September weather forecastKirksville, MO
September
Weather in September
September signifies the arrival of autumn in Kirksville, Missouri, with a marked decline in temperature from summer highs. The daylight hours show a noticeable reduction indicating the upcoming arrival of October, with its shorter and cooler days. The autumnal equinox in late September signifies the transition from summer to autumn, as equal day and night lengths mark the commencement of cooler days. The overall weather during this month suits a variety of outdoor activities, as it offers a balance between warm summer and cool autumn. The perennial theme of falling leaves makes September a picturesque and colorful month.Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from 82.2°F (27.9°C) in August to a still warm 76.6°F (24.8°C). Kirksville, in September, witnesses an average low-temperature of 57.4°F (14.1°C).Humidity
In September, the average relative humidity is 76%.Rainfall
In Kirksville, in September, it is raining for 11.5 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 136.5 rainfall days, and 26.69" (678mm) of precipitation is accumulated.Snowfall
In Kirksville, snow does not fall in May through September.Daylight
The average length of the day in September in Kirksville, Missouri, is 12h and 26min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:41 pm. On the last day of September, in Kirksville, Missouri, sunrise is at 7:06 am and sunset at 6:53 pm CDT.
Sunshine
The average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kirksville, MO
- Average high temperature in September: 76.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (66.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Kirksville, 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
Kirksville, MO
- Average wind speed in September: 7.6mph
The windiest months (with the highest average wind speed) are January and February (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in September
Kirksville, MO
- Average humidity in September: 76%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Kirksville, MO
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in September
Kirksville, MO
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Kirksville, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Kirksville, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 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
Kirksville, 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 24min
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 30min).
Average sunshine days in September
Kirksville, MO
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is June (11.4 days).
Average UV index in September
Kirksville, 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
Kirksville, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Kirksville, 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).





