September weather forecast
Canyondam, CA

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Weather in September

September, the first month of the autumn in Canyondam, is also a moderately hot month, with an average temperature fluctuating between 74.7°F (23.7°C) and 44.2°F (6.8°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from 82.4°F (28°C) in August to a still moderately hot 74.7°F (23.7°C). From significant daily highs, Canyondam's nights in September cool down to an average low-temperature of 44.2°F (6.8°C).

Humidity

In September, the average relative humidity in Canyondam is 47%.

Rainfall

In Canyondam, California, during September, the rain falls for 4.4 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Canyondam, during the entire year, the rain falls for 94 days and collects up to 31.42" (798mm) of precipitation.

Snowfall

Months with snowfall in Canyondam, California, are January through June, September through December. September is the first month it typically snows in Canyondam, California. Throughout September, in the average 0.3 snowfall days, it receives 0.43" (11mm) of snow. Throughout the year, in Canyondam, there are 64.4 snowfall days, and 126.02" (3201mm) of snow is accumulated.

Daylight

The average length of the day in September in Canyondam is 12h and 26min.
On the first day of the month, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:00 am and sunset at 6:47 pm PDT.

Sunshine

In September, the average sunshine is 11.2h.

UV index

The average daily maximum UV index in September in Canyondam is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests this advice:
Take precautions - Protection against skin and eye damage is obliged. To guard against the harmful effects of the Sun, minimize exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What is the average September temperature in Canyondam?

The high-temperature, in September, in Canyondam, records 74.7°F (23.7°C), while the low-temperature is 44.2°F (6.8°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in August is computed to be 82.4°F (28°C).

What is the average humidity in September in Canyondam?

In September, the average relative humidity in Canyondam is 47%.

How many days does it rain in September in Canyondam?

In Canyondam, in September, during 4.4 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

When does it start snowing in Canyondam?

September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.43" (11mm) of snow.

How many hours of daylight does Canyondam have in September?

The average day length in September is 12h and 26min.

When are sunrise and sunset in September in Canyondam?

In September, on the first day of the month, sunrise is at 6:32 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:47 pm PDT.

How many hours of sunshine does Canyondam have in September?

The average sunshine duration in September is 11.2h.

How high is the UV index in September in Canyondam?

The average daily maximum UV index in September in Canyondam is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Canyondam, CA

Average temperature in September - Canyondam, CA
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (39.4°F).

  • Average low temperature in September: 44.2°F

The month with the highest average low temperature is July (48.9°F).
The coldest month (with the lowest average low temperature) is December (24.3°F).

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Average pressure in September
Canyondam, CA

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

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Canyondam, CA

Average wind speed in September - Canyondam, 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 (4.8mph).

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Average humidity in September
Canyondam, CA

Average humidity in September - Canyondam, CA
  • Average humidity in September: 47%

The month with the highest relative humidity is March (82%).
The month with the lowest relative humidity is July (41%).

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Average rainfall in September
Canyondam, CA

Average rainfall in September - Canyondam, CA
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is March (5.51").
The driest month (with the least rainfall) is July (0.24").

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Average rainfall days in September
Canyondam, CA

Average rainfall days in September - Canyondam, CA
  • Average rainfall days in September: 4.4 days

The months with the highest number of rainy days are March and April (13.2 days).
The month with the least rainy days is August (2.4 days).

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Average snowfall in September
Canyondam, CA

Average snowfall in September - Canyondam, CA
  • Average snowfall in September: 0.43"

The month with the highest snowfall is February (27.64").
The months with the least snowfall are July and August (0").

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Average snowfall days in September
Canyondam, CA

Average snowfall days in September - Canyondam, CA
  • Average snowfall days in September: 0.3 days

The month with the highest number of snowfall days is March (13.8 days).
The months with the least snowfall days are July and August (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days in September
Canyondam, CA

Average sunshine days in September - Canyondam, CA
  • Average sunshine days in September: 23.9 days

The month with the most sunshine days is August (26.6 days).
The month with the least sunshine days is March (11.2 days).

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Average UV index in September
Canyondam, CA

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in September
Canyondam, CA

Average cloud cover in September - Canyondam, CA
  • Average cloud cover in September: 11

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 6).

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Average visibility in September
Canyondam, CA

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

The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).

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Canyondam, California, USA

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