September weather forecast
Big Springs, ID

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Weather in September

September, the first month of the autumn in Big Springs, is still a comfortable month, with temperature in the range of an average low of 37.6°F (3.1°C) and an average high of 61.9°F (16.6°C).

Temperature

A change in temperatures is noted as August gives way to September, with average highs reducing from a pleasant 71.4°F (21.9°C) to a comfortable 61.9°F (16.6°C). With a significant daily temperature differential, Big Springs's nighttime temperature in September falls to an average of 37.6°F (3.1°C).

Humidity

The average relative humidity in September in Big Springs is 57%.

Rainfall

In Big Springs, in September, during 10.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Big Springs, during the entire year, the rain falls for 109.2 days and collects up to 23.15" (588mm) of precipitation.

Snowfall

January through July, September through December are months with snowfall. September is the first month it typically snows in Big Springs. Throughout September, in the average 2.4 snowfall days, it receives 3.27" (83mm) of snow. Throughout the year, in Big Springs, Idaho, there are 159.3 snowfall days, and 120.47" (3060mm) of snow is accumulated.

Daylight

In Big Springs, Idaho, the average length of the day in September is 12h and 30min.
On the first day of the month, sunrise is at 6:48 am and sunset at 8:00 pm. On the last day of September, in Big Springs, sunrise is at 7:22 am and sunset at 7:06 pm MDT.

Sunshine

In September, the average sunshine in Big Springs, Idaho, is 9.8h.

UV index

The average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 2 in September transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What is the average September temperature in Big Springs?

In Big Springs, 61.9°F (16.6°C) is the average high-temperature and 37.6°F (3.1°C) is the average low-temperature during September.

What is the average humidity in September in Big Springs?

The average relative humidity in September in Big Springs is 57%.

How many days does it rain in September in Big Springs?

In Big Springs, Idaho, in September, during 10.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When does it start to snow in Big Springs?

September is the first month it typically snows. Throughout September, in the average 2.4 snowfall days, it receives 3.27" (83mm) of snow.

What is the average length of the day in September in Big Springs?

In Big Springs, the average day length in September is 12h and 30min.

What time are sunrise and sunset in September in Big Springs?

On the first day of September in Big Springs, sunrise is at 6:48 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:06 pm MDT.

How many hours of sunshine does Big Springs have in September?

In September, the average sunshine duration in Big Springs, Idaho, is 9.8h.

How high is the UV index in September in Big Springs?

In Big Springs, Idaho, the average daily maximum UV index in September is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Big Springs, ID

Average temperature in September - Big Springs, ID
  • Average high temperature in September: 61.9°F

The warmest month (with the highest average high temperature) is July (72.9°F).
The month with the lowest average high temperature is December (20.1°F).

  • Average low temperature in September: 37.6°F

The month with the highest average low temperature is August (43.7°F).
The coldest month (with the lowest average low temperature) is December (4.8°F).

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Average pressure in September
Big Springs, ID

Average pressure in September - Big Springs, ID
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.24"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Big Springs, ID

Average wind speed in September - Big Springs, ID
  • Average wind speed in September: 6mph

The windiest month (with the highest average wind speed) is June (6.8mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in September
Big Springs, ID

Average humidity in September - Big Springs, ID
  • Average humidity in September: 57%

The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in September
Big Springs, ID

Average rainfall in September - Big Springs, ID
  • Average rainfall in September: 1.57"

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is July (0.91").

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Average rainfall days in September
Big Springs, ID

Average rainfall days in September - Big Springs, ID
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (2.2 days).

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Average snowfall in September
Big Springs, ID

Average snowfall in September - Big Springs, ID
  • Average snowfall in September: 3.27"

The month with the highest snowfall is February (17.83").
The month with the least snowfall is August (0").

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Average snowfall days in September
Big Springs, ID

Average snowfall days in September - Big Springs, ID
  • Average snowfall days in September: 2.4 days

The month with the highest number of snowfall days is March (24.4 days).
The months with the least snowfall days are July and August (0.2 days).

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Average daylight in September /
Average sunshine in September
Big Springs, ID

Average daylight in September / Average sunshine in September - Big Springs, ID
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 18min).

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Average sunshine days in September
Big Springs, ID

Average sunshine days in September - Big Springs, ID
  • Average sunshine days in September: 14.7 days

The months with the most sunshine days are July and September (14.7 days).
The month with the least sunshine days is February (5.3 days).

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Average UV index in September
Big Springs, ID

Average UV index in September - Big Springs, ID
  • Average UV index in September: 2

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

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Average cloud cover in September
Big Springs, ID

Average cloud cover in September - Big Springs, ID
  • Average cloud cover in September: 22

The month with the most cloud cover is February (Cloud cover 76).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in September
Big Springs, ID

Average visibility in September - Big Springs, ID
  • Average visibility in September: 6mi

The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (3mi).

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Big Springs, Idaho, USA

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