September weather forecast
Dorris, CA

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Weather in September

September, the first month of the autumn in Dorris, is also a moderately hot month, with temperature in the range of an average high of 74.1°F (23.4°C) and an average low of 44.1°F (6.7°C).

Temperature

September heralds a minor drop in average high-temperature, sliding from August's moderately hot 82.8°F (28.2°C) to a still warm 74.1°F (23.4°C). Dorris's nights during September are marked by a pronounced drop from daytime temperatures, experiencing an average low of 44.1°F (6.7°C).

Humidity

In September, the average relative humidity is 51%.

Rainfall

In Dorris, California, in September, during 4 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. In Dorris, during the entire year, the rain falls for 97.4 days and collects up to 12.01" (305mm) of precipitation.

Snowfall

Months with snowfall in Dorris 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. Throughout the year, there are 64.6 snowfall days, and 38.31" (973mm) of snow is accumulated.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of September, sunrise is at 7:04 am and sunset at 6:50 pm PDT.

Sunshine

In Dorris, the average sunshine in September is 11.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The daily maximum UV index of 4 in September interprets into the following advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

What are September temperatures in Dorris?

The high-temperature in Dorris during September is 74.1°F (23.4°C) and the low-temperature is 44.1°F (6.7°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 82.4°F (28°C).

What is the average humidity in September in Dorris?

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

How much does it rain in Dorris in September?

In September, in Dorris, the rain falls for 4 days. Throughout September, 0.39" (10mm) of precipitation is accumulated.

When does it start snowing in Dorris?

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

What is the average length of the day in September in Dorris?

In September, the average day length is 12h and 28min.

When is the sunrise / sunset in September in Dorris?

On the first day of September in Dorris, California, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm PDT.

How long on average sun shines in September in Dorris?

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

What is the UV index reading in September in Dorris?

The average daily maximum UV index in September in Dorris, California, is 4. A UV Index reading of 3 to 5 represents a medium health risk 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
Dorris, CA

Average temperature in September - Dorris, 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).

Average pressure in September
Dorris, CA

Average pressure in September - Dorris, CA
  • Average pressure in September: 29.98"Hg

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

Average wind speed in September
Dorris, CA

Average wind speed in September - Dorris, 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).

Average humidity in September
Dorris, CA

Average humidity in September - Dorris, 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%).

Average rainfall in September
Dorris, CA

Average rainfall in September - Dorris, 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").

Average rainfall days in September
Dorris, CA

Average rainfall days in September - Dorris, 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).

Average snowfall in September
Dorris, CA

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

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

Average snowfall days in September
Dorris, CA

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

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

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

Average daylight in September / Average sunshine in September - Dorris, CA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • 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 24min).

Average sunshine days in September
Dorris, CA

Average sunshine days in September - Dorris, 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).

Average UV index in September
Dorris, CA

Average UV index in September - Dorris, 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).

Average cloud cover in September
Dorris, CA

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

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

Average visibility in September
Dorris, CA

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

The 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).

Dorris, California, USA

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