September weather forecastBoswell, OK
September
Weather in September
September brings a gentle shift in Boswell's climatic pattern, as the city starts withdrawing from summer's peak. Ample rainfall and temperate climate pave the way for a splendid fall season. The landscape gradually transitions to an autumnal palette, with leaves turning hues of orange and yellow. The sunlight softens, and the wind picks up slightly, adding a refreshing edge to the mild weather.Temperature
With the onset of September, Boswell's climate undergoes a slight change as the average high-temperature moves from a tropical 93.4°F (34.1°C) in August to a warm 85.8°F (29.9°C). Boswell reports an average low-temperature of 65.7°F (18.7°C) during the nights of September.Heat index
The average heat index in September is appraised 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.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
The average relative humidity in September is 68%.Rainfall
In Boswell, during September, the rain falls for 12 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, in Boswell, there are 125.9 rainfall days, and 19.49" (495mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Boswell, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:57 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:08 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, a regular UV index of 6 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boswell, OK
- Average high temperature in September: 85.8°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (50.5°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in September
Boswell, 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
Boswell, OK
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are March and April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Boswell, 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
Boswell, OK
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in September
Boswell, OK
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (13.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in September
Boswell, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.67").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Boswell, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 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
Boswell, OK
- Average daylight in September: 12h and 24min
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 54min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Boswell, OK
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in September
Boswell, 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
Boswell, OK
- Average cloud cover in September: 28
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
Boswell, 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).
