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
As September unfolds, the average high-temperature reaches a still refreshing 56.3°F (13.5°C), hinting at a slight fluctuation from the previous month. Nighttime readings during September register a minimal drop from daytime highs, averaging at a cool 50.9°F (10.5°C).Humidity
In Annette, the average relative humidity in September is 85%.Rainfall
In September, the rain falls for 18.7 days. Throughout September, 7.8" (198mm) of precipitation is accumulated. Throughout the year, there are 227.1 rainfall days, and 90.98" (2311mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Annette.Daylight
In Annette, the average length of the day in September is 12h and 41min.On the first day of September, sunrise is at 5:54 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:23 pm AKDT.
Sunshine
The average sunshine in September is 6.3h.UV index
In September, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high UV index of 3 in September translates into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Annette have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Annette have in September?
How high is the UV index in September?
Average temperature in September
Annette, AK
- Average high temperature in September: 56.3°F
The warmest month (with the highest average high temperature) is August (59.7°F).
The month with the lowest average high temperature is December (39.2°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is August (54°F).
The coldest month (with the lowest average low temperature) is February (34.3°F).
Average pressure in September
Annette, AK
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is July (30.06"Hg).
The month with the lowest atmospheric pressure is November (29.8"Hg).
Average wind speed in September
Annette, AK
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is January (13.3mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in September
Annette, AK
- Average humidity in September: 85%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is February (78%).
Average rainfall in September
Annette, AK
- Average rainfall in September: 7.8"
The wettest month (with the highest rainfall) is November (10.67").
The driest month (with the least rainfall) is May (3.7").
Average rainfall days in September
Annette, AK
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is November (23 days).
The month with the least rainy days is February (15.2 days).
Average snowfall in September
Annette, AK
- Average snowfall in September: 0"
The month with the highest snowfall is January (7.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Annette, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (8.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Annette, AK
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is May (Average sunshine: 7h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in September
Annette, AK
- Average sunshine days in September: 10.2 days
The months with the most sunshine days are May and August (12.2 days).
The month with the least sunshine days is November (5.6 days).
Average UV index in September
Annette, AK
- Average UV index in September: 3
The months with the highest UV index are July and August (UV index 4).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in September
Annette, AK
- Average cloud cover in September: 55
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are May and September (Cloud cover 55).
Average visibility in September
Annette, AK
- 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).
Annette, Alaska, USA
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