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 onset brings a slight change in high-temperatures, falling from a very hot 96.6°F (35.9°C) in August to a tropical 86.9°F (30.5°C). An average temperature of 68.4°F (20.2°C) is recorded during the nights in September.Heat index
During September, the heat index is evaluated at a tropical 93.2°F (34°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In September, the average relative humidity in Frederick is 59%.Rainfall
In Frederick, Oklahoma, in September, during 12 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, there are 102.6 rainfall days, and 20.55" (522mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Frederick.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:21 pm CDT.
Sunshine
The average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
Is it hot in Frederick during September?
What is the average humidity in September in Frederick?
How much does it rain in Frederick in September?
When it does not snow in Frederick?
How many hours of daylight does Frederick have in September?
When is the sunrise / sunset in September in Frederick?
How many hours of sunshine does Frederick have in September?
What is the UV index reading in September in Frederick?
Average temperature in September
Frederick, OK
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (96.8°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in September: 68.4°F
The month with the highest average low temperature is July (76.6°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
Frederick, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Frederick, OK
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest months (with the lowest average wind speed) are August and September (8.8mph).
Average humidity in September
Frederick, OK
- Average humidity in September: 59%
The months with the highest relative humidity are May and December (62%).
The month with the lowest relative humidity is August (49%).
Average rainfall in September
Frederick, OK
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (0.79").
Average rainfall days in September
Frederick, OK
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is January (4 days).
Average snowfall in September
Frederick, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Frederick, 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, September and October (0 days).
Average daylight in September /
Average sunshine in September
Frederick, 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 4min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Frederick, OK
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is January (25.5 days).
The month with the least sunshine days is September (15.9 days).
Average UV index in September
Frederick, OK
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Frederick, OK
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 31).
The months with the least cloud cover are June and August (Cloud cover 18).
Average visibility in September
Frederick, 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).
Frederick, Oklahoma, USA
Weather forecast for your location
2. Allow the app to use your location
