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 transition into September involves a small decrease in the average high-temperature, dipping slightly from a mild 59.5°F (15.3°C) in August to a cool 52.2°F (11.2°C). Tuomi experiences a nighttime temperature average of 42.4°F (5.8°C) during September.Humidity
In September, the average relative humidity in Tuomi is 78%.Rainfall
September is the month with the most rainfall. Rain falls for 17.4 days and accumulates 2.2" (56mm) of precipitation.Snowfall
Months with snowfall in Tuomi are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 0.16" (4mm) of snow. In Tuomi, during the entire year, snow falls for 67.9 days and aggregates up to 29.09" (739mm) of snow.Daylight
In September, the average length of the day is 12h and 52min.On the first day of the month, sunrise is at 6:53 am and sunset at 9:04 pm. On the last day of September, sunrise is at 8:05 am and sunset at 7:32 pm AKDT.
Sunshine
In September, the average sunshine is 7.7h.UV index
In September, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 2 during September translates into these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Opt for tightly woven and loose clothing to enhance protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the wettest month?
How much does it rain in September?
When does it start to snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Tuomi have in September?
How high is the UV index in September?
Average temperature in September
Tuomi, AK
- Average high temperature in September: 52.2°F
The warmest month (with the highest average high temperature) is July (62.2°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in September: 42.4°F
The month with the highest average low temperature is July (50.4°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in September
Tuomi, AK
- Average pressure in September: 29.75"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.67"Hg).
Average wind speed in September
Tuomi, AK
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is November (5.4mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).
Average humidity in September
Tuomi, AK
- Average humidity in September: 78%
The months with the highest relative humidity are February and March (87%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Tuomi, AK
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is September (2.2").
The driest month (with the least rainfall) is May (0.59").
Average rainfall days in September
Tuomi, AK
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is August (19.2 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Tuomi, AK
- Average snowfall in September: 0.16"
The month with the highest snowfall is December (6.85").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Tuomi, AK
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is February (12.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Tuomi, AK
- Average daylight in September: 12h and 5min
The month with the longest days is June (Average daylight: 19h and 12min).
The month with the shortest days is December (Average daylight: 5h and 36min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is May (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Tuomi, AK
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is May (16.9 days).
The months with the least sunshine days are August and September (9.7 days).
Average UV index in September
Tuomi, 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 December (UV index 1).
Average cloud cover in September
Tuomi, AK
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 46).
The month with the least cloud cover is May (Cloud cover 38).
Average visibility in September
Tuomi, AK
- Average visibility in September: 6mi
The months with the highest visibility are May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March and April (5mi).
Tuomi, Alaska, USA
Weather forecast for your location
2. Allow the app to use your location