September weather forecast
Seeley, CA

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Weather in September

The first month of the autumn, September, is still a very hot month in Seeley, California, with an average temperature ranging between max 97.7°F (36.5°C) and min 78.6°F (25.9°C).

Temperature

The move into September indicates a slight reduction in the average high-temperature, down from August's blisteringly hot 104.9°F (40.5°C) to a torrid 97.7°F (36.5°C). Throughout the month of September, Seeley observes an average nighttime temperature of 78.6°F (25.9°C).

Humidity

In September, the average relative humidity in Seeley, California, is 26%.

Rainfall

In Seeley, in September, it is raining for 4.5 days, with typically 0.35" (9mm) of accumulated precipitation. In Seeley, California, during the entire year, the rain falls for 34.3 days and collects up to 3.27" (83mm) of precipitation.

Daylight

In Seeley, California, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:07 pm. On the last day of September, in Seeley, sunrise is at 6:36 am and sunset at 6:28 pm PDT.

Sunshine

The average sunshine in September is 10.2h.

UV index

In Seeley, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, an average UV index of 7 transforms into the following instructions:
Inhibit overexposure. Warding off sun damage is of utmost importance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot does it get in Seeley in September?

The high-temperature in Seeley during September is 97.7°F (36.5°C) and the low-temperature is 78.6°F (25.9°C).

What is the average humidity in September in Seeley?

In September, the average relative humidity in Seeley is 26%.

How much does it rain in Seeley in September?

In Seeley, in September, during 4.5 rainfall days, 0.35" (9mm) of precipitation is typically accumulated.

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

In September, the average day length in Seeley is 12h and 22min.

When are sunrise and sunset in September in Seeley?

In September, on the first day of the month, sunrise is at 6:17 am and sunset at 7:07 pm. On the last day of the month, in Seeley, California, sunrise is at 6:36 am and sunset at 6:28 pm PDT.

How long on average sun shines in September in Seeley?

In Seeley, California, the average sunshine duration in September is 10.2h.

What is the UV index reading in September in Seeley?

The average daily maximum UV index in September in Seeley, California, is 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Seeley, CA

Average temperature in September - Seeley, CA
  • Average high temperature in September: 97.7°F

The warmest month (with the highest average high temperature) is July (105.4°F).
The month with the lowest average high temperature is December (65.8°F).

  • Average low temperature in September: 78.6°F

The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).

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Average pressure in September
Seeley, CA

Average pressure in September - Seeley, CA
  • Average pressure in September: 29.82"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).

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Average wind speed in September
Seeley, CA

Average wind speed in September - Seeley, CA
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is January (5mph).

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Average humidity in September
Seeley, CA

Average humidity in September - Seeley, CA
  • Average humidity in September: 26%

The months with the highest relative humidity are January and December (40%).
The month with the lowest relative humidity is June (22%).

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Average rainfall in September
Seeley, CA

Average rainfall in September - Seeley, CA
  • Average rainfall in September: 0.35"

The wettest month (with the highest rainfall) is July (0.75").
The driest month (with the least rainfall) is May (0.04").

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Average rainfall days in September
Seeley, CA

Average rainfall days in September - Seeley, CA
  • Average rainfall days in September: 4.5 days

The month with the highest number of rainy days is July (7.2 days).
The month with the least rainy days is May (1.1 days).

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 6min).

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Average sunshine days in September
Seeley, CA

Average sunshine days in September - Seeley, CA
  • Average sunshine days in September: 24.2 days

The month with the most sunshine days is May (29.7 days).
The month with the least sunshine days is July (19.3 days).

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Average UV index in September
Seeley, CA

Average UV index in September - Seeley, CA
  • Average UV index in September: 7

The month with the highest UV index is July (UV index 9).
The month with the lowest UV index is December (UV index 4).

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Average cloud cover in September
Seeley, CA

Average cloud cover in September - Seeley, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is December (Cloud cover 17).
The month with the least cloud cover is June (Cloud cover 4).

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Average visibility in September
Seeley, CA

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

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

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Seeley, California, USA

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