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
Auburn marks the onset of September with an average high-temperature of a warm 85.8°F (29.9°C), subtly divergent from August's 91°F (32.8°C). Auburn endures a clear shift from daytime heat to a mean low-temperature of 58.1°F (14.5°C) during September nights.Heat index
The heat index in September is estimated at a tropical 86°F (30°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index's context suggests values are appropriate for shady areas and slight breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In Auburn, California, the average relative humidity in September is 40%.Rainfall
In Auburn, during September, the rain falls for 2.4 days and regularly aggregates up to 0.24" (6mm) of precipitation. Throughout the year, in Auburn, there are 84.8 rainfall days, and 28.86" (733mm) of precipitation is accumulated.Snowfall
January, April through November are months without snowfall in Auburn.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:34 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm PDT.
Sunshine
In Auburn, the average sunshine in September is 11.2h.UV index
In September, the average daily maximum UV index in Auburn is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 5 in September translates into the following instructions:
Take precautions - Protection against sun damage is advised. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
Is it hot in Auburn during September?
What is the average humidity in September in Auburn?
How much does it rain in Auburn in September?
When it does not snow in Auburn?
What is the average length of the day in September in Auburn?
What time are sunrise and sunset in September in Auburn?
How many hours of sunshine does Auburn have in September?
What is the UV index intensity in September in Auburn?
Average temperature in September
Auburn, CA
- Average high temperature in September: 85.8°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (53.4°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is December (39.2°F).
Average pressure in September
Auburn, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Auburn, CA
- Average wind speed in September: 4.6mph
The windiest months (with the highest average wind speed) are February and March (5.7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Auburn, CA
- Average humidity in September: 40%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (38%).
Average rainfall in September
Auburn, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is March (5.63").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Auburn, CA
- Average rainfall days in September: 2.4 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is July (1 days).
Average snowfall in September
Auburn, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Auburn, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Auburn, CA
- 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: 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 December (Average sunshine: 5h and 48min).
Average sunshine days in September
Auburn, CA
- Average sunshine days in September: 27.3 days
The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is March (14.6 days).
Average UV index in September
Auburn, CA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Auburn, CA
- Average cloud cover in September: 8
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Auburn, CA
- 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).
Auburn, California, USA
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