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 characterized by a slight reduction in average high-temperature, easing from 83.3°F (28.5°C) in August to a still warm 74.7°F (23.7°C). Weed anticipates a stark contrast in temperature during September nights, with an average low of 43.7°F (6.5°C).Humidity
The average relative humidity in September in Weed, California, is 52%.Rainfall
In Weed, during September, the rain falls for 4.8 days and regularly aggregates up to 0.47" (12mm) of precipitation. Throughout the year, there are 120 rainfall days, and 22.01" (559mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Weed. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Weed, during the entire year, snow falls for 42.5 days and aggregates up to 35.35" (898mm) of snow.Daylight
The average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:36 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:06 am and sunset at 6:52 pm PDT.
Sunshine
In Weed, the average sunshine in September is 11h.UV index
In September, the average daily maximum UV index in Weed is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Weed?
What is the average humidity in September in Weed?
How many days does it rain in September in Weed?
When does it start snowing in Weed?
How many hours of daylight does Weed have in September?
When is the sunrise / sunset in September in Weed?
How many hours of sunshine does Weed have in September?
What is the UV index intensity in September in Weed?
Average temperature in September
Weed, CA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is December (40.1°F).
- Average low temperature in September: 43.7°F
The months with the highest average low temperature are July and August (49.6°F).
The coldest month (with the lowest average low temperature) is December (25.5°F).
Average pressure in September
Weed, CA
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.94"Hg).
Average wind speed in September
Weed, CA
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is March (6.3mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in September
Weed, CA
- Average humidity in September: 52%
The months with the highest relative humidity are January and March (80%).
The month with the lowest relative humidity is August (48%).
Average rainfall in September
Weed, CA
- Average rainfall in September: 0.47"
The wettest month (with the highest rainfall) is March (3.62").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Weed, CA
- Average rainfall days in September: 4.8 days
The month with the highest number of rainy days is March (17.1 days).
The month with the least rainy days is August (3.3 days).
Average snowfall in September
Weed, CA
- Average snowfall in September: 0.04"
The month with the highest snowfall is January (8.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Weed, CA
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is March (9.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Weed, CA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Weed, CA
- Average sunshine days in September: 23.9 days
The month with the most sunshine days is August (24.6 days).
The month with the least sunshine days is March (10 days).
Average UV index in September
Weed, CA
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Weed, CA
- Average cloud cover in September: 14
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in September
Weed, CA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Weed, California, USA
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