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
With the onset of September, the average high-temperature subtly recedes from August's hot 90.7°F (32.6°C) to a warm 83.3°F (28.5°C). Terlton, in September, witnesses an average low-temperature of 63.7°F (17.6°C).Heat index
For most parts of September, the heat index is calculated to be a hot 89.6°F (32°C). With constant exposure and activity, a state of weariness might ensue, leading to potential heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In Terlton, the average relative humidity in September is 69%.Rainfall
In September, the rain falls for 12.1 days. Throughout September, 3.31" (84mm) of precipitation is accumulated. Throughout the year, there are 128.9 rainfall days, and 27.72" (704mm) of precipitation is accumulated.Snowfall
In Terlton, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:58 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:10 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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 many days does it rain in September?
When it does not snow?
How many hours of daylight does Terlton have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Terlton have in September?
What is the UV index reading in September?
Average temperature in September
Terlton, OK
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in September
Terlton, OK
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Terlton, OK
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.6mph).
Average humidity in September
Terlton, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and October (66%).
Average rainfall in September
Terlton, OK
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is May (4.92").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Terlton, OK
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Terlton, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.57").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Terlton, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Terlton, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Terlton, OK
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in September
Terlton, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Terlton, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Terlton, 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).
Terlton, Oklahoma, USA
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