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 in Potlatch, Idaho, comes with a reduction in the average high-temperature, receding from 83.7°F (28.7°C) in August to a still warm 73.4°F (23°C). Potlatch records a pronounced decline from the day's peak to an average nighttime low-temperature of 51.4°F (10.8°C) throughout September.Humidity
In September, the average relative humidity in Potlatch is 48%.Rainfall
In Potlatch, Idaho, during September, the rain falls for 8.1 days and regularly aggregates up to 0.63" (16mm) of precipitation. In Potlatch, during the entire year, the rain falls for 143.2 days and collects up to 20.51" (521mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Potlatch. Throughout September, in the average 0.2 snowfall days, it receives 0.28" (7mm) of snow. Throughout the year, in Potlatch, there are 60.2 snowfall days, and 47.24" (1200mm) of snow is accumulated.Daylight
In Potlatch, the average length of the day in September is 12h and 32min.On the first day of September in Potlatch, sunrise is at 6:08 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:28 pm PDT.
Sunshine
In September, the average sunshine is 10.3h.UV index
In Potlatch, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. 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
What is the usual temperature for Potlatch in September?
What is the average humidity in September in Potlatch?
How many days does it rain in September in Potlatch?
When does it start to snow in Potlatch?
How many hours of daylight does Potlatch have in September?
When is the sunrise / sunset in September in Potlatch?
How long on average sun shines in September in Potlatch?
What is the UV index intensity in September in Potlatch?
Average temperature in September
Potlatch, ID
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in September
Potlatch, ID
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in September
Potlatch, ID
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in September
Potlatch, ID
- Average humidity in September: 48%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).
Average rainfall in September
Potlatch, ID
- Average rainfall in September: 0.63"
The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in September
Potlatch, ID
- Average rainfall days in September: 8.1 days
The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall in September
Potlatch, ID
- Average snowfall in September: 0.28"
The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Potlatch, ID
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Potlatch, ID
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).
Average sunshine days in September
Potlatch, ID
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in September
Potlatch, ID
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Potlatch, ID
- Average cloud cover in September: 19
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in September
Potlatch, 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 and December (4mi).
Potlatch, Idaho, USA
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