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
The beginning of May signals a rise in the average high-temperature, moving from a mild 56.8°F (13.8°C) in April to a comfortable 67.6°F (19.8°C). In Jennerstown, an average temperature of 48.9°F (9.4°C) is noted during May nights.Humidity
The average relative humidity in May is 81%.Rainfall
The month with the most rainfall is May, when the rain falls for 19.9 days and typically aggregates up to 3.23" (82mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Jennerstown aggregates 0.31" (8mm) of snow. Throughout the year, there are 56.8 snowfall days, and 27.6" (701mm) of snow is accumulated.Daylight
In Jennerstown, the average length of the day in May is 14h and 25min.On the first day of May in Jennerstown, sunrise is at 6:14 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 8:39 pm EDT.
Sunshine
In May, the average sunshine is 8.3h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in May?
What is the average humidity in May in Jennerstown?
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?
What time are sunrise and sunset in May?
How long on average sun shines in May?
What is the month with the highest UV index?
How high is the UV index in May?
Average temperature in May
Jennerstown, PA
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in May: 48.9°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 (18.5°F).
Average pressure in May
Jennerstown, 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
Jennerstown, PA
- Average wind speed in May: 7.3mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in May
Jennerstown, PA
- Average humidity in May: 81%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June and July (79%).
Average rainfall in May
Jennerstown, PA
- Average rainfall in May: 3.23"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in May
Jennerstown, PA
- Average rainfall days in May: 19.9 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in May
Jennerstown, PA
- Average snowfall in May: 0.31"
The month with the highest snowfall is January (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Jennerstown, PA
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Jennerstown, 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: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Jennerstown, PA
- Average sunshine days in May: 9.3 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in May
Jennerstown, 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
Jennerstown, 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 40).
Average visibility in May
Jennerstown, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Jennerstown, Pennsylvania, USA
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