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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a warm 79°F (26.1°C) in August to an agreeable 73.2°F (22.9°C). September nights bring a significant cooling from the heat of the day, with averages of 47.3°F (8.5°C).Humidity
In Dardanelle, the average relative humidity in September is 40%.Rainfall
In Dardanelle, during September, the rain falls for 4 days and regularly aggregates up to 0.39" (10mm) of precipitation. In Dardanelle, during the entire year, the rain falls for 66.3 days and collects up to 33.43" (849mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Dardanelle. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.12" (3mm) of snow. In Dardanelle, during the entire year, snow falls for 63.7 days and aggregates up to 179.69" (4564mm) of snow.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:29 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:43 pm PDT.
Sunshine
In Dardanelle, the average sunshine in September is 11.1h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 during September leads to these advisories:
Undertake precautions - Guarding against sun damage is counselled. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Dardanelle?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Dardanelle, CA
- Average high temperature in September: 73.2°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is December (41.7°F).
- Average low temperature in September: 47.3°F
The month with the highest average low temperature is July (52.3°F).
The coldest month (with the lowest average low temperature) is December (25.2°F).
Average pressure in September
Dardanelle, CA
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Dardanelle, CA
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in September
Dardanelle, CA
- Average humidity in September: 40%
The month with the highest relative humidity is March (77%).
The months with the lowest relative humidity are July and August (38%).
Average rainfall in September
Dardanelle, CA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is February (5.98").
The driest month (with the least rainfall) is August (0.16").
Average rainfall days in September
Dardanelle, CA
- Average rainfall days in September: 4 days
The month with the highest number of rainy days is May (10.2 days).
The months with the least rainy days are July and August (3.4 days).
Average snowfall in September
Dardanelle, CA
- Average snowfall in September: 0.12"
The month with the highest snowfall is March (38.07").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Dardanelle, CA
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is March (13.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Dardanelle, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 42min).
Average sunshine days in September
Dardanelle, CA
- Average sunshine days in September: 25.1 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (13.8 days).
Average UV index in September
Dardanelle, CA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Dardanelle, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Dardanelle, CA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is March (5mi).
Dardanelle, California, USA
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