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
Palmdale's September weather features a light decline in high-temperatures, reducing from a tropical 91°F (32.8°C) in August to a warm 85.3°F (29.6°C). Palmdale observes a distinct decrease from peak daytime temperatures, with an average low-temperature of 60.8°F (16°C) throughout the month of September.Humidity
The average relative humidity in September in Palmdale is 36%.Rainfall
In Palmdale, in September, it is raining for 2.5 days, with typically 0.2" (5mm) of accumulated precipitation. Throughout the year, there are 43.8 rainfall days, and 5.24" (133mm) of precipitation is accumulated.Snowfall
January, April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 6:26 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:37 pm PDT.
Sunshine
The average sunshine in September is 10.8h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Palmdale have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Palmdale, CA
- Average high temperature in September: 85.3°F
The warmest months (with the highest average high temperature) are July and August (91°F).
The month with the lowest average high temperature is December (54.5°F).
- Average low temperature in September: 60.8°F
The month with the highest average low temperature is August (65.1°F).
The coldest month (with the lowest average low temperature) is December (38.1°F).
Average pressure in September
Palmdale, CA
- Average pressure in September: 29.88"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Palmdale, CA
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is May (9.1mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).
Average humidity in September
Palmdale, CA
- Average humidity in September: 36%
The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is August (33%).
Average rainfall in September
Palmdale, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is December (1.14").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Palmdale, CA
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (1.2 days).
Average snowfall in September
Palmdale, CA
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.81").
The months with the least snowfall are January, April, May, June, July, August, September and October (0").
Average snowfall days in September
Palmdale, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.6 days).
The months with the least snowfall days are January, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Palmdale, 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: 9h and 54min).
- Average sunshine in September: 10h and 5min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 48min).
Average sunshine days in September
Palmdale, CA
- Average sunshine days in September: 26.5 days
The month with the most sunshine days is June (27.8 days).
The month with the least sunshine days is February (23.3 days).
Average UV index in September
Palmdale, 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, February, November and December (UV index 3).
Average cloud cover in September
Palmdale, CA
- Average cloud cover in September: 5
The month with the most cloud cover is December (Cloud cover 22).
The months with the least cloud cover are August and September (Cloud cover 5).
Average visibility in September
Palmdale, 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).
Palmdale, California, USA
Weather forecast for your location
2. Allow the app to use your location