Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The initiation of September sees an average high-temperature of a still moderately hot 80.8°F (27.1°C), showing minor variations from the previous month. A steep decline to a cool 51.4°F (10.8°C) characterizes the September nights in El Roble.Heat index
The heat index in September is evaluated at 82.4°F (28°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Humidity
July and September, with an average relative humidity of 58%, are the least humid months.Rainfall
In September, in El Roble, the rain falls for 2.5 days. Throughout September, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 83.3 rainfall days, and 17.72" (450mm) of precipitation is accumulated.Snowfall
In El Roble, California, snow does not fall in January, March through December.Daylight
The average length of the day in September in El Roble is 12h and 26min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:42 pm. On the last day of September, in El Roble, California, sunrise is at 7:08 am and sunset at 6:56 pm PDT.
Sunshine
The average sunshine in September is 10.9h.UV index
In September, the average daily maximum UV index in El Roble is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Frequently asked questions
What is the temperature in September in El Roble?
What are the least humid months in El Roble?
What is the average humidity in September in El Roble?
How much does it rain in El Roble in September?
When it does not snow in El Roble?
What is the average length of the day in September in El Roble?
When is the sunrise / sunset in September in El Roble?
How many hours of sunshine does El Roble have in September?
What is the UV index intensity in September in El Roble?
Average temperature in September
El Roble, CA
- Average high temperature in September: 80.8°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (53.6°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (53.6°F).
The coldest month (with the lowest average low temperature) is December (37.4°F).
Average pressure in September
El Roble, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.92"Hg).
Average wind speed in September
El Roble, CA
- Average wind speed in September: 4.4mph
The windiest months (with the highest average wind speed) are April, May and June (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).
Average humidity in September
El Roble, CA
- Average humidity in September: 58%
The month with the highest relative humidity is March (79%).
The months with the lowest relative humidity are July and September (58%).
Average rainfall in September
El Roble, CA
- Average rainfall in September: 0.2"
The wettest months (with the highest rainfall) are February and December (3.11").
The driest months (with the least rainfall) are July and August (0.08").
Average rainfall days in September
El Roble, CA
- Average rainfall days in September: 2.5 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in September
El Roble, 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").
Average snowfall days in September
El Roble, 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, November and December (0 days).
Average daylight in September /
Average sunshine in September
El Roble, CA
- Average daylight in September: 12h and 2min
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: 10h and 5min
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
El Roble, CA
- Average sunshine days in September: 26.9 days
The month with the most sunshine days is July (28.5 days).
The month with the least sunshine days is March (15.9 days).
Average UV index in September
El Roble, CA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are February and November (UV index 2).
Average cloud cover in September
El Roble, CA
- Average cloud cover in September: 11
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
El Roble, 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).
El Roble, California, USA
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