September weather forecastNorth Highlands, CA
September
Weather in September
September, the first month of the autumn in North Highlands, is still a hot month, with an average temperature fluctuating between 88.7°F (31.5°C) and 59.4°F (15.2°C).Temperature
North Highlands's weather in September indicates an average high-temperature of a still hot 88.7°F (31.5°C), nearly consistent with the 93.4°F (34.1°C) of August. Throughout the month of September, North Highlands observes a dramatic downturn from the daytime peak temperatures, expecting an average low of 59.4°F (15.2°C).Heat index
September's average heat index is computed to be a hot 89.6°F (32°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', arises from combining readings of air temperature and relative moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
July and September, with an average relative humidity of 43%, are the least humid months in North Highlands, California.Rainfall
In North Highlands, in September, during 2.1 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. Throughout the year, in North Highlands, there are 75.8 rainfall days, and 16.65" (423mm) of precipitation is accumulated.Snowfall
In North Highlands, snow does not fall in January through November.Daylight
In North Highlands, the average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm PDT.
Sunshine
In September, the average sunshine is 11.2h.UV index
The average daily maximum UV index in September in North Highlands is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 5 in September suggests the following recommendations:
Exercise prevention - Warding off sunburn is urged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
North Highlands, CA
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (54.1°F).
- Average low temperature in September: 59.4°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in September
North Highlands, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
North Highlands, CA
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is February (5.9mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in September
North Highlands, CA
- Average humidity in September: 43%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are July and September (43%).
Average rainfall in September
North Highlands, CA
- Average rainfall in September: 0.16"
The wettest month (with the highest rainfall) is March (3.11").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
North Highlands, CA
- Average rainfall days in September: 2.1 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is August (0.8 days).
Average snowfall days in September
North Highlands, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 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
North Highlands, CA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
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 42min).
Average sunshine days in September
North Highlands, CA
- Average sunshine days in September: 27.1 days
The month with the most sunshine days is August (30 days).
The month with the least sunshine days is March (16.3 days).
Average UV index in September
North Highlands, 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
North Highlands, 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
North Highlands, 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).
