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 marked by a subtle drop in average high-temperatures, transitioning from 93.7°F (34.3°C) in August to a still tropical 86.5°F (30.3°C). In September, the temperature sees a substantial plunge from daytime highs to a low average of 59.2°F (15.1°C).Humidity
The average relative humidity in September in Millville is 36%.Rainfall
In September, in Millville, the rain falls for 3.4 days. Throughout September, 0.28" (7mm) of precipitation is accumulated. Throughout the year, in Millville, there are 88.1 rainfall days, and 23.62" (600mm) of precipitation is accumulated.Snowfall
In Millville, California, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:36 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:51 pm PDT.
Sunshine
The average sunshine in September is 11.1h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average maximum UV index of 5 in September leads to these recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Millville in September?
What is the average humidity in September in Millville?
How much does it rain in Millville in September?
When it does not snow in Millville?
How many hours of daylight does Millville have in September?
When are sunrise and sunset in September in Millville?
How long on average sun shines in September in Millville?
How high is the UV index in September in Millville?
Average temperature in September
Millville, CA
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is July (95.2°F).
The month with the lowest average high temperature is December (51.8°F).
- Average low temperature in September: 59.2°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (37.8°F).
Average pressure in September
Millville, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.92"Hg).
Average wind speed in September
Millville, CA
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).
Average humidity in September
Millville, CA
- Average humidity in September: 36%
The month with the highest relative humidity is March (73%).
The month with the lowest relative humidity is August (32%).
Average rainfall in September
Millville, CA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is March (4.65").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in September
Millville, CA
- Average rainfall days in September: 3.4 days
The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is August (1.4 days).
Average snowfall in September
Millville, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Millville, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Millville, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Millville, CA
- Average sunshine days in September: 26 days
The month with the most sunshine days is July (28.4 days).
The month with the least sunshine days is March (14.6 days).
Average UV index in September
Millville, 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
Millville, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Millville, 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).
Millville, California, USA
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