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 shift into May is characterized by a rise in the average high-temperature, transitioning from April's refreshing 61.2°F (16.2°C) to a pleasant 72.3°F (22.4°C). Walther registers a consistent average low-temperature of 51.4°F (10.8°C) during May.Humidity
The average relative humidity in May in Walther is 77%.Rainfall
May is the month with the most rainfall in Walther, Pennsylvania. Rain falls for 21.5 days and accumulates 3.66" (93mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Walther aggregates 0.08" (2mm) of snow. In Walther, during the entire year, snow falls for 60 days and aggregates up to 23.31" (592mm) of snow.Daylight
In May, the average length of the day is 14h and 26min.On the first day of May, sunrise is at 6:18 am and sunset at 8:16 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 8:43 pm EDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
The months with the highest UV index in Walther are May through July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily maximum UV index of 6 in May interprets into the following advice:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Walther?
What is the average humidity in May in Walther?
What is the wettest month in Walther?
How many days does it rain in May in Walther?
What is the last month it snows in Walther?
What is the average length of the day in May in Walther?
When are sunrise and sunset in May in Walther?
How many hours of sunshine does Walther have in May?
When is the highest UV index in Walther?
What is the UV index intensity in May in Walther?
Average temperature in May
Walther, PA
- Average high temperature in May: 72.3°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in May: 51.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in May
Walther, 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
Walther, PA
- Average wind speed in May: 6mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in May
Walther, PA
- Average humidity in May: 77%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in May
Walther, PA
- Average rainfall in May: 3.66"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in May
Walther, PA
- Average rainfall days in May: 21.5 days
The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in May
Walther, PA
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (5.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Walther, PA
- Average snowfall days in May: 0.2 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
Walther, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in May
Walther, PA
- Average sunshine days in May: 8.6 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is January (7.7 days).
Average UV index in May
Walther, PA
- Average UV index in May: 6
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Walther, PA
- Average cloud cover in May: 44
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Walther, PA
- Average visibility in May: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
Walther, Pennsylvania, USA
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