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 a tropical 92.7°F (33.7°C) in August to a warm 84.4°F (29.1°C). An average nighttime temperature of 65.1°F (18.4°C) is noted in Spencer during the month of September.Heat index
September's heat index is estimated at a hot 89.6°F (32°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the feeling of heat when considering both air temperature and humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In Spencer, the average relative humidity in September is 66%.Rainfall
In Spencer, in September, it is raining for 11.6 days, with typically 2.17" (55mm) of accumulated precipitation. In Spencer, during the entire year, the rain falls for 113.6 days and collects up to 18.9" (480mm) of precipitation.Snowfall
May through October are months without snowfall in Spencer.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:14 pm CDT.
Sunshine
The average sunshine in September in Spencer is 8.6h.UV index
The average daily maximum UV index in September in Spencer is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
How hot is it in Spencer in September?
What is the average humidity in September in Spencer?
How many days does it rain in September in Spencer?
When it does not snow in Spencer?
What is the average length of the day in September in Spencer?
What time are sunrise and sunset in September in Spencer?
How long on average sun shines in September in Spencer?
How high is the UV index in September in Spencer?
Average temperature in September
Spencer, OK
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 65.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (32°F).
Average pressure in September
Spencer, 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 (29.88"Hg).
Average wind speed in September
Spencer, OK
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.4mph).
Average humidity in September
Spencer, OK
- Average humidity in September: 66%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Spencer, OK
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.03").
The driest months (with the least rainfall) are January and February (0.71").
Average rainfall days in September
Spencer, OK
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Spencer, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.02").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Spencer, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
Spencer, 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 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Spencer, OK
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is January (24.7 days).
The month with the least sunshine days is May (14.6 days).
Average UV index in September
Spencer, 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
Spencer, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Spencer, 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).
Spencer, Oklahoma, USA
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