September weather forecast
Lamont, CA

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Weather in September

September, the first month of the autumn in Lamont, is still a tropical month, with an average temperature ranging between max 86.7°F (30.4°C) and min 58.5°F (14.7°C).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's 92.3°F (33.5°C) to a still tropical 86.7°F (30.4°C). September's nights exhibit a sharp contrast from day highs, with an average temperature of 58.5°F (14.7°C).

Humidity

In Lamont, the average relative humidity in September is 33%.

Rainfall

In Lamont, in September, during 1.9 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Lamont, during the entire year, the rain falls for 54.3 days and collects up to 6.22" (158mm) of precipitation.

Snowfall

In Lamont, snow does not fall in January, March through December.

Daylight

In Lamont, the average length of the day in September is 12h and 23min.
On the first day of September in Lamont, sunrise is at 6:28 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:40 pm PDT.

Sunshine

The average sunshine in September in Lamont is 11.1h.

UV index

In Lamont, California, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: A maximum high UV index of 5 in September translates into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Frequently asked questions

How hot is September in Lamont?

The average high-temperature and low-temperature during September are 86.7°F (30.4°C) and 58.5°F (14.7°C) respectively.

What is the average humidity in September in Lamont?

In Lamont, the average relative humidity in September is 33%.

How much does it rain in Lamont in September?

In Lamont, California, during September, the rain falls for 1.9 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow in Lamont?

In Lamont, snow does not fall in January, March through December.

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

In September, the average day length in Lamont is 12h and 23min.

When is the sunrise / sunset in September in Lamont?

On the first day of September, sunrise is at 6:28 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:40 pm PDT.

How long on average sun shines in September in Lamont?

In Lamont, the average sunshine duration in September is 11.1h.

How high is the UV index in September in Lamont?

In Lamont, California, the average daily maximum UV index in September is 5. A UV Index value 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
Lamont, CA

Average temperature in September - Lamont, CA
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

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Average pressure in September
Lamont, CA

Average pressure in September - Lamont, CA
  • Average pressure in September: 29.9"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Lamont, CA

Average wind speed in September - Lamont, CA
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is June (5.5mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).

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Average humidity in September
Lamont, CA

Average humidity in September - Lamont, CA
  • Average humidity in September: 33%

The months with the highest relative humidity are February and December (58%).
The month with the lowest relative humidity is August (29%).

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Average rainfall in September
Lamont, CA

Average rainfall in September - Lamont, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is December (1.22").
The driest months (with the least rainfall) are June and August (0.08").

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Average rainfall days in September
Lamont, CA

Average rainfall days in September - Lamont, CA
  • Average rainfall days in September: 1.9 days

The month with the highest number of rainy days is March (8.5 days).
The month with the least rainy days is June (1.4 days).

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Average snowfall in September
Lamont, CA

Average snowfall in September - Lamont, 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
Lamont, CA

Average snowfall days in September - Lamont, 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 and November (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 11h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 12min).
The months with the least sunshine are January and December (Average sunshine: 6h and 54min).

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Average sunshine days in September
Lamont, CA

Average sunshine days in September - Lamont, CA
  • Average sunshine days in September: 26.3 days

The month with the most sunshine days is August (27.9 days).
The month with the least sunshine days is February (20.5 days).

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Average UV index in September
Lamont, CA

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

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in September
Lamont, CA

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

The month with the most cloud cover is March (Cloud cover 23).
The months with the least cloud cover are June, July, August and September (Cloud cover 5).

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Average visibility in September
Lamont, CA

Average visibility in September - Lamont, 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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Lamont, California, USA

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