September weather forecast
Hathaway Pines, CA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Hathaway Pines, California, with an average temperature ranging between min 53.4°F (11.9°C) and max 79.3°F (26.3°C).

Temperature

September signals a slight drop in average high-temperature, sliding from August's warm 84.9°F (29.4°C) to a still moderately hot 79.3°F (26.3°C). Hathaway Pines experiences a drastic reduction from day temperatures to an average low of 53.4°F (11.9°C) in September.

Humidity

In September, the average relative humidity in Hathaway Pines is 39%.

Rainfall

In Hathaway Pines, during September, the rain falls for 2.5 days and regularly aggregates up to 0.2" (5mm) of precipitation. Throughout the year, in Hathaway Pines, California, there are 69 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

In Hathaway Pines, snow does not fall in June through September.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:31 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:45 pm PDT.

Sunshine

The average sunshine in September is 11.3h.

UV index

In Hathaway Pines, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What are the temperatures in Hathaway Pines in September?

The high-temperature, in September, in Hathaway Pines, is 79.3°F (26.3°C), while the low-temperature averages to 53.4°F (11.9°C).

What is the average humidity in September in Hathaway Pines?

The average relative humidity in September in Hathaway Pines is 39%.

How much does it rain in Hathaway Pines in September?

In Hathaway Pines, 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 Hathaway Pines?

In Hathaway Pines, California, snow does not fall in June through September.

Does it snow in Hathaway Pines in September?

In Hathaway Pines, California, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Hathaway Pines have in September?

In Hathaway Pines, the average day length in September is 12h and 25min.

When are sunrise and sunset in September in Hathaway Pines?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:30 pm. On the last day of the month, in Hathaway Pines, sunrise is at 6:57 am and sunset at 6:45 pm PDT.

How many hours of sunshine does Hathaway Pines have in September?

In Hathaway Pines, California, the average sunshine duration in September is 11.3h.

What is the UV index reading in September in Hathaway Pines?

The average daily maximum UV index in September in Hathaway Pines is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
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
Hathaway Pines, CA

Average temperature in September - Hathaway Pines, CA
  • Average high temperature in September: 79.3°F

The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is December (48°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is December (32°F).

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Average pressure in September
Hathaway Pines, CA

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

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Hathaway Pines, CA

Average wind speed in September - Hathaway Pines, CA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is February (6.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in September
Hathaway Pines, CA

Average humidity in September - Hathaway Pines, CA
  • Average humidity in September: 39%

The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is July (36%).

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Average rainfall in September
Hathaway Pines, CA

Average rainfall in September - Hathaway Pines, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is March (5.98").
The driest months (with the least rainfall) are July and August (0.08").

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Average rainfall days in September
Hathaway Pines, CA

Average rainfall days in September - Hathaway Pines, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (11.3 days).
The month with the least rainy days is August (1.6 days).

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Average snowfall in September
Hathaway Pines, CA

Average snowfall in September - Hathaway Pines, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is March (21.34").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Hathaway Pines, CA

Average snowfall days in September - Hathaway Pines, CA
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is March (7.2 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Hathaway Pines, CA

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 2min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in September
Hathaway Pines, CA

Average sunshine days in September - Hathaway Pines, CA
  • Average sunshine days in September: 26.2 days

The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is March (14.5 days).

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Average UV index in September
Hathaway Pines, CA

Average UV index in September - Hathaway Pines, CA
  • Average UV index in September: 4

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

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Average cloud cover in September
Hathaway Pines, CA

Average cloud cover in September - Hathaway Pines, CA
  • Average cloud cover in September: 7

The month with the most cloud cover is March (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 5).

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Average visibility in September
Hathaway Pines, CA

Average visibility in September - Hathaway Pines, 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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Hathaway Pines, California, USA

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