September weather forecast
Sweet, ID

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Weather in September

September, the first month of the autumn in Sweet, is still a warm month, with an average temperature ranging between max 78.1°F (25.6°C) and min 53.4°F (11.9°C).

Temperature

Sweet's transition into September involves a shift in temperature, receding from a tropical 89.2°F (31.8°C) in August to a moderately hot 78.1°F (25.6°C). Nightly readings in September display a noticeable downturn from daily highs, with the average low-temperature registering a fresh 53.4°F (11.9°C).

Humidity

The average relative humidity in September is 38%.

Rainfall

In Sweet, in September, it is raining for 5 days, with typically 0.31" (8mm) of accumulated precipitation. In Sweet, Idaho, during the entire year, the rain falls for 91.7 days and collects up to 10.28" (261mm) of precipitation.

Snowfall

May through October are months without snowfall in Sweet.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September in Sweet, Idaho, sunrise is at 7:09 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:27 pm MDT.

Sunshine

The average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index in Sweet is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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Frequently asked questions

What is the usual temperature for Sweet in September?

September temperatures in Sweet, Idaho, vary between a high-temperature of 78.1°F (25.6°C) and a low-temperature of 53.4°F (11.9°C).

What is the average humidity in September in Sweet?

In September, the average relative humidity in Sweet is 38%.

How many days does it rain in September in Sweet?

In Sweet, Idaho, in September, it is raining for 5 days, with typically 0.31" (8mm) of accumulated precipitation.

When it does not snow in Sweet?

May through October are months without snowfall.

What is the average length of the day in September in Sweet?

In September, the average day length in Sweet is 12h and 29min.

When are sunrise and sunset in September in Sweet?

In September, on the first day of the month, sunrise is at 7:09 am and sunset at 8:20 pm. On the last day of the month, in Sweet, Idaho, sunrise is at 7:42 am and sunset at 7:27 pm MDT.

How many hours of sunshine does Sweet have in September?

The average sunshine duration in September in Sweet, Idaho, is 9.5h.

What is the UV index intensity in September in Sweet?

The average daily maximum UV index in September in Sweet, Idaho, is 4. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Sweet, ID

Average temperature in September - Sweet, ID
  • Average high temperature in September: 78.1°F

The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is December (34.9°F).

  • Average low temperature in September: 53.4°F

The month with the highest average low temperature is August (60.3°F).
The coldest month (with the lowest average low temperature) is December (22.8°F).

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Average pressure in September
Sweet, ID

Average pressure in September - Sweet, ID
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

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Average wind speed in September
Sweet, ID

Average wind speed in September - Sweet, ID
  • Average wind speed in September: 4.9mph

The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is January (4.2mph).

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Average humidity in September
Sweet, ID

Average humidity in September - Sweet, ID
  • Average humidity in September: 38%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are July and August (31%).

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Average rainfall in September
Sweet, ID

Average rainfall in September - Sweet, ID
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is March (1.54").
The driest month (with the least rainfall) is July (0.16").

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Average rainfall days in September
Sweet, ID

Average rainfall days in September - Sweet, ID
  • Average rainfall days in September: 5 days

The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is July (3.2 days).

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Average snowfall in September
Sweet, ID

Average snowfall in September - Sweet, ID
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Sweet, ID

Average snowfall days in September - Sweet, ID
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Sweet, ID

Average daylight in September / Average sunshine in September - Sweet, 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: 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 18min).

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Average sunshine days in September
Sweet, ID

Average sunshine days in September - Sweet, ID
  • Average sunshine days in September: 23.7 days

The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is March (15.3 days).

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Average UV index in September
Sweet, ID

Average UV index in September - Sweet, ID
  • Average UV index in September: 4

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).

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Average cloud cover in September
Sweet, ID

Average cloud cover in September - Sweet, ID
  • Average cloud cover in September: 14

The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 8).

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Average visibility in September
Sweet, ID

Average visibility in September - Sweet, 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).

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Sweet, Idaho, USA

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