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
The beginning of September marks a decrease in the average high-temperature, transitioning from a comfortable 61.9°F (16.6°C) in August to a fresh 51.6°F (10.9°C). September brings with it a nighttime average temperature of 36.5°F (2.5°C).Humidity
The average relative humidity in September is 72%.Rainfall
In September, in Gulkana, Alaska, the rain falls for 10.1 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Gulkana, during the entire year, the rain falls for 81.1 days and collects up to 5.71" (145mm) of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 0.2" (5mm) of snow. In Gulkana, during the entire year, snow falls for 54.8 days and aggregates up to 17.13" (435mm) of snow.Daylight
The average length of the day in September is 12h and 54min.On the first day of September, sunrise is at 6:33 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 7:14 pm AKDT.
Sunshine
In September, the average sunshine is 9h.UV index
The months with the lowest UV index are January through April, September through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 2 in September translates into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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 Gulkana in September?
When does it start snowing?
How many hours of daylight does Gulkana have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Gulkana have in September?
What is the month with the lowest UV index?
How high is the UV index in September?
Average temperature in September
Gulkana, AK
- Average high temperature in September: 51.6°F
The warmest month (with the highest average high temperature) is July (67.5°F).
The month with the lowest average high temperature is January (9.1°F).
- Average low temperature in September: 36.5°F
The month with the highest average low temperature is July (47.5°F).
The coldest month (with the lowest average low temperature) is January (-1.8°F).
Average pressure in September
Gulkana, AK
- Average pressure in September: 29.78"Hg
The month with the highest atmospheric pressure is July (29.95"Hg).
The months with the lowest atmospheric pressure are September, October, November and December (29.78"Hg).
Average wind speed in September
Gulkana, AK
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is June (6.2mph).
The calmest months (with the lowest average wind speed) are January and December (4.5mph).
Average humidity in September
Gulkana, AK
- Average humidity in September: 72%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is June (57%).
Average rainfall in September
Gulkana, AK
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is August (0.91").
The driest month (with the least rainfall) is April (0.2").
Average rainfall days in September
Gulkana, AK
- Average rainfall days in September: 10.1 days
The month with the highest number of rainy days is August (11.3 days).
The months with the least rainy days are February and November (3.7 days).
Average snowfall in September
Gulkana, AK
- Average snowfall in September: 0.2"
The month with the highest snowfall is December (4.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Gulkana, AK
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is December (11.2 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Gulkana, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 42min).
The month with the shortest days is December (Average daylight: 5h and 18min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 14h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 54min).
Average sunshine days in September
Gulkana, AK
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is March (24.2 days).
The month with the least sunshine days is August (17.3 days).
Average UV index in September
Gulkana, AK
- Average UV index in September: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, September, October, November and December (UV index 2).
Average cloud cover in September
Gulkana, AK
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Gulkana, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and March (4mi).
Gulkana, Alaska, USA
Weather forecast for your location
2. Allow the app to use your location