September weather forecastLeonard, MO
September
Weather in September
September, the first month of the autumn in Leonard, is still a warm month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 57.7°F (14.3°C).Temperature
In September, the average high-temperature marginally decreases from a warm 83.3°F (28.5°C) in August to a still moderately hot 77.5°F (25.3°C). The temperature in Leonard, Missouri, dips to an average of 57.7°F (14.3°C) during September nights.Humidity
The average relative humidity in September is 75%.Rainfall
In September, in Leonard, the rain falls for 10.5 days. Throughout September, 2.32" (59mm) of precipitation is accumulated. Throughout the year, there are 130.9 rainfall days, and 26.3" (668mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Leonard.Daylight
In Leonard, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:37 am and sunset at 7:39 pm. On the last day of September, in Leonard, Missouri, sunrise is at 7:04 am and sunset at 6:52 pm CDT.
Sunshine
The average sunshine in September in Leonard is 9.2h.UV index
In September, the average daily maximum UV index in Leonard is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Leonard, MO
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Leonard, 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 (29.9"Hg).
Average wind speed in September
Leonard, MO
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are January and February (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in September
Leonard, MO
- Average humidity in September: 75%
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Leonard, MO
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in September
Leonard, MO
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Leonard, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Leonard, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.8 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
Leonard, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Leonard, MO
- Average sunshine days in September: 18 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is June (12 days).
Average UV index in September
Leonard, 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
Leonard, MO
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Leonard, 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).





