September weather forecastCook Station, MO
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Cook Station, Missouri, with an average temperature varying between 80.6°F (27°C) and 58.8°F (14.9°C).Temperature
With the commencement of September, Cook Station records a moderate temperature decline, with the average high easing from August's hot 87.4°F (30.8°C) to a warm 80.6°F (27°C). Cook Station records a consistent low-temperature average of 58.8°F (14.9°C) during September, indicating a significant difference from the daytime heat.Heat index
In September, the heat index is calculated to be 84.2°F (29°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In September, the average relative humidity in Cook Station is 74%.Rainfall
In Cook Station, in September, during 11.4 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. Throughout the year, there are 137 rainfall days, and 24.61" (625mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Cook Station, Missouri, sunrise is at 6:36 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Cook Station, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cook Station, MO
- Average high temperature in September: 80.6°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in September: 58.8°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in September
Cook Station, 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 (29.92"Hg).
Average wind speed in September
Cook Station, MO
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in September
Cook Station, MO
- Average humidity in September: 74%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Cook Station, MO
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is April (3.19").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in September
Cook Station, MO
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in September
Cook Station, MO
- Average snowfall in September: 0"
The months with the highest snowfall are February and December (2.09").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cook Station, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.6 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
Cook Station, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 18min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days in September
Cook Station, MO
- Average sunshine days in September: 16 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (12.6 days).
Average UV index in September
Cook Station, 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 and December (UV index 2).
Average cloud cover in September
Cook Station, MO
- Average cloud cover in September: 33
The months with the most cloud cover are February and March (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Cook Station, MO
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
