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 average high-temperature shows a slight dip in September, from August's 85.5°F (29.7°C) to a still warm 79°F (26.1°C). Lyndon records an average temperature drop to a moderate 60.3°F (15.7°C) in September.Humidity
In September, the average relative humidity is 73%.Rainfall
In Lyndon, Kansas, in September, during 7.1 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, in Lyndon, there are 74.1 rainfall days, and 6.57" (167mm) of precipitation is accumulated.Snowfall
April 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 6:52 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are September temperatures in Lyndon?
What is the average humidity in September in Lyndon?
How much does it rain in Lyndon in September?
When it does not snow in Lyndon?
Does it snow in Lyndon in September?
What is the average length of the day in September in Lyndon?
When is the sunrise / sunset in September in Lyndon?
How long on average sun shines in September in Lyndon?
What is the UV index reading in September in Lyndon?
Average temperature in September
Lyndon, KS
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in September
Lyndon, KS
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Lyndon, KS
- Average wind speed in September: 8.7mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in September
Lyndon, KS
- Average humidity in September: 73%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are October and November (67%).
Average rainfall in September
Lyndon, KS
- Average rainfall in September: 0.35"
The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are February, November and December (0.2").
Average rainfall days in September
Lyndon, KS
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is July (9.7 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in September
Lyndon, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Lyndon, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lyndon, KS
- Average daylight in September: 12h and 2min
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: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Lyndon, KS
- Average sunshine days in September: 21.2 days
The month with the most sunshine days is December (27.8 days).
The months with the least sunshine days are June and July (19.1 days).
Average UV index in September
Lyndon, KS
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lyndon, KS
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are June, July and August (Cloud cover 24).
Average visibility in September
Lyndon, 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).
Lyndon, Kansas, USA
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