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
With September's onset, the weather shows a temperature decrease, transitioning from a moderately hot 81.5°F (27.5°C) in August to an agreeable 71.1°F (21.7°C). With a notable disparity from daily peak temperatures, the average low-temperature settles at a frosty 46°F (7.8°C) throughout September.Humidity
In Worley, the average relative humidity in September is 57%.Rainfall
In Worley, in September, during 8.6 rainfall days, 0.87" (22mm) of precipitation is typically accumulated. In Worley, Idaho, during the entire year, the rain falls for 148.8 days and collects up to 23.86" (606mm) of precipitation.Snowfall
Months with snowfall in Worley, Idaho, are January through May, September through December. 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 Worley, during the entire year, snow falls for 67.9 days and aggregates up to 53.5" (1359mm) of snow.Daylight
The average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 6:07 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:28 pm PDT.
Sunshine
In Worley, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When does it start to snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Worley, ID
- Average high temperature in September: 71.1°F
The warmest month (with the highest average high temperature) is August (81.5°F).
The month with the lowest average high temperature is December (32.2°F).
- Average low temperature in September: 46°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is December (22.1°F).
Average pressure in September
Worley, ID
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in September
Worley, ID
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August, September and December (4.3mph).
Average humidity in September
Worley, ID
- Average humidity in September: 57%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Worley, ID
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is January (3.39").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in September
Worley, ID
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is March (18.6 days).
The month with the least rainy days is August (5.6 days).
Average snowfall in September
Worley, ID
- Average snowfall in September: 0.28"
The month with the highest snowfall is January (15.2").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Worley, ID
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is December (16.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Worley, 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 4min
The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Worley, ID
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is July (22.8 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in September
Worley, ID
- Average UV index in September: 4
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
Worley, ID
- Average cloud cover in September: 23
The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility in September
Worley, ID
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
Worley, Idaho, USA
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