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 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
In the transition to September, Yuba City observes a minor drop in the average high-temperature, shifting from a very hot 95.2°F (35.1°C) in August to a tropical 89.4°F (31.9°C). September is characterized by a distinct thermal shift, with nighttime lows averaging at a moderate 60.4°F (15.8°C).Humidity
The months with the lowest humidity are July and September, with an average relative humidity of 38%.Rainfall
In Yuba City, during September, the rain falls for 1.9 days and regularly aggregates up to 0.16" (4mm) of precipitation. In Yuba City, during the entire year, the rain falls for 69.8 days and collects up to 10.79" (274mm) of precipitation.Snowfall
January through November are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:50 pm PDT.
Sunshine
In September, the average sunshine is 11.2h.UV index
In Yuba City, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Around midday, solar radiation is most harmful; hence, exposure should be limited. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What are the least humid months?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Yuba City have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Yuba City have in September?
What is the UV index intensity in September?
Average temperature in September
Yuba City, CA
- Average high temperature in September: 89.4°F
The warmest month (with the highest average high temperature) is July (96.4°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in September: 60.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is December (41°F).
Average pressure in September
Yuba City, 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
Yuba City, CA
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is March (6.1mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).
Average humidity in September
Yuba City, CA
- Average humidity in September: 38%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and September (38%).
Average rainfall in September
Yuba City, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is March (2.17").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Yuba City, CA
- Average rainfall days in September: 1.9 days
The month with the highest number of rainy days is March (13.5 days).
The month with the least rainy days is July (0.9 days).
Average snowfall days in September
Yuba City, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Yuba City, 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 12min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Yuba City, CA
- Average sunshine days in September: 27.4 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (16.8 days).
Average UV index in September
Yuba City, 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
Yuba City, CA
- Average cloud cover in September: 8
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Yuba City, 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).
Yuba City, California, USA
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