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
Delta Junction's progression into September involves a drop in the average high-temperature, receding from a comfortable 64.4°F (18°C) in August to a cool 53.6°F (12°C). Nighttime temperature experiences an average drop to a cold 37.9°F (3.3°C) in September.Humidity
In September, the average relative humidity in Delta Junction is 67%.Rainfall
In Delta Junction, during September, the rain falls for 8.4 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, in Delta Junction, there are 70.4 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Snowfall
January through May, August through December are months with snowfall in Delta Junction. In Delta Junction, during September, snow falls for 1.9 days and regularly aggregates up to 0.71" (18mm) of snow. Throughout the year, there are 56.2 snowfall days, and 18.66" (474mm) of snow is accumulated.Daylight
In Delta Junction, the average length of the day in September is 12h and 58min.On the first day of September, sunrise is at 6:28 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 7:51 am and sunset at 7:13 pm AKDT.
Sunshine
In September, the average sunshine in Delta Junction is 8.4h.UV index
January through March, September through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, an average UV index of 2 transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the temperature in September in Delta Junction?
What is the average humidity in September in Delta Junction?
How much does it rain in Delta Junction in September?
How much does it snow in Delta Junction in September?
How many hours of daylight does Delta Junction have in September?
What time are sunrise and sunset in September in Delta Junction?
How many hours of sunshine does Delta Junction have in September?
What is the month with the lowest UV index in Delta Junction?
How high is the UV index in September in Delta Junction?
Average temperature in September
Delta Junction, AK
- Average high temperature in September: 53.6°F
The warmest month (with the highest average high temperature) is July (69.8°F).
The month with the lowest average high temperature is January (5.4°F).
- Average low temperature in September: 37.9°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (-5.8°F).
Average pressure in September
Delta Junction, AK
- Average pressure in September: 29.77"Hg
The month with the highest atmospheric pressure is February (29.97"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).
Average wind speed in September
Delta Junction, AK
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in September
Delta Junction, AK
- Average humidity in September: 67%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (51%).
Average rainfall in September
Delta Junction, AK
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is August (1.57").
The driest month (with the least rainfall) is February (0.24").
Average rainfall days in September
Delta Junction, AK
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is August (12.3 days).
The month with the least rainy days is November (1.7 days).
Average snowfall in September
Delta Junction, AK
- Average snowfall in September: 0.71"
The months with the highest snowfall are March and October (2.99").
The months with the least snowfall are June and July (0").
Average snowfall days in September
Delta Junction, AK
- Average snowfall days in September: 1.9 days
The month with the highest number of snowfall days is November (9.6 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Delta Junction, AK
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is June (Average sunshine: 13h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in September
Delta Junction, AK
- Average sunshine days in September: 18.6 days
The months with the most sunshine days are January and December (23.5 days).
The month with the least sunshine days is August (17.4 days).
Average UV index in September
Delta Junction, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, September, October, November and December (UV index 2).
Average cloud cover in September
Delta Junction, AK
- Average cloud cover in September: 40
The months with the most cloud cover are March and November (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in September
Delta Junction, 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, February, March, April, November and December (5mi).
Delta Junction, Alaska, USA
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