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
September's arrival signals a moderate reduction in the average high-temperature, easing from 82°F (27.8°C) in August to a still warm 75°F (23.9°C). During September, Union City records an average temperature of 61.7°F (16.5°C) at night.Humidity
The average relative humidity in September in Union City is 73%.Rainfall
The month with the least rainfall in Union City is September, when the rain falls for 12.5 days and typically collects 2.2" (56mm) of precipitation.Snowfall
In Union City, snow does not fall in May through October.Daylight
In Union City, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 6:23 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.
Sunshine
In Union City, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Union City, New Jersey, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Be vigilant - Preventing sunburn is recommended. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What are the temperatures in Union City in September?
What is the average humidity in September in Union City?
What is the driest month in Union City?
How much does it rain in Union City in September?
When it does not snow in Union City?
How many hours of daylight does Union City have in September?
When are sunrise and sunset in September in Union City?
How long on average sun shines in September in Union City?
How high is the UV index in September in Union City?
Average temperature in September
Union City, NJ
- Average high temperature in September: 75°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (36.3°F).
- Average low temperature in September: 61.7°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in September
Union City, NJ
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Union City, NJ
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Union City, NJ
- Average humidity in September: 73%
The months with the highest relative humidity are February and December (76%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Union City, NJ
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in September
Union City, NJ
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Union City, NJ
- Average snowfall in September: 0"
The month with the highest snowfall is March (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Union City, NJ
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Union City, NJ
- Average daylight in September: 12h 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 September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Union City, NJ
- Average sunshine days in September: 15 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in September
Union City, NJ
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Union City, NJ
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Union City, NJ
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Union City, New Jersey, USA
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