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
September brings a minor shift in the average high-temperature, adjusting from a warm 78.1°F (25.6°C) in August to a pleasant 72°F (22.2°C). The nighttime temperature shows a significant divergence from the daytime highs, averaging at a chilly 43.5°F (6.4°C) in September.Humidity
The average relative humidity in September in Norden is 46%.Rainfall
In September, the rain falls for 3.3 days. Throughout September, 0.39" (10mm) of precipitation is accumulated. Throughout the year, there are 54 rainfall days, and 25.08" (637mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.8 snowfall days, it receives 1.06" (27mm) of snow. Throughout the year, there are 83.6 snowfall days, and 158.98" (4038mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 6:30 am and sunset at 7:31 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:44 pm PDT.
Sunshine
The average sunshine in September is 11.1h.UV index
The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: A maximum UV index of 3 in September translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Norden, CA
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (37.6°F).
- Average low temperature in September: 43.5°F
The month with the highest average low temperature is July (48°F).
The coldest month (with the lowest average low temperature) is December (22.6°F).
Average pressure in September
Norden, CA
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Norden, CA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Norden, CA
- Average humidity in September: 46%
The month with the highest relative humidity is March (83%).
The month with the lowest relative humidity is July (41%).
Average rainfall in September
Norden, CA
- Average rainfall in September: 0.39"
The wettest month (with the highest rainfall) is March (4.8").
The driest months (with the least rainfall) are July and August (0.12").
Average rainfall days in September
Norden, CA
- Average rainfall days in September: 3.3 days
The month with the highest number of rainy days is May (8.3 days).
The month with the least rainy days is July (2.5 days).
Average snowfall in September
Norden, CA
- Average snowfall in September: 1.06"
The month with the highest snowfall is March (34.88").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Norden, CA
- Average snowfall days in September: 0.8 days
The month with the highest number of snowfall days is March (17.1 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Norden, 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: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Norden, CA
- Average sunshine days in September: 25.6 days
The month with the most sunshine days is August (26.4 days).
The month with the least sunshine days is March (12.7 days).
Average UV index in September
Norden, CA
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Norden, CA
- Average cloud cover in September: 10
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Norden, CA
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, April and December (5mi).
Norden, California, USA
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