September weather forecastLyons, KS
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Lyons, Kansas, with temperature in the range of an average low of 61.9°F (16.6°C) and an average high of 81.5°F (27.5°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from a hot 89.2°F (31.8°C) in August to a moderately hot 81.5°F (27.5°C). Lyons usually reports an average low-temperature of 61.9°F (16.6°C) during the month of September.Heat index
Throughout September, the heat index is computed to be 84.2°F (29°C). If one continues to be active during enduring exposure, it could result in fatigue and heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
In September, the average relative humidity is 64%.Rainfall
In September, the rain falls for 11.8 days. Throughout September, 1.93" (49mm) of precipitation is accumulated. Throughout the year, in Lyons, there are 115.5 rainfall days, and 21.77" (553mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 7:03 am and sunset at 8:02 pm. On the last day of September, in Lyons, sunrise is at 7:28 am and sunset at 7:16 pm CDT.
Sunshine
In Lyons, Kansas, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Lyons, Kansas, is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lyons, KS
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (41.9°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Lyons, KS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Lyons, KS
- Average wind speed in September: 10.6mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9.3mph).
Average humidity in September
Lyons, KS
- Average humidity in September: 64%
The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is July (59%).
Average rainfall in September
Lyons, KS
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Lyons, KS
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (3.1 days).
Average snowfall in September
Lyons, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Lyons, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.8 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
Lyons, KS
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The months with the least sunshine are January and December (Average sunshine: 6h and 12min).
Average sunshine days in September
Lyons, KS
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is January (23.1 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in September
Lyons, KS
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Lyons, KS
- Average cloud cover in September: 24
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is June (Cloud cover 20).
Average visibility in September
Lyons, KS
- 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).
