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
In Dennis, entering September brings a subtle temperature decrement, reducing from August's tropical 87.1°F (30.6°C) to a moderately hot 80.2°F (26.8°C). Dennis's average low-temperature in the month of September is recorded at a refreshing 61.5°F (16.4°C).Humidity
The average relative humidity in September in Dennis is 74%.Rainfall
In Dennis, in September, during 10.8 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. Throughout the year, there are 114.4 rainfall days, and 19.69" (500mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Dennis.Daylight
In Dennis, the average length of the day in September is 12h and 25min.On the first day of September in Dennis, sunrise is at 6:52 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:05 pm CDT.
Sunshine
In Dennis, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Dennis, Kansas, is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
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. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What is the average September temperature in Dennis?
What is the average humidity in September in Dennis?
How much does it rain in Dennis in September?
When it does not snow in Dennis?
What is the average length of the day in September in Dennis?
What time are sunrise and sunset in September in Dennis?
How long on average sun shines in September in Dennis?
What is the UV index reading in September in Dennis?
Average temperature in September
Dennis, KS
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (42.6°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in September
Dennis, KS
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Dennis, KS
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is March (11.2mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).
Average humidity in September
Dennis, KS
- Average humidity in September: 74%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Dennis, KS
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is November (0.51").
Average rainfall days in September
Dennis, KS
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is December (4.6 days).
Average snowfall in September
Dennis, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Dennis, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Dennis, KS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Dennis, KS
- Average sunshine days in September: 17.2 days
The months with the most sunshine days are January and December (23.1 days).
The month with the least sunshine days is May (14.6 days).
Average UV index in September
Dennis, 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 and December (UV index 2).
Average cloud cover in September
Dennis, KS
- Average cloud cover in September: 28
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
Dennis, 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).
Dennis, Kansas, USA
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