September weather forecast
Big Creek, CA

Share

Weather in September

The first month of the autumn, September, is also a moderately hot month in Big Creek, California, with an average temperature fluctuating between 48.6°F (9.2°C) and 73.4°F (23°C).

Temperature

A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 79.5°F (26.4°C) in August to a still warm 73.4°F (23°C). September nights in Big Creek showcase a dramatic shift from daytime highs to an average temperature of 48.6°F (9.2°C).

Humidity

In September, the average relative humidity in Big Creek is 37%.

Rainfall

In Big Creek, in September, it is raining for 3.4 days, with typically 0.28" (7mm) of accumulated precipitation. In Big Creek, during the entire year, the rain falls for 49.9 days and collects up to 22.09" (561mm) of precipitation.

Snowfall

Months with snowfall in Big Creek are January through June, September through December. September is the first month it typically snows in Big Creek. Throughout September, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 53.9 snowfall days, and 134.09" (3406mm) of snow is accumulated.

Daylight

In Big Creek, the average length of the day in September is 12h and 24min.
On the first day of September, sunrise is at 6:28 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:41 pm PDT.

Sunshine

The average sunshine in September is 11.1h.

UV index

The average daily maximum UV index in September in Big Creek is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
[Resources]

Frequently asked questions

What is the usual temperature for Big Creek in September?

In Big Creek, in September, the average high-temperature is 73.4°F (23°C), and the average low-temperature is 48.6°F (9.2°C).

What is the average humidity in September in Big Creek?

The average relative humidity in September in Big Creek is 37%.

How much does it rain in Big Creek in September?

In Big Creek, during September, the rain falls for 3.4 days and regularly aggregates up to 0.28" (7mm) of precipitation.

When does it start to snow in Big Creek?

September is the first month it typically snows in Big Creek. Throughout September, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Big Creek have in September?

The average day length in September in Big Creek, California, is 12h and 24min.

What time are sunrise and sunset in September in Big Creek?

In September, on the first day of the month, sunrise is at 6:28 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:41 pm PDT.

How long on average sun shines in September in Big Creek?

In Big Creek, California, the average sunshine duration in September is 11.1h.

What is the UV index intensity in September in Big Creek?

The average daily maximum UV index in September in Big Creek is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Big Creek, CA

Average temperature in September - Big Creek, CA
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (41.7°F).

  • Average low temperature in September: 48.6°F

The month with the highest average low temperature is July (54.5°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).

[Resources]

Average pressure in September
Big Creek, CA

Average pressure in September - Big Creek, CA
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

[Resources]

Average wind speed in September
Big Creek, CA

Average wind speed in September - Big Creek, CA
  • Average wind speed in September: 4.7mph

The windiest month (with the highest average wind speed) is March (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.5mph).

[Resources]

Average humidity in September
Big Creek, CA

Average humidity in September - Big Creek, CA
  • Average humidity in September: 37%

The month with the highest relative humidity is March (72%).
The month with the lowest relative humidity is August (34%).

[Resources]

Average rainfall in September
Big Creek, CA

Average rainfall in September - Big Creek, CA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is February (4.13").
The driest month (with the least rainfall) is August (0.24").

[Resources]

Average rainfall days in September
Big Creek, CA

Average rainfall days in September - Big Creek, CA
  • Average rainfall days in September: 3.4 days

The month with the highest number of rainy days is May (8.2 days).
The month with the least rainy days is January (2.1 days).

[Resources]

Average snowfall in September
Big Creek, CA

Average snowfall in September - Big Creek, CA
  • Average snowfall in September: 0.08"

The month with the highest snowfall is February (28.46").
The months with the least snowfall are July and August (0").

[Resources]

Average snowfall days in September
Big Creek, CA

Average snowfall days in September - Big Creek, CA
  • Average snowfall days in September: 0.3 days

The month with the highest number of snowfall days is March (10.8 days).
The months with the least snowfall days are July and August (0 days).

[Resources]

Average daylight in September /
Average sunshine in September
Big Creek, CA

Average daylight in September / Average sunshine in September - Big Creek, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • 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 February and December (Average sunshine: 6h and 30min).

[Resources]

Average sunshine days in September
Big Creek, CA

Average sunshine days in September - Big Creek, CA
  • Average sunshine days in September: 24.5 days

The month with the most sunshine days is October (27.2 days).
The month with the least sunshine days is April (18 days).

[Resources]

Average UV index in September
Big Creek, CA

Average UV index in September - Big Creek, CA
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

[Resources]

Average cloud cover in September
Big Creek, CA

Average cloud cover in September - Big Creek, CA
  • Average cloud cover in September: 6

The month with the most cloud cover is March (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 5).

[Resources]

Average visibility in September
Big Creek, CA

Average visibility in September - Big Creek, 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]

Big Creek, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location