September weather forecastHope, AK
September
Weather in September
September, the first month of the autumn in Hope, is still a chilly month, with an average temperature varying between 45.5°F (7.5°C) and 36.3°F (2.4°C).Temperature
Transitioning from August to September involves a subtle drop in average high-temperatures, descending from a fresh 53.4°F (11.9°C) to a frosty 45.5°F (7.5°C). In Hope, an average low-temperature of 36.3°F (2.4°C) is recorded during September nights.Humidity
In September, the average relative humidity in Hope is 87%.Rainfall
In Hope, in September, it is raining for 18.7 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 158.6 rainfall days, and 23.62" (600mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. In Hope, during the entire year, snow falls for 92.4 days and aggregates up to 43.31" (1100mm) of snow.Daylight
The average length of the day in September is 12h and 51min.On the first day of September, sunrise is at 6:53 am and sunset at 9:02 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 7:31 pm AKDT.
Sunshine
The average sunshine in September is 5h.UV index
In Hope, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 2 in September leads to these recommendations:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hope, AK
- Average high temperature in September: 45.5°F
The warmest month (with the highest average high temperature) is July (56.8°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in September: 36.3°F
The month with the highest average low temperature is July (44.1°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in September
Hope, AK
- Average pressure in September: 29.75"Hg
The month with the highest atmospheric pressure is July (29.97"Hg).
The month with the lowest atmospheric pressure is November (29.66"Hg).
Average wind speed in September
Hope, AK
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are November and December (5.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Hope, AK
- Average humidity in September: 87%
The months with the highest relative humidity are March and December (92%).
The month with the lowest relative humidity is June (79%).
Average rainfall in September
Hope, AK
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in September
Hope, AK
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is February (6 days).
Average snowfall in September
Hope, AK
- Average snowfall in September: 0.12"
The month with the highest snowfall is December (9.57").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Hope, AK
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (17.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Hope, AK
- Average daylight in September: 12h and 54min
The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).
- Average sunshine in September: 5h and 0min
The month with the most sunshine is May (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 2h and 6min).
Average sunshine days in September
Hope, AK
- Average sunshine days in September: 9.7 days
The month with the most sunshine days is January (14.2 days).
The month with the least sunshine days is August (8 days).
Average UV index in September
Hope, AK
- Average UV index in September: 2
The months with the highest UV index are June and July (UV index 3).
The months with the lowest UV index are January, February, March, October, November and December (UV index 1).
Average cloud cover in September
Hope, AK
- Average cloud cover in September: 65
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is May (Cloud cover 55).
Average visibility in September
Hope, AK
- Average visibility in September: 5mi
The month with the highest visibility is June (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (4mi).
