September weather forecastWhale Pass, AK
September
Weather in September
The first month of the autumn, September, is also a moderate month in Whale Pass, Alaska, with an average temperature varying between 56.5°F (13.6°C) and 46.9°F (8.3°C).Temperature
Transitioning from August to September, Whale Pass observes an average high-temperature of a still moderate 56.5°F (13.6°C), differing subtly from the previous month. During September in Whale Pass, the average low-temperature is recorded at a chilly 46.9°F (8.3°C).Humidity
In September, the average relative humidity is 88%.Rainfall
In Whale Pass, in September, during 19.4 rainfall days, 6.02" (153mm) of precipitation is typically accumulated. Throughout the year, there are 231.7 rainfall days, and 67.83" (1723mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Whale Pass, the average length of the day in September is 12h and 43min.On the first day of September, sunrise is at 5:58 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:29 pm AKDT.
Sunshine
May and September, with an average of 5.7h of sunshine, are months with the most sunshine.UV index
The average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 3 in September leads to these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Whale Pass, AK
- Average high temperature in September: 56.5°F
The warmest months (with the highest average high temperature) are July and August (60.4°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in September: 46.9°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is February (30.2°F).
Average pressure in September
Whale Pass, AK
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is July (30.06"Hg).
The month with the lowest atmospheric pressure is November (29.77"Hg).
Average wind speed in September
Whale Pass, AK
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in September
Whale Pass, AK
- Average humidity in September: 88%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are March and May (84%).
Average rainfall in September
Whale Pass, AK
- Average rainfall in September: 6.02"
The wettest month (with the highest rainfall) is November (8.03").
The driest month (with the least rainfall) is May (2.83").
Average rainfall days in September
Whale Pass, AK
- Average rainfall days in September: 19.4 days
The month with the highest number of rainy days is November (22.5 days).
The month with the least rainy days is February (14.8 days).
Average snowfall in September
Whale Pass, AK
- Average snowfall in September: 0"
The month with the highest snowfall is March (10.35").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Whale Pass, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is March (10.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Whale Pass, AK
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 30min).
The month with the shortest days is December (Average daylight: 7h and 0min).
- Average sunshine in September: 5h and 42min
The months with the most sunshine are May and September (Average sunshine: 5h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Whale Pass, AK
- Average sunshine days in September: 9.8 days
The month with the most sunshine days is July (11.1 days).
The month with the least sunshine days is November (5.3 days).
Average UV index in September
Whale Pass, 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, February, November and December (UV index 1).
Average cloud cover in September
Whale Pass, AK
- Average cloud cover in September: 62
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is September (Cloud cover 62).
Average visibility in September
Whale Pass, AK
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
The months with the lowest visibility are July and August (4mi).
