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 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
As September takes its course, Norco's average high-temperature registers at a still hot 86.5°F (30.3°C), closely aligning with the preceding month. In the month of September, Norco witnesses a consistent average low-temperature of 74.1°F (23.4°C).Heat index
Throughout September, the heat index is evaluated at a fiery hot 98.6°F (37°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In Norco, the average relative humidity in September is 76%.Rainfall
In Norco, during September, the rain falls for 19.9 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Norco, during the entire year, the rain falls for 180.8 days and collects up to 33.39" (848mm) of precipitation.Snowfall
In Norco, snow does not fall in February through November.Daylight
In Norco, Louisiana, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:39 am and sunset at 7:23 pm. On the last day of September, sunrise is at 6:54 am and sunset at 6:47 pm CDT.
Sunshine
In September, the average sunshine is 10.2h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 6 in September transforms into this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Norco have in September?
How high is the UV index in September?
Average temperature in September
Norco, LA
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in September: 74.1°F
The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).
Average pressure in September
Norco, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.97"Hg).
Average wind speed in September
Norco, LA
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are February and April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Norco, LA
- Average humidity in September: 76%
The months with the highest relative humidity are February and December (78%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Norco, LA
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is July (5.39").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in September
Norco, LA
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is August (23.7 days).
The month with the least rainy days is November (8.4 days).
Average snowfall days in September
Norco, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Norco, LA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Norco, LA
- Average sunshine days in September: 7.9 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is August (4.8 days).
Average UV index in September
Norco, LA
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Norco, LA
- Average cloud cover in September: 25
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Norco, LA
- 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).
Norco, Louisiana, USA
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