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 is characterized by a slight reduction in average high-temperature, easing from a tropical 86.2°F (30.1°C) in August to a moderately hot 79.7°F (26.5°C). During September, Seymour records an average temperature of 59.7°F (15.4°C) at night.Humidity
In Seymour, the average relative humidity in September is 74%.Rainfall
In Seymour, during September, the rain falls for 13.4 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Seymour, during the entire year, the rain falls for 159.6 days and collects up to 36.22" (920mm) of precipitation.Snowfall
In Seymour, Missouri, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:42 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:55 pm CDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
In Seymour, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Seymour in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September in Seymour?
How high is the UV index in September?
Average temperature in September
Seymour, MO
- Average high temperature in September: 79.7°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in September: 59.7°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in September
Seymour, MO
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Seymour, MO
- Average wind speed in September: 6.5mph
The windiest months (with the highest average wind speed) are January and March (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in September
Seymour, MO
- Average humidity in September: 74%
The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Seymour, MO
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (4.84").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in September
Seymour, MO
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Seymour, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.5").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Seymour, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Seymour, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 12min).
Average sunshine days in September
Seymour, MO
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in September
Seymour, MO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Seymour, MO
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 29).
Average visibility in September
Seymour, 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).
Seymour, Missouri, USA
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