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
A moderate decline in average high-temperatures is noted in September, moving from a tropical 86.5°F (30.3°C) in August to a warm 80.1°F (26.7°C). Throughout September, Winchester encounters an average temperature drop to a moderate 59.9°F (15.5°C).Humidity
In Winchester, Missouri, the average relative humidity in September is 73%.Rainfall
In September, in Winchester, the rain falls for 11.6 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 134.1 rainfall days, and 23.82" (605mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Winchester.Daylight
In Winchester, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:32 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:45 pm CDT.
Sunshine
In Winchester, the average sunshine in September is 9.4h.UV index
In Winchester, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Adopt protective measures - It is advised to guard against sun damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Winchester?
What is the average humidity in September in Winchester?
How many days does it rain in September in Winchester?
When it does not snow in Winchester?
What is the average length of the day in September in Winchester?
What time are sunrise and sunset in September in Winchester?
How many hours of sunshine does Winchester have in September?
What is the UV index intensity in September in Winchester?
Average temperature in September
Winchester, MO
- Average high temperature in September: 80.1°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in September
Winchester, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Winchester, MO
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Winchester, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Winchester, MO
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in September
Winchester, MO
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (6.1 days).
Average snowfall in September
Winchester, MO
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.3").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Winchester, MO
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Winchester, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Winchester, MO
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in September
Winchester, MO
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Winchester, MO
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in September
Winchester, MO
- 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).
Winchester, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location