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 arrival of September corresponds with a light shift in temperature, down from a moderately hot 85.1°F (29.5°C) in August to a still warm 78.4°F (25.8°C). During the month of September, an average temperature of 59.2°F (15.1°C) is noted during the nights.Humidity
In Denison, the average relative humidity in September is 73%.Rainfall
In Denison, during September, the rain falls for 11.1 days and regularly aggregates up to 1.77" (45mm) of precipitation. In Denison, during the entire year, the rain falls for 111.2 days and collects up to 18.23" (463mm) of precipitation.Snowfall
June through September are months without snowfall in Denison, Kansas.Daylight
In September, the average length of the day in Denison, Kansas, is 12h and 26min.On the first day of September, sunrise is at 6:51 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 in Denison, Kansas, is 9h.UV index
In September, the average daily maximum UV index in Denison is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
What is the usual temperature for Denison in September?
What is the average humidity in September in Denison?
How many days does it rain in September in Denison?
When it does not snow in Denison?
Does it snow in Denison in September?
What is the average length of the day in September in Denison?
What time are sunrise and sunset in September in Denison?
How long on average sun shines in September in Denison?
What is the UV index reading in September in Denison?
Average temperature in September
Denison, 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 (36.3°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Denison, 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
Denison, KS
- Average wind speed in September: 8.2mph
The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in September
Denison, KS
- Average humidity in September: 73%
The months with the highest relative humidity are May and June (77%).
The months with the lowest relative humidity are October and November (68%).
Average rainfall in September
Denison, KS
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is May (2.8").
The driest months (with the least rainfall) are January and December (0.51").
Average rainfall days in September
Denison, KS
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in September
Denison, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Denison, 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 June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Denison, KS
- Average daylight in September: 12h and 2min
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 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Denison, KS
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is December (24.1 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in September
Denison, 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
Denison, KS
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in September
Denison, 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).
Denison, Kansas, USA
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