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
The beginning of September brings a minor change in the average high-temperature, shifting from a tropical 93.4°F (34.1°C) in August to a warm 84.7°F (29.3°C). During the month of September, Union City's nighttime temperature lowers to an average of 65.8°F (18.8°C).Heat index
For September, the heat index is computed to be a hot 89.6°F (32°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.Realize that the values for the heat index are set for shaded places and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In September, the average relative humidity is 64%.Rainfall
In September, in Union City, the rain falls for 12.2 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. Throughout the year, there are 114.9 rainfall days, and 22.4" (569mm) of precipitation is accumulated.Snowfall
In Union City, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 7:04 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:16 pm CDT.
Sunshine
In Union City, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Union City, OK
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (94.3°F).
The months with the lowest average high temperature are January and December (49.1°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Union City, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Union City, OK
- Average wind speed in September: 8.9mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Union City, OK
- Average humidity in September: 64%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Union City, OK
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is December (0.83").
Average rainfall days in September
Union City, OK
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in September
Union City, OK
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.91").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Union City, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Union City, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Union City, OK
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in September
Union City, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Union City, OK
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Union City, OK
- 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, Oklahoma, USA
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