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 start of September signals a decrease in the average high-temperature, transitioning from a warm 78.1°F (25.6°C) in August to a refreshing 67.8°F (19.9°C). Kellogg measures a considerable dip from daytime highs with an average low-temperature of 41.7°F (5.4°C) during September.Humidity
In Kellogg, the average relative humidity in September is 62%.Rainfall
In Kellogg, Idaho, in September, it is raining for 9.1 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, in Kellogg, there are 144.3 rainfall days, and 27.6" (701mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Kellogg. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.28" (7mm) of snow. In Kellogg, during the entire year, snow falls for 81.2 days and aggregates up to 73.58" (1869mm) of snow.Daylight
In September, the average length of the day in Kellogg is 12h and 33min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:24 pm. On the last day of September, in Kellogg, sunrise is at 6:43 am and sunset at 6:25 pm PDT.
Sunshine
In September, the average sunshine in Kellogg, Idaho, is 9.5h.UV index
In Kellogg, Idaho, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Kellogg in September?
What is the average humidity in September in Kellogg?
How much does it rain in Kellogg in September?
When does it start to snow in Kellogg?
How many hours of daylight does Kellogg have in September?
When are sunrise and sunset in September in Kellogg?
How long on average sun shines in September in Kellogg?
How high is the UV index in September in Kellogg?
Average temperature in September
Kellogg, ID
- Average high temperature in September: 67.8°F
The warmest months (with the highest average high temperature) are July and August (78.1°F).
The month with the lowest average high temperature is December (30°F).
- Average low temperature in September: 41.7°F
The month with the highest average low temperature is August (48.4°F).
The coldest month (with the lowest average low temperature) is December (19.6°F).
Average pressure in September
Kellogg, ID
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June, July and August (29.93"Hg).
Average wind speed in September
Kellogg, ID
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in September
Kellogg, ID
- Average humidity in September: 62%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in September
Kellogg, ID
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is January (4.21").
The driest months (with the least rainfall) are July and August (0.43").
Average rainfall days in September
Kellogg, ID
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is April (18 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in September
Kellogg, ID
- Average snowfall in September: 0.28"
The month with the highest snowfall is January (20.83").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Kellogg, ID
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (17.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Kellogg, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days in September
Kellogg, ID
- Average sunshine days in September: 20.2 days
The months with the most sunshine days are July and August (24.2 days).
The month with the least sunshine days is March (7 days).
Average UV index in September
Kellogg, ID
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Kellogg, ID
- Average cloud cover in September: 25
The months with the most cloud cover are January and December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in September
Kellogg, ID
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The month with the lowest visibility is January (3mi).
Kellogg, Idaho, USA
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