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 brings an increase in the average high-temperature, moving from a fresh 53.2°F (11.8°C) in April to an enjoyable 65.8°F (18.8°C). Throughout the month of May, Union City witnesses an average low-temperature of 47.7°F (8.7°C).Humidity
With an average relative humidity of 80%, May is the least humid month.Rainfall
In Union City, during May, the rain falls for 19 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, there are 176.8 rainfall days, and 37.36" (949mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.9 snowfall days, in May, Union City aggregates 0.28" (7mm) of snow. Throughout the year, there are 89.6 snowfall days, and 48.78" (1239mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 34min.On the first day of the month, sunrise is at 6:14 am and sunset at 8:18 pm. On the last day of May, sunrise is at 5:46 am and sunset at 8:47 pm EDT.
Sunshine
The average sunshine in May is 8.5h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in May translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the least humid month?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows in Union City?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Union City have in May?
When is the highest UV index?
How high is the UV index in May?
Average temperature in May
Union City, PA
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in May: 47.7°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in May
Union City, PA
- Average pressure in May: 29.99"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
Union City, PA
- Average wind speed in May: 7.4mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity in May
Union City, PA
- Average humidity in May: 80%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (80%).
Average rainfall in May
Union City, PA
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (2.64").
Average rainfall days in May
Union City, PA
- Average rainfall days in May: 19 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in May
Union City, PA
- Average snowfall in May: 0.28"
The month with the highest snowfall is December (12.01").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Union City, PA
- Average snowfall days in May: 0.9 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Union City, PA
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in May
Union City, PA
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is October (10.9 days).
The month with the least sunshine days is January (5.4 days).
Average UV index in May
Union City, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Union City, PA
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in May
Union City, PA
- Average visibility in May: 5mi
The month with the highest visibility is October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Union City, Pennsylvania, USA
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