September weather forecastVermillion, KS
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Vermillion, Kansas, with an average temperature varying between 58.3°F (14.6°C) and 78.4°F (25.8°C).Temperature
September ushers in a minor alteration in Vermillion's climate, with the average high-temperature moving from August's moderately hot 84.7°F (29.3°C) to a still warm 78.4°F (25.8°C). In September, the temperature in Vermillion drops to an average of 58.3°F (14.6°C) at night.Humidity
The average relative humidity in September is 72%.Rainfall
In Vermillion, Kansas, during September, the rain falls for 11.4 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Vermillion, Kansas, during the entire year, the rain falls for 113.5 days and collects up to 19.65" (499mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:55 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine in Vermillion is 9.1h.UV index
In Vermillion, Kansas, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. 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
Vermillion, KS
- Average high temperature in September: 78.4°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (67.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Vermillion, 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 (29.86"Hg).
Average wind speed in September
Vermillion, KS
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in September
Vermillion, KS
- Average humidity in September: 72%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is October (66%).
Average rainfall in September
Vermillion, KS
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in September
Vermillion, KS
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
Vermillion, KS
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Vermillion, KS
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (5.2 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
Vermillion, KS
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 9h and 6min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Vermillion, KS
- Average sunshine days in September: 17 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in September
Vermillion, KS
- 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, November and December (UV index 2).
Average cloud cover in September
Vermillion, KS
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June and July (Cloud cover 26).
Average visibility in September
Vermillion, 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).
