September weather forecast
Fort Jones, CA

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Weather in September

September, the first month of the autumn in Fort Jones, is also a moderately hot month, with an average temperature varying between 75.9°F (24.4°C) and 44.8°F (7.1°C).

Temperature

As Fort Jones enters September, the average high-temperature subtly lowers from the a moderately hot 84.2°F (29°C) of August to a still warm 75.9°F (24.4°C). Fort Jones anticipates a considerable cooling off from the daytime high to an average minimum temperature of 44.8°F (7.1°C) in September.

Humidity

In September, the average relative humidity in Fort Jones, California, is 55%.

Rainfall

In Fort Jones, in September, it is raining for 4.1 days, with typically 0.43" (11mm) of accumulated precipitation. Throughout the year, in Fort Jones, California, there are 116 rainfall days, and 17.8" (452mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall in Fort Jones.

Daylight

In September, the average length of the day in Fort Jones is 12h and 28min.
On the first day of September, sunrise is at 6:38 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:54 pm PDT.

Sunshine

In Fort Jones, the average sunshine in September is 11h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 4 suggests this advice:
Act with care - The suggestion to avoid sunburn is emphasized. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

What is the usual temperature for Fort Jones in September?

The average high-temperature and low-temperature in Fort Jones during September are 75.9°F (24.4°C) and 44.8°F (7.1°C) respectively. In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is appraised at 86°F (30°C).

What is the average humidity in September in Fort Jones?

In Fort Jones, the average relative humidity in September is 55%.

How many days does it rain in September in Fort Jones?

In Fort Jones, during September, the rain falls for 4.1 days and regularly aggregates up to 0.43" (11mm) of precipitation.

When it does not snow in Fort Jones?

May through September are months without snowfall.

Does it snow in Fort Jones in September?

In Fort Jones, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Fort Jones?

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

What time are sunrise and sunset in September in Fort Jones?

On the first day of September in Fort Jones, sunrise is at 6:38 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:54 pm PDT.

How long on average sun shines in September in Fort Jones?

In September, the average sunshine duration in Fort Jones is 11h.

How high is the UV index in September in Fort Jones?

In Fort Jones, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Fort Jones, CA

Average temperature in September - Fort Jones, CA
  • Average high temperature in September: 75.9°F

The warmest months (with the highest average high temperature) are July and August (84.2°F).
The month with the lowest average high temperature is December (41.5°F).

  • Average low temperature in September: 44.8°F

The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).

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Average pressure in September
Fort Jones, CA

Average pressure in September - Fort Jones, CA
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).

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Average wind speed in September
Fort Jones, CA

Average wind speed in September - Fort Jones, CA
  • Average wind speed in September: 4mph

The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).

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Average humidity in September
Fort Jones, CA

Average humidity in September - Fort Jones, CA
  • Average humidity in September: 55%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (52%).

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Average rainfall in September
Fort Jones, CA

Average rainfall in September - Fort Jones, CA
  • Average rainfall in September: 0.43"

The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in September
Fort Jones, CA

Average rainfall days in September - Fort Jones, CA
  • Average rainfall days in September: 4.1 days

The month with the highest number of rainy days is March (16.7 days).
The month with the least rainy days is July (3.2 days).

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Average snowfall in September
Fort Jones, CA

Average snowfall in September - Fort Jones, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.39").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Fort Jones, CA

Average snowfall days in September - Fort Jones, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Fort Jones, CA

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 11h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 42min).

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Average sunshine days in September
Fort Jones, CA

Average sunshine days in September - Fort Jones, CA
  • Average sunshine days in September: 25.1 days

The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11 days).

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Average UV index in September
Fort Jones, CA

Average UV index in September - Fort Jones, 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).

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Average cloud cover in September
Fort Jones, CA

Average cloud cover in September - Fort Jones, CA
  • Average cloud cover in September: 14

The months with the most cloud cover are March and December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 8).

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Average visibility in September
Fort Jones, CA

Average visibility in September - Fort Jones, CA
  • Average visibility in September: 6mi

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

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Fort Jones, California, USA

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