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 arrival of September corresponds with a light shift in temperature, down from 84.7°F (29.3°C) in August to a still warm 78.3°F (25.7°C). An average low-temperature of 59.9°F (15.5°C) marks the month of September.Humidity
In Lee's Summit, the average relative humidity in September is 75%.Rainfall
In Lee's Summit, Missouri, in September, it is raining for 12.3 days, with typically 2.72" (69mm) of accumulated precipitation. In Lee's Summit, during the entire year, the rain falls for 137.8 days and collects up to 29.53" (750mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:13 am and sunset at 7:01 pm CDT.
Sunshine
In Lee's Summit, Missouri, the average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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 much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Lee's Summit have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Lee's Summit have in September?
How high is the UV index in September?
Average temperature in September
Lee's Summit, MO
- Average high temperature in September: 78.3°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in September
Lee's Summit, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Lee's Summit, MO
- Average wind speed in September: 7.1mph
The windiest months (with the highest average wind speed) are February, March and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Lee's Summit, MO
- Average humidity in September: 75%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Lee's Summit, MO
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in September
Lee's Summit, MO
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (5.6 days).
Average snowfall in September
Lee's Summit, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Lee's Summit, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lee's Summit, 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 month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Lee's Summit, MO
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is December (22.2 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Lee's Summit, MO
- Average UV index in September: 5
The months with the highest UV index are May, 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
Lee's Summit, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 26).
Average visibility in September
Lee's Summit, 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).
Lee's Summit, Missouri, USA
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