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
Rolling Hills experiences peak temperatures, averaging a high-temperature of 73.2°F (22.9°C) during August and September.Humidity
In September, the average relative humidity is 72%.Rainfall
In Rolling Hills, in September, during 3.5 rainfall days, 0.28" (7mm) of precipitation is typically accumulated. In Rolling Hills, during the entire year, the rain falls for 62.1 days and collects up to 8.62" (219mm) of precipitation.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:18 pm. On the last day of September, in Rolling Hills, California, sunrise is at 6:47 am and sunset at 6:38 pm PDT.
Sunshine
In September, the average sunshine in Rolling Hills is 10.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Undertake protective steps - Preventing sun damage is advised. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What month is the hottest in Rolling Hills?
What is the temperature in September in Rolling Hills?
What is the average humidity in September in Rolling Hills?
How much does it rain in Rolling Hills in September?
What is the average length of the day in September in Rolling Hills?
What time are sunrise and sunset in September in Rolling Hills?
How many hours of sunshine does Rolling Hills have in September?
How high is the UV index in September in Rolling Hills?
Average temperature in September
Rolling Hills, CA
- Average high temperature in September: 73.2°F
The warmest months (with the highest average high temperature) are August and September (73.2°F).
The month with the lowest average high temperature is February (61.5°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is September (64.2°F).
The coldest month (with the lowest average low temperature) is February (53.2°F).
Average pressure in September
Rolling Hills, CA
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.9"Hg).
Average wind speed in September
Rolling Hills, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in September
Rolling Hills, CA
- Average humidity in September: 72%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is November (61%).
Average rainfall in September
Rolling Hills, CA
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is January (1.73").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
Rolling Hills, CA
- Average rainfall days in September: 3.5 days
The month with the highest number of rainy days is March (7.8 days).
The month with the least rainy days is August (3.1 days).
Average daylight in September /
Average sunshine in September
Rolling Hills, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Rolling Hills, CA
- Average sunshine days in September: 22.3 days
The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is June (20 days).
Average UV index in September
Rolling Hills, CA
- Average UV index in September: 5
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover in September
Rolling Hills, CA
- Average cloud cover in September: 13
The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Rolling Hills, 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).
Rolling Hills, California, USA
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