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
September is characterized by a mild reduction in the average high-temperature, from 84.6°F (29.2°C) in August to a still warm 77.4°F (25.2°C). Throughout the nights in September, Clarks experiences an average low-temperature of 56.5°F (13.6°C).Humidity
In Clarks, the average relative humidity in September is 67%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. Throughout the year, in Clarks, there are 114.7 rainfall days, and 20.83" (529mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Clarks, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:58 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:14 pm CDT.
Sunshine
In Clarks, the average sunshine in September is 8.6h.UV index
In Clarks, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 suggests these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Clarks have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Clarks have in September?
How high is the UV index in September?
Average temperature in September
Clarks, NE
- Average high temperature in September: 77.4°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Clarks, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Clarks, NE
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in September
Clarks, NE
- Average humidity in September: 67%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is October (62%).
Average rainfall in September
Clarks, NE
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Clarks, NE
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Clarks, NE
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Clarks, NE
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clarks, NE
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Clarks, NE
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is November (22.2 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in September
Clarks, NE
- Average UV index in September: 5
The months with the highest UV index are 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
Clarks, NE
- Average cloud cover in September: 28
The months with the most cloud cover are January and February (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Clarks, NE
- 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).
Clarks, Nebraska, USA
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