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 tropical 90°F (32.2°C) in August to a warm 79.3°F (26.3°C). Contrasted against daytime highs, Payette records an average nighttime low of 54.1°F (12.3°C) in September.Humidity
In September, the average relative humidity is 37%.Rainfall
In Payette, in September, during 4.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. In Payette, during the entire year, the rain falls for 100.3 days and collects up to 10.16" (258mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September in Payette, Idaho, is 12h and 29min.On the first day of the month, sunrise is at 7:11 am and sunset at 8:23 pm. On the last day of September, in Payette, sunrise is at 7:45 am and sunset at 7:29 pm MDT.
Sunshine
In September, the average sunshine in Payette is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the UV index of 5 transforms into the following advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the usual temperature for Payette in September?
What is the average humidity in September in Payette?
How many days does it rain in September in Payette?
When it does not snow in Payette?
How many hours of daylight does Payette have in September?
When are sunrise and sunset in September in Payette?
How many hours of sunshine does Payette have in September?
What is the UV index reading in September in Payette?
Average temperature in September
Payette, ID
- Average high temperature in September: 79.3°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is December (35.1°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is August (61°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).
Average pressure in September
Payette, ID
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in September
Payette, ID
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is January (3.6mph).
Average humidity in September
Payette, ID
- Average humidity in September: 37%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in September
Payette, ID
- Average rainfall in September: 0.31"
The wettest month (with the highest rainfall) is December (1.69").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Payette, ID
- Average rainfall days in September: 4.8 days
The month with the highest number of rainy days is March (15.5 days).
The month with the least rainy days is August (3 days).
Average snowfall in September
Payette, ID
- Average snowfall in September: 0"
The month with the highest snowfall is December (6.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Payette, ID
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Payette, 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: 8h and 54min).
- Average sunshine in September: 9h and 3min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Payette, ID
- Average sunshine days in September: 24 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is March (13.2 days).
Average UV index in September
Payette, ID
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Payette, ID
- Average cloud cover in September: 14
The months with the most cloud cover are January and December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in September
Payette, ID
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Payette, Idaho, USA
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