September weather forecastHealy, AK
September
Weather in September
September, the first month of the autumn in Healy, is also a frosty month, with temperature in the range of an average low of 34°F (1.1°C) and an average high of 47.1°F (8.4°C).Temperature
Transition into September marks a drop in the average high-temperature, moving from a mild 57.6°F (14.2°C) in August to a chilly 47.1°F (8.4°C). September witnesses an average low-temperature hovering around an icy 34°F (1.1°C).Humidity
In Healy, the average relative humidity in September is 80%.Rainfall
In September, the rain falls for 12.7 days. Throughout September, 1.3" (33mm) of precipitation is accumulated. Throughout the year, there are 106.3 rainfall days, and 14.49" (368mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, August through December. In Healy, during September, snow falls for 2.8 days and regularly aggregates up to 1.73" (44mm) of snow. In Healy, during the entire year, snow falls for 93.4 days and aggregates up to 35.94" (913mm) of snow.Daylight
In September, the average length of the day is 12h and 58min.On the first day of September, sunrise is at 6:42 am and sunset at 9:09 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 7:26 pm AKDT.
Sunshine
In Healy, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 2 in September transforms into this advice:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Healy, AK
- Average high temperature in September: 47.1°F
The warmest month (with the highest average high temperature) is July (62.8°F).
The month with the lowest average high temperature is January (4.6°F).
- Average low temperature in September: 34°F
The month with the highest average low temperature is July (45.3°F).
The coldest month (with the lowest average low temperature) is January (-6.3°F).
Average pressure in September
Healy, 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
Healy, AK
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is May (5.5mph).
The calmest months (with the lowest average wind speed) are March and November (4.6mph).
Average humidity in September
Healy, AK
- Average humidity in September: 80%
The month with the highest relative humidity is March (93%).
The month with the lowest relative humidity is June (64%).
Average rainfall in September
Healy, AK
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is August (3.15").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Healy, AK
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is June (19.6 days).
The months with the least rainy days are February and December (1.5 days).
Average snowfall in September
Healy, AK
- Average snowfall in September: 1.73"
The month with the highest snowfall is March (6.89").
The months with the least snowfall are June and July (0").
Average snowfall days in September
Healy, AK
- Average snowfall days in September: 2.8 days
The month with the highest number of snowfall days is March (17.4 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in September /
Average sunshine in September
Healy, AK
- Average daylight in September: 13h and 0min
The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).
- Average sunshine in September: 7h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 18min).
Average sunshine days in September
Healy, AK
- Average sunshine days in September: 13 days
The month with the most sunshine days is January (21.2 days).
The month with the least sunshine days is June (8.5 days).
Average UV index in September
Healy, 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, November and December (UV index 1).
Average cloud cover in September
Healy, AK
- Average cloud cover in September: 49
The month with the most cloud cover is March (Cloud cover 61).
The month with the least cloud cover is May (Cloud cover 42).
Average visibility in September
Healy, 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).
