September weather forecastAberdeen, ID
September
Weather in September
September, the first month of the autumn in Aberdeen, is also a moderately hot month, with an average temperature fluctuating between 74.7°F (23.7°C) and 52.2°F (11.2°C).Temperature
The shift to September brings a decrease in the average high-temperature, falling from a warm 85.5°F (29.7°C) in August to a still moderately hot 74.7°F (23.7°C). Aberdeen experiences a significant reduction from daytime highs with an average low-temperature of 52.2°F (11.2°C) in September.Humidity
In September, the average relative humidity in Aberdeen is 37%.Rainfall
In Aberdeen, Idaho, during September, the rain falls for 6.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, there are 107.4 rainfall days, and 9.29" (236mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Aberdeen. Throughout September, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, in Aberdeen, there are 61.9 snowfall days, and 25.79" (655mm) of snow is accumulated.Daylight
In September, the average length of the day in Aberdeen is 12h and 29min.On the first day of the month, sunrise is at 6:56 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:13 pm MDT.
Sunshine
In September, the average sunshine in Aberdeen is 9.8h.UV index
In Aberdeen, Idaho, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aberdeen, ID
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is December (29.3°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is August (58.5°F).
The coldest months (with the lowest average low temperature) are January and December (17.8°F).
Average pressure in September
Aberdeen, ID
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Aberdeen, ID
- Average wind speed in September: 7.8mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is January (6.9mph).
Average humidity in September
Aberdeen, ID
- Average humidity in September: 37%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (32%).
Average rainfall in September
Aberdeen, ID
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is March (1.26").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Aberdeen, ID
- Average rainfall days in September: 6.5 days
The months with the highest number of rainy days are March and April (13.3 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in September
Aberdeen, ID
- Average snowfall in September: 0.24"
The month with the highest snowfall is January (7.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Aberdeen, ID
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Aberdeen, ID
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 48min
The months with the most sunshine are June and July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Aberdeen, ID
- Average sunshine days in September: 20.6 days
The months with the most sunshine days are July and August (21.3 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in September
Aberdeen, ID
- Average UV index in September: 4
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Aberdeen, ID
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in September
Aberdeen, ID
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).
