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 arrival of September, Shelbyville experiences a modest decline in average high-temperatures, transitioning from a moderately hot 83.3°F (28.5°C) in August to a still warm 77.7°F (25.4°C). Shelbyville observes an average nighttime temperature of 58.1°F (14.5°C) during September.Humidity
In September, the average relative humidity is 75%.Rainfall
In Shelbyville, during September, the rain falls for 11 days and regularly aggregates up to 2.13" (54mm) of precipitation. In Shelbyville, during the entire year, the rain falls for 133.9 days and collects up to 26.69" (678mm) of precipitation.Snowfall
In Shelbyville, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Shelbyville, Missouri, sunrise is at 6:36 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:51 pm CDT.
Sunshine
In Shelbyville, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What is the temperature in September in Shelbyville?
What is the average humidity in September in Shelbyville?
How much does it rain in Shelbyville in September?
When it does not snow in Shelbyville?
Does it snow in Shelbyville in September?
How many hours of daylight does Shelbyville have in September?
When are sunrise and sunset in September in Shelbyville?
How many hours of sunshine does Shelbyville have in September?
How high is the UV index in September in Shelbyville?
Average temperature in September
Shelbyville, MO
- Average high temperature in September: 77.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (33.8°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Shelbyville, 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
Shelbyville, MO
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Shelbyville, 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
Shelbyville, MO
- Average rainfall in September: 2.13"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (1.18").
Average rainfall days in September
Shelbyville, MO
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Shelbyville, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Shelbyville, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.7 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
Shelbyville, 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 24min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Shelbyville, MO
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
Shelbyville, 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
Shelbyville, MO
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Shelbyville, 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).
Shelbyville, Missouri, USA
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