Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Union City's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's warm 75.7°F (24.3°C) to an agreeable 70.2°F (21.2°C). During September nights, Union City witnesses a consistent average temperature of 53.4°F (11.9°C).Humidity
The average relative humidity in September is 81%.Rainfall
The month with the least rainfall is September, when the rain falls for 16.3 days and typically collects 2.64" (67mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Union City is 12h and 28min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:02 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Union City have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Union City have in September?
What is the UV index reading in September?
Average temperature in September
Union City, PA
- Average high temperature in September: 70.2°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 September: 53.4°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 September
Union City, PA
- Average pressure in September: 30.05"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 September
Union City, PA
- Average wind speed in September: 6.8mph
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 September
Union City, PA
- Average humidity in September: 81%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (80%).
Average rainfall in September
Union City, PA
- Average rainfall in September: 2.64"
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 September
Union City, PA
- Average rainfall days in September: 16.3 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 September
Union City, PA
- Average snowfall in September: 0"
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 September
Union City, PA
- Average snowfall days in September: 0 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 September /
Average sunshine in September
Union City, PA
- Average daylight in September: 12h and 3min
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 September: 8h and 1min
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 September
Union City, PA
- Average sunshine days in September: 10.5 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 September
Union City, PA
- Average UV index in September: 3
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 September
Union City, PA
- Average cloud cover in September: 40
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 September
Union City, PA
- Average visibility in September: 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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