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 onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 88.5°F (31.4°C) in August to a warm 81.5°F (27.5°C). Kirbyville records a marked daily temperature contrast, with an average low-temperature of 59.9°F (15.5°C) during the nights of September.Heat index
The heat index in September is evaluated at a tropical 86°F (30°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Humidity
In Kirbyville, the average relative humidity in September is 74%.Rainfall
In Kirbyville, in September, during 12.3 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 145.9 rainfall days, and 32.4" (823mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
In Kirbyville, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:44 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:57 pm CDT.
Sunshine
In September, the average sunshine in Kirbyville is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Heed the precautions - Suggestions to avoid sunburn are made. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Kirbyville in September?
What is the average humidity in September in Kirbyville?
How much does it rain in Kirbyville in September?
When it does not snow in Kirbyville?
What is the average length of the day in September in Kirbyville?
What time are sunrise and sunset in September in Kirbyville?
How many hours of sunshine does Kirbyville have in September?
What is the UV index intensity in September in Kirbyville?
Average temperature in September
Kirbyville, MO
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (44.1°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in September
Kirbyville, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Kirbyville, MO
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January and April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Kirbyville, MO
- Average humidity in September: 74%
The months with the highest relative humidity are March and May (77%).
The months with the lowest relative humidity are January, June, July, August and October (73%).
Average rainfall in September
Kirbyville, MO
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are January and February (1.73").
Average rainfall days in September
Kirbyville, MO
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Kirbyville, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Kirbyville, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Kirbyville, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Kirbyville, MO
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in September
Kirbyville, 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
Kirbyville, MO
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 27).
Average visibility in September
Kirbyville, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Kirbyville, Missouri, USA
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