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 signals a slight drop in average high-temperature, sliding from August's hot 88.7°F (31.5°C) to a warm 82.2°F (27.9°C). During September, Sidney consistently records a temperature low averaging a refreshing 62.4°F (16.9°C).Heat index
The heat index in September is computed to be a tropical 87.8°F (31°C). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Humidity
The average relative humidity in September in Sidney is 74%.Rainfall
September is the month with the least rainfall in Sidney. Rain falls for 11.9 days and accumulates 1.81" (46mm) of precipitation.Snowfall
In Sidney, Arkansas, snow does not fall in April through October.Daylight
In Sidney, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:39 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:51 pm CDT.
Sunshine
In September, the average sunshine is 9.5h.UV index
In Sidney, 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 average individuals.Note: An average UV index of 5 in September transforms into this advice:
Undertake precautions - Guarding against sun damage is counselled. It's recommended to limit sun exposure when its radiation is at its peak during midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Sidney?
What is the average humidity in September in Sidney?
What is the driest month in Sidney?
How much does it rain in Sidney in September?
When it does not snow in Sidney?
How many hours of daylight does Sidney have in September?
When is the sunrise / sunset in September in Sidney?
How long on average sun shines in September in Sidney?
How high is the UV index in September in Sidney?
Average temperature in September
Sidney, AR
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Sidney, AR
- 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 (29.93"Hg).
Average wind speed in September
Sidney, AR
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are January, February and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Sidney, AR
- Average humidity in September: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Sidney, AR
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is April (4.37").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Sidney, AR
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is December (8.6 days).
Average snowfall in September
Sidney, AR
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Sidney, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sidney, AR
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Sidney, AR
- Average sunshine days in September: 16 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Sidney, AR
- 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 and December (UV index 2).
Average cloud cover in September
Sidney, AR
- Average cloud cover in September: 29
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Sidney, AR
- 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).
Sidney, Arkansas, USA
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