September weather forecast and climate
Lincoln, CA

Weather in September

September, the first month of the autumn, in Lincoln, is still a tropical month, with average temperature ranging between max 87.4°F (30.8°C) and min 58.8°F (14.9°C).

Temperature

In September, the average high-temperature marginally drops, from a hot 93.2°F (34°C) in August, to a still tropical 87.4°F (30.8°C). In Lincoln, the average low-temperature is 58.8°F (14.9°C).

Heat index

In September, the average heat index is appraised at a hot 87.3°F (30.7°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'feels like', 'apparent temperature', or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, differences in body mass, height, and shape, wind), and activity. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Lincoln, California, the average relative humidity in September is 40%.

Rainfall

In Lincoln, it is raining for 2.5 days, with typically 0.24" (6mm) of accumulated precipitation. Throughout the year, there are 80 rainfall days, and 21.85" (555mm) of precipitation is accumulated.

Snowfall

January through November are months without snowfall.

Daylight

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

Sunshine

The average sunshine in Lincoln, California, is 11.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Lincoln?

In Lincoln, California, in September, the average high-temperature is 87.4°F (30.8°C), and the average low-temperature is 58.8°F (14.9°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), that combines relative humidity and air temperature, is estimated at 87.3°F (30.7°C).

What is the average humidity in September in Lincoln?

In September, the average relative humidity is 40%.

How much does it rain in Lincoln in September?

In Lincoln, California, in September, during 2.5 rainfall days, 0.24" (6mm) of precipitation is typically accumulated.

When it does not snow in Lincoln?

January through November are months without snowfall in Lincoln.

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

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

How many hours of sunshine does Lincoln have in September?

In Lincoln, California, the average sunshine in September is 11.2h.

What is the UV index reading in September in Lincoln?

In Lincoln, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Lincoln, CA

Average temperature in September - Lincoln, CA
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (54.1°F).

  • Average low temperature in September: 58.8°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (39.9°F).

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Average pressure in September
Lincoln, CA

Average pressure in September - Lincoln, CA
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is January (30.16").
The month with the lowest atmospheric pressure is June (29.9").

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Average wind speed in September
Lincoln, CA

Average wind speed in September - Lincoln, CA
  • Average wind speed in September: 4.4mph

The windiest months (with the highest average wind speed) are February and March (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.4mph).

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Average humidity in September
Lincoln, CA

Average humidity in September - Lincoln, CA
  • Average humidity in September: 40%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (39%).

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Average rainfall in September
Lincoln, CA

Average rainfall in September - Lincoln, CA
  • Average rainfall in September: 0.24"

The wettest month (with the highest rainfall) is March (4.09").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Lincoln, CA

Average rainfall days in September - Lincoln, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is July (0.9 days).

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Average snowfall in September
Lincoln, CA

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

The month with the highest snowfall is December (0.04").
Months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Lincoln, CA

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

The month with the highest number of snowfall days is December (0.2 days).
Months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

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

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

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in September: 11.2h

The month with the most sunshine is July (Average sunshine: 12.2h).
The month with the least sunshine is December (Average sunshine: 5.8h).

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Average sunshine days in September
Lincoln, CA

Average sunshine days in September - Lincoln, CA
  • Average sunshine days in September: 26.9 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (15.9 days).

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Average UV index in September
Lincoln, CA

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

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

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Average cloud cover in September
Lincoln, CA

Average cloud cover in September - Lincoln, CA
  • Average cloud cover in September: 8

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in September
Lincoln, CA

Average visibility in September - Lincoln, 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).

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