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
Observing a mild shift, the average high-temperature during September reduces from August's fresh 52.7°F (11.5°C) to a cold 39.6°F (4.2°C). Nighttime temperatures in September average to a freezing cold 27°F (-2.8°C) in Chandalar.Humidity
In September, the average relative humidity is 81%.Rainfall
In September, the rain falls for 9.3 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 86.2 rainfall days, and 13.66" (347mm) of precipitation is accumulated.Snowfall
January through December are months with snowfall in Chandalar, Alaska. In Chandalar, in September, during 10.9 snowfall days, 6.61" (168mm) of snow is typically accumulated. In Chandalar, during the entire year, snow falls for 130.7 days and aggregates up to 48.66" (1236mm) of snow.Daylight
In September, the average length of the day is 13h and 8min.On the first day of the month, sunrise is at 6:26 am and sunset at 9:20 pm. On the last day of September, sunrise is at 8:06 am and sunset at 7:20 pm AKDT.
Sunshine
In September, the average sunshine is 5.7h.UV index
The months with the lowest UV index are March, April, September through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 1 in September transforms into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is September?
What is the average humidity in September?
How much does it rain in September?
How many days does it snow in September?
What is the average length of the day in September in Chandalar?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the month with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Chandalar, AK
- Average high temperature in September: 39.6°F
The warmest month (with the highest average high temperature) is July (60.4°F).
The month with the lowest average high temperature is January (-4°F).
- Average low temperature in September: 27°F
The month with the highest average low temperature is July (44.8°F).
The coldest month (with the lowest average low temperature) is January (-15.7°F).
Average pressure in September
Chandalar, AK
- Average pressure in September: 29.8"Hg
The month with the highest atmospheric pressure is January (30.03"Hg).
The month with the lowest atmospheric pressure is September (29.8"Hg).
Average wind speed in September
Chandalar, AK
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are January and June (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.5mph).
Average humidity in September
Chandalar, AK
- Average humidity in September: 81%
The month with the highest relative humidity is April (93%).
The month with the lowest relative humidity is June (59%).
Average rainfall in September
Chandalar, AK
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in September
Chandalar, AK
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is December (0.7 days).
Average snowfall in September
Chandalar, AK
- Average snowfall in September: 6.61"
The month with the highest snowfall is October (9.09").
The month with the least snowfall is July (0.12").
Average snowfall days in September
Chandalar, AK
- Average snowfall days in September: 10.9 days
The month with the highest number of snowfall days is October (19.4 days).
The month with the least snowfall days is July (0.2 days).
Average daylight in September /
Average sunshine in September
Chandalar, AK
- Average daylight in September: 13h and 1min
The month with the longest days is May (Average daylight: 18h and 12min).
The month with the shortest days is June (Average daylight: 0h and 0min).
- Average sunshine in September: 5h and 4min
The month with the most sunshine is August (Average sunshine: 8h and 42min).
The month with the least sunshine is June (Average sunshine: 0h and 30min).
Average sunshine days in September
Chandalar, AK
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is August (9.3 days).
Average UV index in September
Chandalar, AK
- Average UV index in September: 1
The month with the highest UV index is June (UV index 4).
The months with the lowest UV index are March, April, September, October, November and December (UV index 1).
Average cloud cover in September
Chandalar, AK
- Average cloud cover in September: 61
The month with the most cloud cover is April (Cloud cover 69).
The month with the least cloud cover is June (Cloud cover 44).
Average visibility in September
Chandalar, AK
- Average visibility in September: 5mi
The months with the highest visibility are June, July and August (6mi).
The month with the lowest visibility is April (3mi).
Chandalar, Alaska, USA
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