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
Onset of September witnesses a reduction in the average high-temperature, falling from a very hot 96.8°F (36°C) in August to a hot 87.3°F (30.7°C). Throughout the September nights, Chillicothe encounters a low-temperature of 68.9°F (20.5°C).Heat index
In September, the heat index is estimated at a hot 91.4°F (33°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September is 55%.Rainfall
In Chillicothe, during September, the rain falls for 10.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Chillicothe, during the entire year, the rain falls for 76.7 days and collects up to 8.46" (215mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 7:12 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:23 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
In Chillicothe, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 6 suggests this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. 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
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Chillicothe have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Chillicothe have in September?
What is the UV index reading in September?
Average temperature in September
Chillicothe, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is July (76.8°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).
Average pressure in September
Chillicothe, TX
- 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 (29.86"Hg).
Average wind speed in September
Chillicothe, TX
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in September
Chillicothe, TX
- Average humidity in September: 55%
The month with the highest relative humidity is December (57%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Chillicothe, TX
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are February and November (0.24").
Average rainfall days in September
Chillicothe, TX
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is September (10.5 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in September
Chillicothe, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Chillicothe, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Chillicothe, TX
- 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: 9h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are November and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Chillicothe, TX
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is January (27.5 days).
The month with the least sunshine days is September (16.1 days).
Average UV index in September
Chillicothe, TX
- Average UV index in September: 6
The month with the highest UV index is June (UV index 8).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Chillicothe, TX
- Average cloud cover in September: 24
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Chillicothe, TX
- 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).
Chillicothe, Texas, USA
Weather forecast for your location
2. Allow the app to use your location