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
May sees a temperature increase, moving from a cool 53.2°F (11.8°C) in April to a comfortable 65.8°F (18.8°C). Union City records an average nighttime low-temperature of 47.7°F (8.7°C) throughout May.Humidity
The least humid month is May, with an average relative humidity of 80%.Rainfall
In Union City, during May, the rain falls for 19 days and regularly aggregates up to 3.39" (86mm) of precipitation. In Union City, during the entire year, the rain falls for 176.8 days and collects up to 37.36" (949mm) of precipitation.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
In May, the average length of the day 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
The months with the highest UV index in Union City are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The average daily UV index of 5 in May transforms into the following instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the least humid month?
What is the average humidity in May in Union City?
How much does it rain in Union City in May?
What is the last month it snows?
What is the average length of the day in May in Union City?
When is the sunrise / sunset in May?
How long on average sun shines in May?
What are the months with 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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