September weather forecast and climate
Copic, CA

Weather in September

September, the first month of the autumn, in Copic, is still a warm month, with average temperature ranging between min 44.1°F (6.7°C) and max 74.1°F (23.4°C).

Temperature

In Copic, California, the average high-temperature marginally drops, from a moderately hot 82.8°F (28.2°C) in August, to a still warm 74.1°F (23.4°C). In September, in Copic, the average low-temperature is 44.1°F (6.7°C).

Humidity

In Copic, California, the average relative humidity in September is 51%.

Rainfall

In Copic, it is raining for 4 days, with typically 0.39" (10mm) of accumulated precipitation. In Copic, during the entire year, the rain falls for 97.4 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow. In Copic, during the entire year, snow falls for 64.6 days, and aggregates up to 38.31" (973mm) of snow.

Daylight

In Copic, the average length of the day in September is 12.5h.

Sunshine

In September, the average sunshine is 11.1h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Copic?

The average high-temperature, in September, is 74.1°F (23.4°C), while the average low-temperature is 44.1°F (6.7°C).

What is the average humidity in September in Copic?

The average relative humidity in September in Copic is 51%.

How much does it rain in Copic in September?

In Copic, during September, the rain falls for 4 days and regularly aggregates up to 0.39" (10mm) of precipitation.

When does it start to snow in Copic?

September is the first month it typically snows in Copic, California. Throughout September, in the average 0.2 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Copic have in September?

The average length of the day in September is 12.5h.

How many hours of sunshine does Copic have in September?

The average sunshine in September in Copic is 11.1h.

What is the UV index intensity in September in Copic?

In Copic, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Copic, CA

Average temperature in September - Copic, CA
  • Average high temperature in September: 74.1°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (37.2°F).

  • Average low temperature in September: 44.1°F

The month with the highest average low temperature is August (49.3°F).
The coldest month (with the lowest average low temperature) is December (25°F).

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Average pressure in September
Copic, CA

Average pressure in September - Copic, CA
  • Average pressure in September: 29.98"

The month with the highest atmospheric pressure is January (30.18").
Months with the lowest atmospheric pressure are June, July and August (29.96").

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Average wind speed in September
Copic, CA

Average wind speed in September - Copic, CA
  • Average wind speed in September: 5.1mph

The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in September
Copic, CA

Average humidity in September - Copic, CA
  • Average humidity in September: 51%

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in September
Copic, CA

Average rainfall in September - Copic, CA
  • Average rainfall in September: 0.39"

The wettest month (with the highest rainfall) is December (1.97").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in September
Copic, CA

Average rainfall days in September - Copic, CA
  • Average rainfall days in September: 4 days

The month with the highest number of rainy days is March (12.5 days).
The month with the least rainy days is August (3.1 days).

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Average snowfall in September
Copic, CA

Average snowfall in September - Copic, CA
  • Average snowfall in September: 0.08"

The month with the highest snowfall is December (9.57").
Months with the least snowfall are July and August (0").

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Average snowfall days in September
Copic, CA

Average snowfall days in September - Copic, CA
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (13.4 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Copic, CA

Average daylight in September / Average sunshine in September - Copic, CA
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with the shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 11.1h

The month with the most sunshine is July (Average sunshine: 12.1h).
The month with the least sunshine is January (Average sunshine: 5.4h).

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Average sunshine days in September
Copic, CA

Average sunshine days in September - Copic, CA
  • Average sunshine days in September: 24.8 days

The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11.5 days).

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Average UV index in September
Copic, CA

Average UV index in September - Copic, CA
  • Average UV index in September: 4

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

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Average cloud cover in September
Copic, CA

Average cloud cover in September - Copic, CA
  • Average cloud cover in September: 14

Months with the most cloud cover are March and December (Cloud cover 44).
Months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in September
Copic, CA

Average visibility in September - Copic, CA
  • Average visibility in September: 6mi

Months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

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