September weather forecastLincoln, CA
September
Weather in September
The first month of the autumn, September, is still a tropical month in Lincoln, California, with an average temperature ranging between max 87.4°F (30.8°C) and min 58.8°F (14.9°C).Temperature
With the onset of September, Lincoln experiences a modest temperature adjustment, with the average high-temperature gently receding from 93.2°F (34°C) in August to a still tropical 87.4°F (30.8°C). Despite a stark disparity with daily highs, Lincoln records an average nighttime temperature of 58.8°F (14.9°C) in September.Heat index
September's average heat index is calculated to be a tropical 87.8°F (31°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives a temperature feeling by integrating air temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
The average relative humidity in September is 40%.Rainfall
In Lincoln, during September, the rain falls for 2.5 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Lincoln, during the entire year, the rain falls for 80 days and collects up to 21.85" (555mm) of precipitation.Snowfall
In Lincoln, snow does not fall in January through November.Daylight
In Lincoln, California, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:34 am and sunset at 7:34 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:48 pm PDT.
Sunshine
In September, the average sunshine is 11.2h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
Average pressure in September
Lincoln, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
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).
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%).
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").
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).
Average snowfall in September
Lincoln, CA
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
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).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Lincoln, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 12min
The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
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).
Average UV index in September
Lincoln, 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).
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).
Average visibility in September
Lincoln, 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).
