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 average high-temperature slightly decreases in September, shifting from a tropical 86.5°F (30.3°C) in August to a moderately hot 78.8°F (26°C). Throughout the month of September, Walnut reports a steady low-temperature average of 60.8°F (16°C).Humidity
In September, the average relative humidity is 76%.Rainfall
In Walnut, during September, the rain falls for 13.2 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, there are 138.5 rainfall days, and 32.17" (817mm) of precipitation is accumulated.Snowfall
In Walnut, snow does not fall in June through September.Daylight
In Walnut, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:51 am and sunset at 7:48 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:04 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 suggests this advice:
Ensure safety - Sun damage prevention is strongly urged. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
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 Walnut have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Walnut?
Average temperature in September
Walnut, KS
- Average high temperature in September: 78.8°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in September
Walnut, KS
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Walnut, KS
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is March (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (7.3mph).
Average humidity in September
Walnut, KS
- Average humidity in September: 76%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are October and November (71%).
Average rainfall in September
Walnut, KS
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is May (5.71").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in September
Walnut, KS
- Average rainfall days in September: 13.2 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Walnut, KS
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Walnut, KS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Walnut, 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: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Walnut, KS
- Average sunshine days in September: 15 days
The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
Walnut, 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
Walnut, KS
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June and July (Cloud cover 25).
Average visibility in September
Walnut, 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).
Walnut, Kansas, USA
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