September weather forecastClipper Mills, CA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Clipper Mills, California, with an average temperature ranging between min 59°F (15°C) and max 85.5°F (29.7°C).Temperature
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's tropical 91.4°F (33°C) to a moderately hot 85.5°F (29.7°C). September presents a sharp fall from Clipper Mills's daytime highs to an average low-temperature of 59°F (15°C).Humidity
In Clipper Mills, the average relative humidity in September is 36%.Rainfall
In September, in Clipper Mills, the rain falls for 2.8 days. Throughout September, 0.43" (11mm) of precipitation is accumulated. Throughout the year, in Clipper Mills, there are 88.4 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
In Clipper Mills, snow does not fall in January, March through October.Daylight
The average length of the day in September in Clipper Mills is 12h and 26min.On the first day of September, sunrise is at 6:33 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:48 pm PDT.
Sunshine
In Clipper Mills, the average sunshine in September is 11.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Clipper Mills, CA
- Average high temperature in September: 85.5°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is December (52.5°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in September
Clipper Mills, 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
Clipper Mills, CA
- Average wind speed in September: 5.7mph
The windiest months (with the highest average wind speed) are February, March and April (6.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Clipper Mills, CA
- Average humidity in September: 36%
The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July and August (34%).
Average rainfall in September
Clipper Mills, CA
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is March (6.02").
The driest month (with the least rainfall) is July (0.04").
Average rainfall days in September
Clipper Mills, CA
- Average rainfall days in September: 2.8 days
The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is July (1.4 days).
Average snowfall in September
Clipper Mills, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are January, March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Clipper Mills, 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 and October (0 days).
Average daylight in September /
Average sunshine in September
Clipper Mills, CA
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 11h and 12min
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 42min).
Average sunshine days in September
Clipper Mills, CA
- Average sunshine days in September: 25.9 days
The month with the most sunshine days is July (28.3 days).
The month with the least sunshine days is March (14.5 days).
Average UV index in September
Clipper Mills, 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
Clipper Mills, CA
- Average cloud cover in September: 9
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
Clipper Mills, 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).
