September weather forecastSaint Paul, AK
September
Weather in September
The first month of the autumn, September, is also a frosty month in Saint Paul, Alaska, with an average temperature fluctuating between 46.4°F (8°C) and 48.6°F (9.2°C).Temperature
The average high-temperature in September, at a chilly 48.6°F (9.2°C), reveals a modest deviation from August's 50.7°F (10.4°C). A mean low-temperature of 46.4°F (8°C) is anticipated during the month of September in Saint Paul, a slight step down from the daytime high.Humidity
In September, the average relative humidity is 86%.Rainfall
In September, the rain falls for 17.9 days. Throughout September, 2.17" (55mm) of precipitation is accumulated. In Saint Paul, during the entire year, the rain falls for 153.3 days and collects up to 23.03" (585mm) of precipitation.Snowfall
In Saint Paul, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 44min.On the first day of September, sunrise is at 8:25 am and sunset at 10:16 pm. On the last day of the month, sunrise is at 9:24 am and sunset at 8:56 pm AKDT.
Sunshine
In Saint Paul, the average sunshine in September is 4.4h.UV index
The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 2 during September translates into the following guidance:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint Paul, AK
- Average high temperature in September: 48.6°F
The warmest month (with the highest average high temperature) is August (50.7°F).
The month with the lowest average high temperature is March (28.9°F).
- Average low temperature in September: 46.4°F
The month with the highest average low temperature is August (48.7°F).
The coldest month (with the lowest average low temperature) is March (24.3°F).
Average pressure in September
Saint Paul, AK
- Average pressure in September: 29.75"Hg
The month with the highest atmospheric pressure is July (29.92"Hg).
The month with the lowest atmospheric pressure is December (29.52"Hg).
Average wind speed in September
Saint Paul, AK
- Average wind speed in September: 17mph
The windiest month (with the highest average wind speed) is November (21.8mph).
The calmest month (with the lowest average wind speed) is July (12.4mph).
Average humidity in September
Saint Paul, AK
- Average humidity in September: 86%
The month with the highest relative humidity is July (94%).
The months with the lowest relative humidity are November and December (77%).
Average rainfall in September
Saint Paul, AK
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is October (2.87").
The driest month (with the least rainfall) is June (1.02").
Average rainfall days in September
Saint Paul, AK
- Average rainfall days in September: 17.9 days
The month with the highest number of rainy days is October (20.7 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Saint Paul, AK
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Saint Paul, AK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Paul, AK
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 48min).
The month with the shortest days is December (Average daylight: 6h and 48min).
- Average sunshine in September: 4h and 24min
The month with the most sunshine is June (Average sunshine: 5h and 36min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).
Average sunshine days in September
Saint Paul, AK
- Average sunshine days in September: 8.6 days
The month with the most sunshine days is May (12.3 days).
The month with the least sunshine days is December (3.4 days).
Average UV index in September
Saint Paul, AK
- Average UV index in September: 2
The months with the highest UV index are July and August (UV index 3).
The months with the lowest UV index are March, April, May, November and December (UV index 1).
Average cloud cover in September
Saint Paul, AK
- Average cloud cover in September: 70
The month with the most cloud cover is July (Cloud cover 78).
The month with the least cloud cover is June (Cloud cover 68).
Average visibility in September
Saint Paul, AK
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).
