September weather forecast and climate
Cedar Ridge, CA

Weather in September

The first month of the autumn, September, is also a moderately hot month in Cedar Ridge, California, with average temperature varying between 83.8°F (28.8°C) and 56.5°F (13.6°C).

Temperature

In September, the average high-temperature marginally drops, from a hot 89.2°F (31.8°C) in August, to a warm 83.8°F (28.8°C). In September, in Cedar Ridge, the average low-temperature is 56.5°F (13.6°C).

Heat index

In September, the average heat index is evaluated at 83.1°F (28.4°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, metabolic differences, pregnancy, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity in Cedar Ridge, California, is 40%.

Rainfall

In September, the rain falls for 2.3 days. Throughout September, 0.28" (7mm) of precipitation is accumulated. Throughout the year, there are 82 rainfall days, and 33.11" (841mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Cedar Ridge.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Cedar Ridge, the average sunshine is 11.2h.

UV index

In September, the average daily maximum UV index in Cedar Ridge is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for 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.
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FAQ

What is the temperature in September in Cedar Ridge?

In September, in Cedar Ridge, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 56.5°F (13.6°C). In September, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 83.1°F (28.4°C).

What is the average humidity in September in Cedar Ridge?

In September, the average relative humidity is 40%.

How many days does it rain in September in Cedar Ridge?

In Cedar Ridge, in September, during 2.3 rainfall days, 0.28" (7mm) of precipitation is typically accumulated.

When it does not snow in Cedar Ridge?

In Cedar Ridge snow does not fall in June through October.

What is the average length of the day in September in Cedar Ridge?

The average length of the day in September in Cedar Ridge, California, is 12.4h.

How many hours of sunshine does Cedar Ridge have in September?

In September, the average sunshine in Cedar Ridge, California, is 11.2h.

How high is the UV index in September in Cedar Ridge?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk from the exposure to the Sun's UV rays.

Average temperature in September
Cedar Ridge, CA

Average temperature in September - Cedar Ridge, CA
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (51.3°F).

  • Average low temperature in September: 56.5°F

The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

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Average pressure in September
Cedar Ridge, CA

Average pressure in September - Cedar Ridge, CA
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in September
Cedar Ridge, CA

Average wind speed in September - Cedar Ridge, CA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Cedar Ridge, CA

Average humidity in September - Cedar Ridge, CA
  • Average humidity in September: 40%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in September
Cedar Ridge, CA

Average rainfall in September - Cedar Ridge, CA
  • Average rainfall in September: 0.28"

The wettest month (with the highest rainfall) is March (6.57").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Cedar Ridge, CA

Average rainfall days in September - Cedar Ridge, CA
  • Average rainfall days in September: 2.3 days

The month with the highest number of rainy days is March (15.1 days).
The month with the least rainy days is July (1.1 days).

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Average snowfall in September
Cedar Ridge, CA

Average snowfall in September - Cedar Ridge, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (6.42").
Months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Cedar Ridge, CA

Average snowfall days in September - Cedar Ridge, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is March (2.4 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Cedar Ridge, CA

Average daylight in September / Average sunshine in September - Cedar Ridge, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 11.2h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is January (Average sunshine: 5.7h).

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Average sunshine days in September
Cedar Ridge, CA

Average sunshine days in September - Cedar Ridge, CA
  • Average sunshine days in September: 26.9 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).

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Average UV index in September
Cedar Ridge, CA

Average UV index in September - Cedar Ridge, CA
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).

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Average cloud cover in September
Cedar Ridge, CA

Average cloud cover in September - Cedar Ridge, CA
  • Average cloud cover in September: 8

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in September
Cedar Ridge, CA

Average visibility in September - Cedar Ridge, CA
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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