September weather forecast
Apple Valley, CA

Weather in September

September, the first month of the autumn in Apple Valley, is still a warm month, with an average temperature ranging between min 64.4°F (18°C) and max 85.8°F (29.9°C).

Temperature

In Apple Valley, the average high-temperature in September marginally drops from a tropical 92.1°F (33.4°C) in August to a warm 85.8°F (29.9°C). In Apple Valley, California, the average low-temperature is 64.4°F (18°C).

Humidity

The average relative humidity in September in Apple Valley is 30%.

Rainfall

In Apple Valley, it is raining for 3 days, with typically 0.28" (7mm) of accumulated precipitation. Throughout the year, there are 46.2 rainfall days, and 4.65" (118mm) of precipitation is accumulated.

Snowfall

In Apple Valley, California, snow does not fall in May through October.

Daylight

In Apple Valley, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:15 pm. On the last day of September, in Apple Valley, California, sunrise is at 6:42 am and sunset at 6:34 pm PDT.

Sunshine

In September, the average sunshine in Apple Valley is 10.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
[Resources]

FAQ

What is the temperature in September in Apple Valley?

The average high-temperature, in September, in Apple Valley, is 85.8°F (29.9°C), while the average low-temperature is 64.4°F (18°C).

What is the average humidity in September in Apple Valley?

In September, the average relative humidity is 30%.

How much does it rain in Apple Valley in September?

In Apple Valley, California, in September, during 3 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

When it does not snow in Apple Valley?

May through October are months without snowfall in Apple Valley.

How many hours of daylight does Apple Valley have in September?

In Apple Valley, California, the average day length in September is 12h and 22min.

What time are sunrise and sunset in September in Apple Valley?

On the first day of September in Apple Valley, sunrise is at 6:21 am and sunset at 7:15 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:34 pm PDT.

How many hours of sunshine does Apple Valley have in September?

In Apple Valley, California, the average sunshine duration in September is 10.6h.

What is the UV index reading in September in Apple Valley?

In Apple Valley, California, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Apple Valley, CA

Average temperature in September - Apple Valley, CA
  • Average high temperature in September: 85.8°F

The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (53.2°F).

  • Average low temperature in September: 64.4°F

The month with the highest average low temperature is August (69.4°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

[Resources]

Average pressure in September
Apple Valley, CA

Average pressure in September - Apple Valley, CA
  • Average pressure in September: 29.86"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).

[Resources]

Average wind speed in September
Apple Valley, CA

Average wind speed in September - Apple Valley, CA
  • Average wind speed in September: 7.3mph

The windiest month (with the highest average wind speed) is May (10.4mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).

[Resources]

Average humidity in September
Apple Valley, CA

Average humidity in September - Apple Valley, CA
  • Average humidity in September: 30%

The month with the highest relative humidity is December (51%).
The month with the lowest relative humidity is August (26%).

[Resources]

Average rainfall in September
Apple Valley, CA

Average rainfall in September - Apple Valley, CA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is December (0.87").
The driest month (with the least rainfall) is June (0.04").

[Resources]

Average rainfall days in September
Apple Valley, CA

Average rainfall days in September - Apple Valley, CA
  • Average rainfall days in September: 3 days

The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is June (0.8 days).

[Resources]

Average snowfall in September
Apple Valley, CA

Average snowfall in September - Apple Valley, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is November (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Apple Valley, CA

Average snowfall days in September - Apple Valley, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Apple Valley, CA

Average daylight in September / Average sunshine in September - Apple Valley, CA
  • Average daylight in September: 12h and 22min

The month with the longest days is June (Average daylight: 14h and 26min).
The month with the shortest days is December (Average daylight: 9h and 53min).

  • Average sunshine in September: 10h and 36min

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: 7h and 6min).

[Resources]

Average sunshine days in September
Apple Valley, CA

Average sunshine days in September - Apple Valley, CA
  • Average sunshine days in September: 25.9 days

The month with the most sunshine days is June (29 days).
The month with the least sunshine days is February (22.2 days).

[Resources]

Average UV index in September
Apple Valley, CA

Average UV index in September - Apple Valley, 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).

[Resources]

Average cloud cover in September
Apple Valley, CA

Average cloud cover in September - Apple Valley, CA
  • Average cloud cover in September: 6

The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).

[Resources]

Average visibility in September
Apple Valley, CA

Average visibility in September - Apple Valley, 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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location