September weather forecastNacomis Indian Rancheria, CA
September
Weather in September
The first month of the autumn, September, is still a warm month in Nacomis Indian Rancheria, California, with an average temperature ranging between max 84.9°F (29.4°C) and min 54°F (12.2°C).Temperature
September's climate shows a minor adjustment in average high-temperatures to a moderately hot 84.9°F (29.4°C) from August's 89.8°F (32.1°C). Nacomis Indian Rancheria in September observes a sharp transition from the daytime heat, falling to an average low of 54°F (12.2°C).Heat index
The heat index in September is calculated to be a hot 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to 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 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
In September, the average relative humidity in Nacomis Indian Rancheria, California, is 49%.Rainfall
In Nacomis Indian Rancheria, in September, during 2.4 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Nacomis Indian Rancheria, during the entire year, the rain falls for 88.1 days and collects up to 20.28" (515mm) of precipitation.Snowfall
In Nacomis Indian Rancheria, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September, sunrise is at 6:41 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:55 pm PDT.
Sunshine
The average sunshine in September is 11h.UV index
In Nacomis Indian Rancheria, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: An average UV index of 5 in September transforms into this advice:
Exercise prevention - Protecting skin and eyes from harm is required. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Nacomis Indian Rancheria, CA
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in September: 54°F
The months with the highest average low temperature are July and August (56.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).
Average pressure in September
Nacomis Indian Rancheria, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in September
Nacomis Indian Rancheria, CA
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are April and May (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in September
Nacomis Indian Rancheria, CA
- Average humidity in September: 49%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (48%).
Average rainfall in September
Nacomis Indian Rancheria, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is February (3.94").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Nacomis Indian Rancheria, CA
- Average rainfall days in September: 2.4 days
The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is July (1.1 days).
Average snowfall in September
Nacomis Indian Rancheria, CA
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Nacomis Indian Rancheria, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Nacomis Indian Rancheria, 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 0min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Nacomis Indian Rancheria, CA
- Average sunshine days in September: 27.2 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (14.3 days).
Average UV index in September
Nacomis Indian Rancheria, CA
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).
Average cloud cover in September
Nacomis Indian Rancheria, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Nacomis Indian Rancheria, CA
- Average visibility in September: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).
