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 commencement of September involves a temperature shift, with the average high-temperature dropping from a cool 55.2°F (12.9°C) in August to a frosty 45°F (7.2°C). Throughout the month of September, McKinley Park witnesses an average temperature of 31.5°F (-0.3°C).Humidity
The average relative humidity in September is 82%.Rainfall
In McKinley Park, in September, during 15.3 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 129.7 rainfall days, and 15.04" (382mm) of precipitation is accumulated.Snowfall
January through May, August through December are months with snowfall in McKinley Park. In September, it is snowing for 4.1 days. Throughout September, 1.85" (47mm) of snow is accumulated. Throughout the year, there are 116.3 snowfall days, and 42.13" (1070mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 57min.On the first day of September, sunrise is at 6:42 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 7:26 pm AKDT.
Sunshine
In September, the average sunshine is 7.5h.UV index
In McKinley Park, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 2 in September transforms into this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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?
How many days does it rain in September?
How much does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
McKinley Park, AK
- Average high temperature in September: 45°F
The warmest month (with the highest average high temperature) is July (61.2°F).
The month with the lowest average high temperature is January (2.8°F).
- Average low temperature in September: 31.5°F
The month with the highest average low temperature is July (43.3°F).
The coldest month (with the lowest average low temperature) is January (-8°F).
Average pressure in September
McKinley Park, AK
- Average pressure in September: 29.76"Hg
The month with the highest atmospheric pressure is February (29.93"Hg).
The month with the lowest atmospheric pressure is September (29.76"Hg).
Average wind speed in September
McKinley Park, AK
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is December (5.6mph).
The calmest month (with the lowest average wind speed) is June (4.7mph).
Average humidity in September
McKinley Park, AK
- Average humidity in September: 82%
The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is June (67%).
Average rainfall in September
McKinley Park, AK
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is August (3.07").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in September
McKinley Park, AK
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is June (19.9 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in September
McKinley Park, AK
- Average snowfall in September: 1.85"
The month with the highest snowfall is October (7.4").
The months with the least snowfall are June and July (0").
Average snowfall days in September
McKinley Park, AK
- Average snowfall days in September: 4.1 days
The month with the highest number of snowfall days is March (18.8 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
McKinley Park, AK
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 30min).
The month with the shortest days is December (Average daylight: 4h and 36min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
McKinley Park, AK
- Average sunshine days in September: 10.3 days
The month with the most sunshine days is January (17.3 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in September
McKinley Park, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, March, October and December (UV index 1).
Average cloud cover in September
McKinley Park, AK
- Average cloud cover in September: 50
The month with the most cloud cover is March (Cloud cover 59).
The month with the least cloud cover is May (Cloud cover 41).
Average visibility in September
McKinley Park, AK
- Average visibility in September: 5mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January and March (3mi).
McKinley Park, Alaska, USA
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