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
Walston's transition into May is marked by a rise in the average high-temperature, advancing from a mild 56.8°F (13.8°C) in April to an agreeable 68.9°F (20.5°C). In Walston, an average low-temperature of 48.4°F (9.1°C) is recorded during May nights.Humidity
The average relative humidity in May in Walston, Pennsylvania, is 79%.Rainfall
In May, the rain falls for 18 days. Throughout May, 2.36" (60mm) of precipitation is accumulated. In Walston, Pennsylvania, during the entire year, the rain falls for 151.9 days and collects up to 22.13" (562mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.6 snowfall days, in May, Walston aggregates 0.55" (14mm) of snow. In Walston, during the entire year, snow falls for 71 days and aggregates up to 22.32" (567mm) of snow.Daylight
In May, the average length of the day is 14h and 29min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:46 am and sunset at 8:41 pm EDT.
Sunshine
In May, the average sunshine in Walston is 8.1h.UV index
The months with the highest UV index in Walston are May through August, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
What are May temperatures in Walston?
What is the average humidity in May in Walston?
How many days does it rain in May in Walston?
What is the last month it snows in Walston?
What is the average length of the day in May in Walston?
What time are sunrise and sunset in May in Walston?
How long on average sun shines in May in Walston?
What is the month with the highest UV index in Walston?
How high is the UV index in May in Walston?
Average temperature in May
Walston, PA
- Average high temperature in May: 68.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in May: 48.4°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in May
Walston, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Walston, PA
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Walston, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in May
Walston, PA
- Average rainfall in May: 2.36"
The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in May
Walston, PA
- Average rainfall days in May: 18 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in May
Walston, PA
- Average snowfall in May: 0.55"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Walston, PA
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Walston, PA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in May
Walston, PA
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in May
Walston, 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
Walston, PA
- Average cloud cover in May: 50
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in May
Walston, 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).
Walston, Pennsylvania, USA
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