September weather forecastAlaska, IN
September
Weather in September
September, the first month of the autumn in Alaska, is still a warm month, with an average temperature fluctuating between 76.1°F (24.5°C) and 57.7°F (14.3°C).Temperature
Alaska registers an average high-temperature of a still warm 76.1°F (24.5°C) at the commencement of September, closely related to the preceding month. The average low-temperature, in September, is a refreshing 57.7°F (14.3°C).Humidity
In Alaska, the average relative humidity in September is 78%.Rainfall
In Alaska, in September, during 11.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Alaska, during the entire year, the rain falls for 148.1 days and collects up to 25.43" (646mm) of precipitation.Snowfall
In Alaska, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 7:15 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:30 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In Alaska, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alaska, IN
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (34.2°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in September
Alaska, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Alaska, IN
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity in September
Alaska, IN
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Alaska, IN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in September
Alaska, IN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Alaska, IN
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Alaska, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.6 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
Alaska, IN
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Alaska, IN
- Average sunshine days in September: 16 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in September
Alaska, IN
- Average UV index in September: 5
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Alaska, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Alaska, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
