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 92.1°F (33.4°C) in August to a warm 85.1°F (29.5°C). September nights observe an average temperature dip to a comfortable 64.6°F (18.1°C).Heat index
For September, the heat index is computed to be a tropical 93.2°F (34°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
The average relative humidity in September in Alderson is 70%.Rainfall
In Alderson, in September, it is raining for 12 days, with typically 2.01" (51mm) of accumulated precipitation. In Alderson, Oklahoma, during the entire year, the rain falls for 128.5 days and collects up to 24.25" (616mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Alderson, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:48 pm. On the last day of September, in Alderson, sunrise is at 7:17 am and sunset at 7:07 pm CDT.
Sunshine
The average sunshine in September in Alderson is 9h.UV index
The average daily maximum UV index in September in Alderson is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Act with care - The need to guard against sun damage is communicated. It's recommended to limit sun exposure when its radiation is at its peak during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
How hot does it get in Alderson in September?
What is the average humidity in September in Alderson?
How much does it rain in Alderson in September?
When it does not snow in Alderson?
How many hours of daylight does Alderson have in September?
What time are sunrise and sunset in September in Alderson?
How long on average sun shines in September in Alderson?
What is the UV index intensity in September in Alderson?
Average temperature in September
Alderson, OK
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in September
Alderson, OK
- Average pressure in September: 29.99"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
Alderson, OK
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in September
Alderson, OK
- Average humidity in September: 70%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Alderson, OK
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in September
Alderson, OK
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in September
Alderson, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Alderson, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Alderson, 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 54min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Alderson, OK
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is July (14.4 days).
Average UV index in September
Alderson, OK
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Alderson, OK
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Alderson, 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).
Alderson, Oklahoma, USA
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