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 a warm 83.5°F (28.6°C) in August to a still moderately hot 77.5°F (25.3°C). Walnut Ridge experiences an average low-temperature of 58.3°F (14.6°C) in the month of September.Humidity
In Walnut Ridge, Indiana, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall in Walnut Ridge, Indiana, is September, when the rain falls for 12.3 days and typically collects 1.61" (41mm) of precipitation.Snowfall
In Walnut Ridge, snow does not fall in May through September.Daylight
In Walnut Ridge, the average length of the day in September is 12h and 26min.On the first day of September in Walnut Ridge, Indiana, sunrise is at 7:11 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:25 pm EDT.
Sunshine
The average sunshine in September in Walnut Ridge is 8.3h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What is the temperature in September in Walnut Ridge?
What is the average humidity in September in Walnut Ridge?
What is the driest month in Walnut Ridge?
How many days does it rain in September in Walnut Ridge?
When it does not snow in Walnut Ridge?
Does it snow in Walnut Ridge in September?
How many hours of daylight does Walnut Ridge have in September?
When are sunrise and sunset in September in Walnut Ridge?
How long on average sun shines in September in Walnut Ridge?
What is the UV index reading in September in Walnut Ridge?
Average temperature in September
Walnut Ridge, IN
- Average high temperature in September: 77.5°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in September: 58.3°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 (23.4°F).
Average pressure in September
Walnut Ridge, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Walnut Ridge, IN
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January, February and April (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Walnut Ridge, IN
- Average humidity in September: 76%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Walnut Ridge, IN
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Walnut Ridge, IN
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (9 days).
Average snowfall in September
Walnut Ridge, IN
- Average snowfall in September: 0"
The month with the highest snowfall is March (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Walnut Ridge, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 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
Walnut Ridge, IN
- 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 30min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Walnut Ridge, IN
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is October (18.2 days).
The month with the least sunshine days is May (9.9 days).
Average UV index in September
Walnut Ridge, IN
- 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
Walnut Ridge, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Walnut Ridge, IN
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, June, October and November (6mi).
The months with the lowest visibility are February, May, July, August, September and December (5mi).
Walnut Ridge, Indiana, USA
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