September weather forecast and climate
Fairmont, CA

Weather in September

September, the first month of the autumn, in Fairmont, is still a warm month, with average temperature varying between 85.1°F (29.5°C) and 59°F (15°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a warm 85.1°F (29.5°C). In Fairmont, in September, the average low-temperature is 59°F (15°C).

Humidity

In September, the average relative humidity in Fairmont, California, is 38%.

Rainfall

In September, in Fairmont, the rain falls for 1.2 days. Throughout September, 0.08" (2mm) of precipitation is accumulated. Throughout the year, there are 44.4 rainfall days, and 6.61" (168mm) of precipitation is accumulated.

Snowfall

In Fairmont snow does not fall in June through October.

Daylight

In September, the average length of the day is 12.4h.

Sunshine

In Fairmont, the average sunshine in September is 11h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
[Resources]

FAQ

What is the temperature in September in Fairmont?

The average high-temperature, in September, in Fairmont, California, is 85.1°F (29.5°C), while the average low-temperature is 59°F (15°C).

What is the average humidity in September in Fairmont?

In September, the average relative humidity is 38%.

How many days does it rain in September in Fairmont?

In Fairmont, California, during September, the rain falls for 1.2 days and regularly aggregates up to 0.08" (2mm) of precipitation.

When it does not snow in Fairmont?

June through October are months without snowfall in Fairmont, California.

How many hours of daylight does Fairmont have in September?

In Fairmont, California, the average length of the day in September is 12.4h.

How long on average sun shines in September in Fairmont?

In Fairmont, the average sunshine in September is 11h.

What is the UV index reading in September in Fairmont?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from the exposure to the Sun's UV rays.

Average temperature in September
Fairmont, CA

Average temperature in September - Fairmont, CA
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is December (54.7°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is August (62.1°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

[Resources]

Average pressure in September
Fairmont, CA

Average pressure in September - Fairmont, CA
  • Average pressure in September: 29.89"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is June (29.88").

[Resources]

Average wind speed in September
Fairmont, CA

Average wind speed in September - Fairmont, CA
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest months (with the lowest average wind speed) are August and September (5.3mph).

[Resources]

Average humidity in September
Fairmont, CA

Average humidity in September - Fairmont, CA
  • Average humidity in September: 38%

Months with the highest relative humidity are February and March (56%).
The month with the lowest relative humidity is August (35%).

[Resources]

Average rainfall in September
Fairmont, CA

Average rainfall in September - Fairmont, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is December (1.57").
The driest months (with the least rainfall) are June and August (0.04").

[Resources]

Average rainfall days in September
Fairmont, CA

Average rainfall days in September - Fairmont, CA
  • Average rainfall days in September: 1.2 days

The month with the highest number of rainy days is March (7.3 days).
Months with the least rainy days are August and September (1.2 days).

[Resources]

Average snowfall in September
Fairmont, CA

Average snowfall in September - Fairmont, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is December (5.31").
Months with the least snowfall are June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Fairmont, CA

Average snowfall days in September - Fairmont, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.8 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

[Resources]

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

Average daylight in September / Average sunshine in September - Fairmont, CA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 11h

The month with the most sunshine is July (Average sunshine: 12.2h).
Months with the least sunshine are January and February (Average sunshine: 6.8).

[Resources]

Average sunshine days in September
Fairmont, CA

Average sunshine days in September - Fairmont, CA
  • Average sunshine days in September: 28 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is February (20.8 days).

[Resources]

Average UV index in September
Fairmont, CA

Average UV index in September - Fairmont, CA
  • Average UV index in September: 5

Months with the highest UV index are July and August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

[Resources]

Average cloud cover in September
Fairmont, CA

Average cloud cover in September - Fairmont, CA
  • Average cloud cover in September: 5

The month with the most cloud cover is March (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 4).

[Resources]

Average visibility in September
Fairmont, CA

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

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

[Resources]