September weather forecastLyndon, KS
September
Weather in September
September, the first month of the autumn in Lyndon, is still a warm month, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 60.3°F (15.7°C).Temperature
September signals a slight drop in average high-temperature, sliding from August's 85.5°F (29.7°C) to a still warm 79°F (26.1°C). In September, the recorded average low-temperature is a mild 60.3°F (15.7°C).Humidity
In Lyndon, the average relative humidity in September is 73%.Rainfall
In Lyndon, Kansas, in September, during 7.1 rainfall days, 0.35" (9mm) of precipitation is typically accumulated. Throughout the year, 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 September, sunrise is at 6:52 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:06 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September in Lyndon is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 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: 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).
