Nome, AK weather in September: average temperature & climate

For comparison, the hottest month in Nome , July , has days with highs of 56°F (13°C) and lows of 49°F (10°C) . The coldest month, January has days with highs of 9°F (-13°C) and lows of 1°F (-17°C) . This graph shows how an average day looks like in Nome in September based on historical data.

The average temperature in Nome in September for a typical day ranges from a high of 48°F (9°C) to a low of 42°F (5°C) . Some would describe it as cold and breezy .

The wettest month in Nome is August where a typical day has a 28 % chance of precipitation and gets 0.09 inches (2.3 mm) of precipitation, while the dryest month in Nome is April where a typical day has a 9 % chance of precipitation and gets 0.08 inches (2.2 mm) of precipitation. These graphs show the probability of it raining/snowing in September and the amount of rainfall.

In Nome in September , there’s a 24 % chance of rain on an average day. And on the average day it rains or snows, we get 0.39 in ( 9.9 mm) of precipitation. In more common terms of how much that is, some would describe it as light rain .

The average amount of time that the sky is clear or sunny (partly cloudy or less) in Nome during September is 9.7 hours ( 40 % of the day). For comparison, the month with the most clear, sunny days in Nome is March with an average of 10.6 hours per day while July has the shortest amount of cloud-free hours with only 8.2 hours per day. This graph shows the average amount of sunshine in Nome in September based on historical data.

The day with the longest amount of daylight in Nome is June 21st with 21.5 hours while December 23rd has the shortest amount of daylight with only 3.9 hours.

The average day in Nome during September has 13.1 hours of daylight, with sunrise at 8:22 AM and sunset at 9:29 PM .

In September , Nome is very humid with an average amount of 85 % (relative humidity), which could be described as humid but cool . January has the highest relative humidity at 100 % and is the least humid in June at 81 %. This graph shows the average amount of humidity in Nome throughout September based on historical data.

Historically, the wind in Nome during September blows at an average speed of 16.0 mph (25.8 kph) . The windiest month is December with an average wind speed of 21.0 mph (33.8 kph) , while the calmest month is July with an average wind speed of 12.9 mph (20.7 kph) . This graph shows the average wind speed in Nome in September based on historical data.

With an average high of 48°F (9°C) and a low of 42°F (5°C) , it generally feels cold and breezy . With that in mind, most people would dress in something warm like a jacket .

We’ve collected the weather data for Nome during all other months of the year too:

Where does this data come from

Weather data for Nome was collected from the MERRA-2 project from NASA, which used a climate model combined with historical data from weather stations around the world to estimate what the conditions were like for every point on the Earth.

For all data based on historical data, we’ve averaged the data from the past 11 years (2010-2020). For example, for the hourly temperature at 10am, we’ve looked at the temperature at 10am on every day in September (e.g., September 1, September 2, etc. in 2010, 2011, etc.) and took the arithmetic mean. We did not smooth the data, so for example, our daily temperature line will have some randomness due to the fact that weather is random in the first place.