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 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
With September's onset, the weather reveals a slight temperature decrease, transitioning from a sweltering 100.9°F (38.3°C) in August to a tropical 93.7°F (34.3°C). During September nights, Raisin City documents a marked contrast from daily highs, with an average temperature of 63.1°F (17.3°C).Humidity
The average relative humidity in September in Raisin City is 33%.Rainfall
In Raisin City, in September, it is raining for 1.9 days, with typically 0.16" (4mm) of accumulated precipitation. Throughout the year, there are 59.3 rainfall days, and 10.31" (262mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 24min.On the first day of the month, sunrise is at 6:31 am and sunset at 7:27 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:43 pm PDT.
Sunshine
In Raisin City, the average sunshine in September is 11.2h.UV index
In Raisin City, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September in Raisin City?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Raisin City have in September?
What is the UV index reading in September?
Average temperature in September
Raisin City, CA
- Average high temperature in September: 93.7°F
The warmest month (with the highest average high temperature) is July (101.8°F).
The month with the lowest average high temperature is December (57.2°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is December (42.6°F).
Average pressure in September
Raisin City, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Raisin City, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is June (7.2mph).
The calmest months (with the lowest average wind speed) are January, November and December (4.8mph).
Average humidity in September
Raisin City, CA
- Average humidity in September: 33%
The months with the highest relative humidity are January and December (66%).
The month with the lowest relative humidity is July (29%).
Average rainfall in September
Raisin City, CA
- Average rainfall in September: 0.16"
The wettest months (with the highest rainfall) are January and March (1.73").
The driest months (with the least rainfall) are June and August (0.08").
Average rainfall days in September
Raisin City, CA
- Average rainfall days in September: 1.9 days
The month with the highest number of rainy days is March (10.1 days).
The month with the least rainy days is August (1 days).
Average daylight in September /
Average sunshine in September
Raisin City, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 11h and 1min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Raisin City, CA
- Average sunshine days in September: 27.1 days
The month with the most sunshine days is August (29.3 days).
The month with the least sunshine days is February (19.4 days).
Average UV index in September
Raisin City, CA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, November and December (UV index 3).
Average cloud cover in September
Raisin City, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 29).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Raisin 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).
Raisin City, California, USA
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