September weather forecast
Ukiah Rancheria, CA

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Weather in September

September, the first month of the autumn in Ukiah Rancheria, is also a moderately hot month, with an average temperature ranging between max 80.8°F (27.1°C) and min 51.4°F (10.8°C).

Temperature

The arrival of September records an average high-temperature of a still warm 80.8°F (27.1°C), closely related to the 84.7°F (29.3°C) observed in August. Ukiah Rancheria encounters a substantial decline from its daily high to a low-temperature of 51.4°F (10.8°C) during September nights.

Heat index

The heat index for September is appraised at 82.4°F (28°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

July and September, with an average relative humidity of 58%, are the least humid months.

Rainfall

In Ukiah Rancheria, in September, it is raining for 2.5 days, with typically 0.2" (5mm) of accumulated precipitation. In Ukiah Rancheria, during the entire year, the rain falls for 83.3 days and collects up to 17.72" (450mm) of precipitation.

Snowfall

January, March through December are months without snowfall.

Daylight

In Ukiah Rancheria, the average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:42 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:56 pm PDT.

Sunshine

In Ukiah Rancheria, the average sunshine in September is 10.9h.

UV index

In Ukiah Rancheria, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise prevention - Warding off sunburn is urged. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the average September temperature in Ukiah Rancheria?

The average high-temperature and low-temperature in Ukiah Rancheria during September are 80.8°F (27.1°C) and 51.4°F (10.8°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 82.4°F (28°C).

What is the least humid month in Ukiah Rancheria?

July and September, with an average relative humidity of 58%, are the least humid months in Ukiah Rancheria, California.

What is the average humidity in September in Ukiah Rancheria?

In September, the average relative humidity in Ukiah Rancheria is 58%.

How much does it rain in Ukiah Rancheria in September?

In Ukiah Rancheria, California, during September, the rain falls for 2.5 days and regularly aggregates up to 0.2" (5mm) of precipitation.

When it does not snow in Ukiah Rancheria?

In Ukiah Rancheria, California, snow does not fall in January, March through December.

What is the average length of the day in September in Ukiah Rancheria?

In Ukiah Rancheria, the average day length in September is 12h and 26min.

When are sunrise and sunset in September in Ukiah Rancheria?

In September, on the first day of the month, sunrise is at 6:42 am and sunset at 7:42 pm. On the last day of the month, in Ukiah Rancheria, California, sunrise is at 7:08 am and sunset at 6:56 pm PDT.

How many hours of sunshine does Ukiah Rancheria have in September?

The average sunshine duration in September in Ukiah Rancheria, California, is 10.9h.

What is the UV index reading in September in Ukiah Rancheria?

The average daily maximum UV index in September in Ukiah Rancheria is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average max. wind speed
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
Ukiah Rancheria, CA

Average temperature in September - Ukiah Rancheria, CA
  • Average high temperature in September: 80.8°F

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).

  • Average low temperature in September: 51.4°F

The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).

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Average pressure in September
Ukiah Rancheria, CA

Average pressure in September - Ukiah Rancheria, CA
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).

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Average wind speed in September
Ukiah Rancheria, CA

Average wind speed in September - Ukiah Rancheria, CA
  • Average wind speed in September: 4.4mph

The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

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Average humidity in September
Ukiah Rancheria, CA

Average humidity in September - Ukiah Rancheria, CA
  • Average humidity in September: 58%

The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).

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Average rainfall in September
Ukiah Rancheria, CA

Average rainfall in September - Ukiah Rancheria, CA
  • Average rainfall in September: 0.2"

The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in September
Ukiah Rancheria, CA

Average rainfall days in September - Ukiah Rancheria, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).

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Average snowfall in September
Ukiah Rancheria, CA

Average snowfall in September - Ukiah Rancheria, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Ukiah Rancheria, CA

Average snowfall days in September - Ukiah Rancheria, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in September /
Average sunshine in September
Ukiah Rancheria, CA

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 10h and 5min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

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Average sunshine days in September
Ukiah Rancheria, CA

Average sunshine days in September - Ukiah Rancheria, CA
  • Average sunshine days in September: 26.9 days

The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in September
Ukiah Rancheria, CA

Average UV index in September - Ukiah Rancheria, CA
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).

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Average cloud cover in September
Ukiah Rancheria, CA

Average cloud cover in September - Ukiah Rancheria, CA
  • Average cloud cover in September: 11

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in September
Ukiah Rancheria, CA

Average visibility in September - Ukiah Rancheria, CA
  • Average visibility in September: 6mi

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

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Ukiah Rancheria, California, USA

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