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
September comes with a drop in the average high-temperature, falling from August's moderately hot 78.4°F (25.8°C) to a refreshing 67.8°F (19.9°C). Osburn, during the nights of September, registers a substantial plunge from the daytime high, averaging at an icy 40.8°F (4.9°C).Humidity
In September, the average relative humidity is 63%.Rainfall
In Osburn, during September, the rain falls for 9.1 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, in Osburn, there are 128.7 rainfall days, and 24.65" (626mm) 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 0.2" (5mm) of snow. Throughout the year, in Osburn, Idaho, there are 74.7 snowfall days, and 63.27" (1607mm) of snow is accumulated.Daylight
In Osburn, the average length of the day in September is 12h and 33min.On the first day of September in Osburn, sunrise is at 6:03 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:24 pm PDT.
Sunshine
The average sunshine in September in Osburn is 9.2h.UV index
In Osburn, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
What is the temperature in September in Osburn?
What is the average humidity in September in Osburn?
How many days does it rain in September in Osburn?
When does it start to snow in Osburn?
How many hours of daylight does Osburn have in September?
When are sunrise and sunset in September in Osburn?
How many hours of sunshine does Osburn have in September?
How high is the UV index in September in Osburn?
Average temperature in September
Osburn, ID
- Average high temperature in September: 67.8°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (30°F).
- Average low temperature in September: 40.8°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (19.2°F).
Average pressure in September
Osburn, 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 and August (29.93"Hg).
Average wind speed in September
Osburn, ID
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest months (with the lowest average wind speed) are September and December (4.2mph).
Average humidity in September
Osburn, ID
- Average humidity in September: 63%
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
Osburn, ID
- Average rainfall in September: 0.94"
The wettest month (with the highest rainfall) is January (3.07").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in September
Osburn, ID
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is April (17.3 days).
The month with the least rainy days is July (6 days).
Average snowfall in September
Osburn, ID
- Average snowfall in September: 0.2"
The month with the highest snowfall is January (16.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Osburn, ID
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Osburn, 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 1min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Osburn, ID
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (9.3 days).
Average UV index in September
Osburn, ID
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Osburn, ID
- Average cloud cover in September: 27
The months with the most cloud cover are January, February and December (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in September
Osburn, ID
- Average visibility in September: 6mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Osburn, Idaho, USA
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