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
As Dehlin enters September, the average high-temperature decreases from the a moderately hot 81.1°F (27.3°C) of August to a pleasant 71.2°F (21.8°C). September nights in Dehlin bring a pronounced temperature shift, with averages hovering around a chilly 46.4°F (8°C).Humidity
The average relative humidity in September in Dehlin is 45%.Rainfall
In Dehlin, in September, it is raining for 9.3 days, with typically 1.18" (30mm) of accumulated precipitation. In Dehlin, during the entire year, the rain falls for 101.4 days and collects up to 12.72" (323mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Dehlin. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 0.2" (5mm) of snow. In Dehlin, during the entire year, snow falls for 85.8 days and aggregates up to 40.94" (1040mm) of snow.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September, sunrise is at 6:51 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:09 pm MDT.
Sunshine
The average sunshine in September in Dehlin is 10h.UV index
In September, the average daily maximum UV index in Dehlin is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 3 during September translates into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What are the temperatures in Dehlin in September?
What is the average humidity in September in Dehlin?
How much does it rain in Dehlin in September?
When does it start snowing in Dehlin?
How many hours of daylight does Dehlin have in September?
What time are sunrise and sunset in September in Dehlin?
How many hours of sunshine does Dehlin have in September?
What is the UV index intensity in September in Dehlin?
Average temperature in September
Dehlin, ID
- Average high temperature in September: 71.2°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in September: 46.4°F
The month with the highest average low temperature is July (52.7°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in September
Dehlin, ID
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Dehlin, ID
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is June (7.8mph).
The calmest month (with the lowest average wind speed) is January (5.5mph).
Average humidity in September
Dehlin, ID
- Average humidity in September: 45%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (39%).
Average rainfall in September
Dehlin, ID
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (1.54").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in September
Dehlin, ID
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Dehlin, ID
- Average snowfall in September: 0.2"
The month with the highest snowfall is January (8.11").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Dehlin, ID
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Dehlin, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Dehlin, ID
- Average sunshine days in September: 17.8 days
The month with the most sunshine days is July (19.8 days).
The month with the least sunshine days is February (10.3 days).
Average UV index in September
Dehlin, 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 and December (UV index 1).
Average cloud cover in September
Dehlin, ID
- Average cloud cover in September: 16
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Dehlin, ID
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
Dehlin, Idaho, USA
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