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 implies a soft temperature shift, with average high-temperatures reducing from August's 93.9°F (34.4°C) to a still hot 86.7°F (30.4°C). Spencerville experiences a mean temperature of 66°F (18.9°C) during September nights.Heat index
September's average heat index is evaluated at a very hot 96.8°F (36°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
In September, the average relative humidity in Spencerville is 68%.Rainfall
In Spencerville, during September, the rain falls for 12 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Spencerville, during the entire year, the rain falls for 143.9 days and collects up to 36.61" (930mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Spencerville, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:55 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:06 pm CDT.
Sunshine
In Spencerville, Oklahoma, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 6 translates into these guidelines:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
Is it hot in Spencerville during September?
What is the average humidity in September in Spencerville?
How many days does it rain in September in Spencerville?
When it does not snow in Spencerville?
How many hours of daylight does Spencerville have in September?
When is the sunrise / sunset in September in Spencerville?
How many hours of sunshine does Spencerville have in September?
How high is the UV index in September in Spencerville?
Average temperature in September
Spencerville, OK
- Average high temperature in September: 86.7°F
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (51.4°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Spencerville, 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 (29.91"Hg).
Average wind speed in September
Spencerville, OK
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are March and April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Spencerville, OK
- Average humidity in September: 68%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Spencerville, OK
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is May (4.8").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Spencerville, OK
- Average rainfall days in September: 12 days
The months with the highest number of rainy days are March and May (14.6 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in September
Spencerville, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Spencerville, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Spencerville, 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: 8h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Spencerville, OK
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is May (14.5 days).
Average UV index in September
Spencerville, OK
- Average UV index in September: 6
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
Spencerville, OK
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Spencerville, 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).
Spencerville, Oklahoma, USA
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