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 onset of September brings a small shift in high-temperatures, falling from a hot 94.6°F (34.8°C) in August to a warm 85.8°F (29.9°C). Lone Grove's average low-temperature for the month of September records at an enjoyable 66.9°F (19.4°C).Heat index
The heat index in September is calculated to be a hot 93.2°F (34°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Records show heat index calculations are tailored for shaded regions and mild winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in September is 65%.Rainfall
In Lone Grove, in September, it is raining for 12 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, there are 121.2 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Lone Grove, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:03 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm CDT.
Sunshine
In Lone Grove, the average sunshine in September is 8.5h.UV index
In Lone Grove, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Lone Grove have in September?
How high is the UV index in September?
Average temperature in September
Lone Grove, OK
- Average high temperature in September: 85.8°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (51.6°F).
- Average low temperature in September: 66.9°F
The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Lone Grove, 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
Lone Grove, OK
- Average wind speed in September: 7.4mph
The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is September (7.4mph).
Average humidity in September
Lone Grove, OK
- Average humidity in September: 65%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Lone Grove, OK
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is December (1.06").
Average rainfall days in September
Lone Grove, OK
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in September
Lone Grove, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Lone Grove, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Lone Grove, 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 3min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Lone Grove, OK
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is January (24.5 days).
The month with the least sunshine days is May (15.1 days).
Average UV index in September
Lone Grove, 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
Lone Grove, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Lone Grove, 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).
Lone Grove, Oklahoma, USA
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