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 brings a rise in the average high-temperature, transitioning from April's moderate 56.3°F (13.5°C) to a comfortable 66.7°F (19.3°C). In Stoystown, the nighttime temperature averages to a frosty 48.7°F (9.3°C) during May.Humidity
In Stoystown, the average relative humidity in May is 81%.Rainfall
The month with the most rainfall in Stoystown is May, when the rain falls for 19.8 days and typically aggregates up to 3.27" (83mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Stoystown. During 0.6 snowfall days, in May, Stoystown aggregates 0.2" (5mm) of snow. In Stoystown, during the entire year, snow falls for 66 days and aggregates up to 32.36" (822mm) of snow.Daylight
The average length of the day in May is 14h and 25min.On the first day of May, sunrise is at 6:14 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:38 pm EDT.
Sunshine
In May, the average sunshine is 7.8h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 during May translates into the following guidance:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Stoystown in May?
What is the average humidity in May?
What is the wettest month?
How much does it rain in May?
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 long on average sun shines in May?
What are the months with the highest UV index?
What is the UV index reading in May?
Average temperature in May
Stoystown, PA
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 48.7°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in May
Stoystown, 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
Stoystown, PA
- Average wind speed in May: 7.6mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in May
Stoystown, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, June and July (80%).
Average rainfall in May
Stoystown, PA
- Average rainfall in May: 3.27"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in May
Stoystown, PA
- Average rainfall days in May: 19.8 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is November (8.2 days).
Average snowfall in May
Stoystown, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (8.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Stoystown, PA
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Stoystown, 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: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in May
Stoystown, PA
- Average sunshine days in May: 9.4 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is January (6.3 days).
Average UV index in May
Stoystown, 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
Stoystown, PA
- Average cloud cover in May: 53
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 42).
Average visibility in May
Stoystown, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Stoystown, Pennsylvania, USA
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