin Rocks, during the month of May, experiences an average low-temperature of 49.1°F (9.5°C).Humidity
In May, the average relative humidity is 80%.Rainfall
May is the month with the most rainfall. Rain falls for 20.7 days and accumulates 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 0.7 snowfall days, in May, Twin Rocks aggregates 0.31" (8mm) of snow. In Twin Rocks, Pennsylvania, during the entire year, snow falls for 65.6 days and aggregates up to 33.54" (852mm) of snow.Daylight
In May, the average length of the day in Twin Rocks is 14h and 27min.On the first day of May, sunrise is at 6:13 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:39 pm EDT.
Sunshine
The average sunshine in May is 8.3h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Enhance your sun protection with tightly woven, yet airy clothing. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May in Twin Rocks?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Twin Rocks have in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Twin Rocks, PA
- Average high temperature in May: 68.2°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 49.1°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Twin Rocks, PA
- Average pressure in May: 30"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
Twin Rocks, PA
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Twin Rocks, PA
- Average humidity in May: 80%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in May
Twin Rocks, PA
- Average rainfall in May: 3.58"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in May
Twin Rocks, PA
- Average rainfall days in May: 20.7 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in May
Twin Rocks, PA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (8.27").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Twin Rocks, PA
- Average snowfall days in May: 0.7 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Twin Rocks, 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 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Twin Rocks, PA
- Average sunshine days in May: 8.9 days
The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.5 days).
Average UV index in May
Twin Rocks, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Twin Rocks, PA
- Average cloud cover in May: 50
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in May
Twin Rocks, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Twin Rocks, Pennsylvania, USA
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