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
During the shift to September, Newhalen records a mild decrease in average high-temperature, moving from a refreshing 57°F (13.9°C) in August to a cool 50.5°F (10.3°C). Nights during September maintain a steady temperature, averaging at an icy 41.9°F (5.5°C).Humidity
In September, the average relative humidity is 82%.Rainfall
The month with the most rainfall is September, when the rain falls for 17.9 days and typically aggregates up to 3.31" (84mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Newhalen. September is the first month it typically snows in Newhalen. Throughout September, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow. In Newhalen, during the entire year, snow falls for 83.4 days and aggregates up to 44.37" (1127mm) of snow.Daylight
In Newhalen, the average length of the day in September is 12h and 49min.On the first day of the month, sunrise is at 7:17 am and sunset at 9:20 pm. On the last day of September, in Newhalen, Alaska, sunrise is at 8:24 am and sunset at 7:53 pm AKDT.
Sunshine
The average sunshine in September in Newhalen is 5.9h.UV index
The average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during September translates into the following directions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Stay sun-safe with clothing that is both closely woven and worn loosely. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the temperature in September in Newhalen?
What is the average humidity in September in Newhalen?
What is the wettest month in Newhalen?
How much does it rain in Newhalen in September?
When does it start to snow in Newhalen?
What is the average length of the day in September in Newhalen?
What time are sunrise and sunset in September in Newhalen?
How long on average sun shines in September in Newhalen?
What is the UV index intensity in September in Newhalen?
Average temperature in September
Newhalen, AK
- Average high temperature in September: 50.5°F
The warmest month (with the highest average high temperature) is July (59.2°F).
The month with the lowest average high temperature is January (20.1°F).
- Average low temperature in September: 41.9°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in September
Newhalen, AK
- Average pressure in September: 29.72"Hg
The month with the highest atmospheric pressure is July (29.95"Hg).
The month with the lowest atmospheric pressure is December (29.64"Hg).
Average wind speed in September
Newhalen, AK
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is December (9.9mph).
The calmest months (with the lowest average wind speed) are June and July (7.3mph).
Average humidity in September
Newhalen, AK
- Average humidity in September: 82%
The months with the highest relative humidity are February, March and December (87%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Newhalen, AK
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is September (3.31").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Newhalen, AK
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is August (18.1 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Newhalen, AK
- Average snowfall in September: 0.08"
The month with the highest snowfall is December (9.33").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Newhalen, AK
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is December (14.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Newhalen, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 18h and 36min).
The month with the shortest days is December (Average daylight: 6h and 6min).
- Average sunshine in September: 5h and 5min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Newhalen, AK
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is September (9.7 days).
Average UV index in September
Newhalen, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Newhalen, AK
- Average cloud cover in September: 55
The month with the most cloud cover is August (Cloud cover 58).
The month with the least cloud cover is June (Cloud cover 50).
Average visibility in September
Newhalen, AK
- Average visibility in September: 6mi
The months with the highest visibility are January, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February, March and December (5mi).
Newhalen, Alaska, USA
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