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 start of May is characterized by an increase in the average high-temperature, transitioning from a refreshing 58.8°F (14.9°C) in April to an agreeable 68.7°F (20.4°C). West Jonestown reports an average nighttime low-temperature of 50.7°F (10.4°C) in May.Humidity
The months with the highest humidity are February, May, June and October, with an average relative humidity of 81%.Rainfall
The months with the most rainfall in West Jonestown are May and July, with an average 3.58" (91mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, West Jonestown aggregates 0.2" (5mm) of snow. Throughout the year, in West Jonestown, there are 32.4 snowfall days, and 16.69" (424mm) of snow is accumulated.Daylight
The average length of the day in May in West Jonestown is 14h and 26min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:01 pm. On the last day of May, in West Jonestown, sunrise is at 5:37 am and sunset at 8:29 pm EDT.
Sunshine
The average sunshine in May is 8h.UV index
In May, the average daily maximum UV index in West Jonestown, Pennsylvania, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
What are May temperatures in West Jonestown?
What are the most humid months in West Jonestown?
What is the average humidity in May in West Jonestown?
What is the wettest month in West Jonestown?
How much does it rain in West Jonestown in May?
What is the last month it snows in West Jonestown?
How many hours of daylight does West Jonestown have in May?
What time are sunrise and sunset in May in West Jonestown?
How many hours of sunshine does West Jonestown have in May?
What is the UV index reading in May in West Jonestown?
Average temperature in May
West Jonestown, PA
- Average high temperature in May: 68.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.6°F).
- Average low temperature in May: 50.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in May
West Jonestown, 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 (29.94"Hg).
Average wind speed in May
West Jonestown, PA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is March (8.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in May
West Jonestown, PA
- Average humidity in May: 81%
The months with the highest relative humidity are February, May, June and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
West Jonestown, PA
- Average rainfall in May: 3.58"
The wettest months (with the highest rainfall) are May and July (3.58").
The driest month (with the least rainfall) is September (2.32").
Average rainfall days in May
West Jonestown, PA
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in May
West Jonestown, PA
- Average snowfall in May: 0.2"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
West Jonestown, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
West Jonestown, 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 0min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in May
West Jonestown, PA
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in May
West Jonestown, PA
- Average UV index in May: 5
The month with the highest UV index is June (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
West Jonestown, PA
- Average cloud cover in May: 49
The months with the most cloud cover are February and December (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
West Jonestown, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, June, July and November (6mi).
The months with the lowest visibility are January, February, May, August, September, October and December (5mi).
West Jonestown, Pennsylvania, USA
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