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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a hot 86°F (30°C) in August to a moderately hot 79.5°F (26.4°C). Rocheport experiences an average low-temperature of 59°F (15°C) in the month of September.Humidity
In Rocheport, the average relative humidity in September is 74%.Rainfall
In Rocheport, in September, during 8.2 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, there are 95.5 rainfall days, and 8.62" (219mm) of precipitation is accumulated.Snowfall
In Rocheport, snow does not fall in April through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Rocheport is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To protect against the Sun's most potent rays, avoid direct exposure around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Rocheport have in September?
How high is the UV index in September?
Average temperature in September
Rocheport, MO
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure in September
Rocheport, 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 (29.91"Hg).
Average wind speed in September
Rocheport, MO
- Average wind speed in September: 6.7mph
The windiest months (with the highest average wind speed) are January and March (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).
Average humidity in September
Rocheport, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Rocheport, MO
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is May (1.3").
The driest months (with the least rainfall) are January and February (0.43").
Average rainfall days in September
Rocheport, MO
- Average rainfall days in September: 8.2 days
The months with the highest number of rainy days are April and May (11.3 days).
The month with the least rainy days is January (3.8 days).
Average snowfall in September
Rocheport, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Rocheport, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rocheport, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 42min).
Average sunshine days in September
Rocheport, MO
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is December (23.7 days).
The month with the least sunshine days is May (15.6 days).
Average UV index in September
Rocheport, 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
Rocheport, MO
- Average cloud cover in September: 30
The months with the most cloud cover are January, February and March (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 29).
Average visibility in September
Rocheport, 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).
Rocheport, Missouri, USA
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