September weather forecastAntelope, CA
September
Weather in September
The first month of the autumn, September, is also a hot month in Antelope, California, with an average temperature fluctuating between 59°F (15°C) and 88°F (31.1°C).Temperature
September begins with an average high-temperature of a still tropical 88°F (31.1°C), reflecting close similarity to the preceding month. Nightfall in September introduces a considerable dip in temperature in Antelope, settling at an average of 59°F (15°C).Heat index
The heat index for September is calculated to be a hot 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Understand that the heat index values take into account shaded locations and mild winds. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The average relative humidity in September is 42%.Rainfall
In Antelope, California, during September, the rain falls for 2.2 days and regularly aggregates up to 0.2" (5mm) of precipitation. In Antelope, during the entire year, the rain falls for 77.9 days and collects up to 18.78" (477mm) of precipitation.Daylight
In Antelope, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm PDT.
Sunshine
In Antelope, the average sunshine in September is 11.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Antelope, CA
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (54.1°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in September
Antelope, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Antelope, CA
- Average wind speed in September: 4mph
The windiest month (with the highest average wind speed) is February (5.6mph).
The calmest month (with the lowest average wind speed) is September (4mph).
Average humidity in September
Antelope, CA
- Average humidity in September: 42%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (41%).
Average rainfall in September
Antelope, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is March (3.54").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Antelope, CA
- Average rainfall days in September: 2.2 days
The month with the highest number of rainy days is March (13.8 days).
The months with the least rainy days are July and August (1.1 days).
Average daylight in September /
Average sunshine in September
Antelope, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Antelope, CA
- Average sunshine days in September: 27.2 days
The month with the most sunshine days is July (29.6 days).
The month with the least sunshine days is March (16.2 days).
Average UV index in September
Antelope, CA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Antelope, CA
- Average cloud cover in September: 8
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Antelope, 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).
