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 comes with a mild decrease in the average high-temperature, moving subtly from a hot 90.1°F (32.3°C) in August to a warm 83.3°F (28.5°C). Watson records an average nighttime low-temperature of 62.6°F (17°C) throughout September.Heat index
The average heat index in September is computed to be a tropical 89.6°F (32°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In Watson, the average relative humidity in September is 73%.Rainfall
In Watson, during September, the rain falls for 14.2 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, in Watson, there are 164 rainfall days, and 40.12" (1019mm) of precipitation is accumulated.Snowfall
In Watson, snow does not fall in April through October.Daylight
In Watson, Oklahoma, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:52 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 7:03 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September in Watson?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Watson, OK
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in September: 62.6°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Watson, OK
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Watson, OK
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Watson, OK
- Average humidity in September: 73%
The months with the highest relative humidity are February and March (79%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Watson, OK
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is January (2.28").
Average rainfall days in September
Watson, OK
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in September
Watson, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Watson, 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 April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Watson, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Watson, OK
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (9.7 days).
Average UV index in September
Watson, OK
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Watson, OK
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June, August and September (Cloud cover 29).
Average visibility in September
Watson, OK
- Average visibility in September: 6mi
The months with the highest visibility are March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, May and December (5mi).
Watson, Oklahoma, USA
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