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 onset of September introduces a moderate change in Ruby's weather, with average high-temperatures falling from August's refreshing 60.4°F (15.8°C) to a chilly 48.7°F (9.3°C). In Ruby, the expected average low-temperature for September is an icy 35.6°F (2°C).Humidity
In September, the average relative humidity in Ruby is 82%.Rainfall
In Ruby, in September, it is raining for 15 days, with typically 1.57" (40mm) of accumulated precipitation. In Ruby, during the entire year, the rain falls for 116.7 days and collects up to 14.8" (376mm) of precipitation.Snowfall
Months with snowfall in Ruby are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 2.3 snowfall days, it receives 0.55" (14mm) of snow. In Ruby, during the entire year, snow falls for 115.2 days and aggregates up to 43.07" (1094mm) of snow.Daylight
In September, the average length of the day in Ruby is 12h and 59min.On the first day of the month, sunrise is at 7:05 am and sunset at 9:37 pm. On the last day of September, sunrise is at 8:31 am and sunset at 7:51 pm AKDT.
Sunshine
The average sunshine in September in Ruby is 5.2h.UV index
In September, the average daily maximum UV index in Ruby is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 2 in September interprets into the following advice:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
What is the temperature in September in Ruby?
What is the average humidity in September in Ruby?
How many days does it rain in September in Ruby?
When does it start snowing in Ruby?
How many hours of daylight does Ruby have in September?
When are sunrise and sunset in September in Ruby?
How many hours of sunshine does Ruby have in September?
What is the UV index reading in September in Ruby?
Average temperature in September
Ruby, AK
- Average high temperature in September: 48.7°F
The warmest month (with the highest average high temperature) is July (67.3°F).
The month with the lowest average high temperature is January (-0.8°F).
- Average low temperature in September: 35.6°F
The month with the highest average low temperature is July (49.5°F).
The coldest month (with the lowest average low temperature) is January (-10.5°F).
Average pressure in September
Ruby, AK
- Average pressure in September: 29.76"Hg
The month with the highest atmospheric pressure is February (29.93"Hg).
The months with the lowest atmospheric pressure are September and October (29.76"Hg).
Average wind speed in September
Ruby, AK
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is September (5.2mph).
The calmest month (with the lowest average wind speed) is January (4.6mph).
Average humidity in September
Ruby, AK
- Average humidity in September: 82%
The months with the highest relative humidity are January, February and March (96%).
The month with the lowest relative humidity is June (59%).
Average rainfall in September
Ruby, AK
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is August (2.05").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Ruby, AK
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is August (19 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in September
Ruby, AK
- Average snowfall in September: 0.55"
The month with the highest snowfall is December (8.62").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Ruby, AK
- Average snowfall days in September: 2.3 days
The month with the highest number of snowfall days is March (20.3 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Ruby, AK
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 21h and 24min).
The month with the shortest days is December (Average daylight: 4h and 0min).
- Average sunshine in September: 5h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Ruby, AK
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is January (18 days).
The month with the least sunshine days is April (6.5 days).
Average UV index in September
Ruby, AK
- Average UV index in September: 2
The months with the highest UV index are May, June and July (UV index 4).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Ruby, AK
- Average cloud cover in September: 59
The month with the most cloud cover is April (Cloud cover 77).
The month with the least cloud cover is June (Cloud cover 47).
Average visibility in September
Ruby, AK
- Average visibility in September: 5mi
The months with the highest visibility are June and July (6mi).
The months with the lowest visibility are January, February, March, April and December (2mi).
Ruby, Alaska, USA
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