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
The commencement of September introduces an average high-temperature of a still moderately hot 79.5°F (26.4°C), closely mirroring the preceding month. In September, Willits endures a notable temperature shift from day to night, with lows averaging at a chilly 49.6°F (9.8°C).Humidity
The months with the lowest humidity are July and September, with an average relative humidity of 60%.Rainfall
In Willits, in September, during 2.6 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. Throughout the year, there are 95.1 rainfall days, and 26.77" (680mm) of precipitation is accumulated.Snowfall
May through October and December are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:42 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:56 pm PDT.
Sunshine
The average sunshine in September is 10.8h.UV index
In September, the average daily maximum UV index in Willits is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Willits in September?
What are the least humid months in Willits?
What is the average humidity in September in Willits?
How much does it rain in Willits in September?
When it does not snow in Willits?
How many hours of daylight does Willits have in September?
When are sunrise and sunset in September in Willits?
How many hours of sunshine does Willits have in September?
What is the UV index intensity in September in Willits?
Average temperature in September
Willits, CA
- Average high temperature in September: 79.5°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is December (52.7°F).
- Average low temperature in September: 49.6°F
The month with the highest average low temperature is July (52.7°F).
The coldest month (with the lowest average low temperature) is February (36.3°F).
Average pressure in September
Willits, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is August (29.92"Hg).
Average wind speed in September
Willits, CA
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Willits, CA
- Average humidity in September: 60%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are July and September (60%).
Average rainfall in September
Willits, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is February (5").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in September
Willits, CA
- Average rainfall days in September: 2.6 days
The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in September
Willits, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are May, June, July, August, September, October and December (0").
Average snowfall days in September
Willits, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Willits, 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 24min).
- Average sunshine in September: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Willits, CA
- Average sunshine days in September: 26.4 days
The month with the most sunshine days is August (28.6 days).
The month with the least sunshine days is March (14.4 days).
Average UV index in September
Willits, 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 February, November and December (UV index 2).
Average cloud cover in September
Willits, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 7).
Average visibility in September
Willits, CA
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May and December (5mi).
Willits, California, USA
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