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
As September begins, there is a minor decrease in the average high-temperature, softly falling from a sweltering 96.8°F (36°C) in August to a tropical 90.5°F (32.5°C). Throughout September, Greenacres braces for a considerable drop from daytime highs, with an average low-temperature of 61.5°F (16.4°C).Humidity
The average relative humidity in September is 33%.Rainfall
The months with the least rainfall are June, August and September Rain falls for 1.7 days and accumulates 0.08" (2mm) of rain.Snowfall
In Greenacres, snow does not fall in January, March through December.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:22 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:41 pm PDT.
Sunshine
In September, the average sunshine is 11.1h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Deter overexposure. Protecting against the sun's effects is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September in Greenacres?
What is the driest month?
How much does it rain in September?
When it does not snow in Greenacres?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Greenacres have in September?
What is the UV index intensity in September?
Average temperature in September
Greenacres, CA
- Average high temperature in September: 90.5°F
The warmest month (with the highest average high temperature) is July (97.5°F).
The month with the lowest average high temperature is December (58.5°F).
- Average low temperature in September: 61.5°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).
Average pressure in September
Greenacres, CA
- Average pressure in September: 29.9"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Greenacres, CA
- Average wind speed in September: 4.3mph
The windiest months (with the highest average wind speed) are June and July (5mph).
The calmest months (with the lowest average wind speed) are November and December (3.9mph).
Average humidity in September
Greenacres, CA
- Average humidity in September: 33%
The months with the highest relative humidity are January, February and December (59%).
The month with the lowest relative humidity is August (30%).
Average rainfall in September
Greenacres, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is December (1.02").
The driest months (with the least rainfall) are June, August and September (0.08").
Average rainfall days in September
Greenacres, CA
- Average rainfall days in September: 1.7 days
The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is August (0.9 days).
Average snowfall in September
Greenacres, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Greenacres, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Greenacres, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 1min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Greenacres, CA
- Average sunshine days in September: 27.9 days
The month with the most sunshine days is August (28.7 days).
The month with the least sunshine days is February (21.2 days).
Average UV index in September
Greenacres, 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
Greenacres, CA
- Average cloud cover in September: 5
The month with the most cloud cover is March (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 4).
Average visibility in September
Greenacres, 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).
Greenacres, California, USA
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