September weather forecast
Silver Gate, MT

Weather in September

The first month of the autumn, September, is also a moderate month in Silver Gate, Montana, with temperature in the range of an average high of 59.9°F (15.5°C) and an average low of 36.1°F (2.3°C).

Temperature

In September, the average high-temperature decreases from an agreeable 69.6°F (20.9°C) in August to a mild 59.9°F (15.5°C). In September, in Silver Gate, the average low-temperature is 36.1°F (2.3°C).

Humidity

In September, the average relative humidity in Silver Gate, Montana, is 57%.

Rainfall

In Silver Gate, during 9 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 102.8 rainfall days, and 23.98" (609mm) of precipitation is accumulated.

Snowfall

January through December are months with snowfall in Silver Gate, Montana. In Silver Gate, snow falls for 4.5 days, with typically accumulated 5.55" (141mm) of snow. Throughout the year, in Silver Gate, there are 186.1 snowfall days, and 135.16" (3433mm) of snow is accumulated.

Daylight

In Silver Gate, the average length of the day in September is 12h and 31min.
On the first day of September in Silver Gate, sunrise is at 6:42 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:02 pm MDT.

Sunshine

In September, the average sunshine in Silver Gate is 10.1h.

UV index

The average daily maximum UV index in September is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 2 in September interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in September in Silver Gate?

The average relative humidity in September in Silver Gate, Montana, is 57%.

How much does it rain in Silver Gate in September?

In Silver Gate, during September, the rain falls for 9 days and regularly aggregates up to 1.61" (41mm) of precipitation.

How much does it snow in Silver Gate in September?

In Silver Gate, Montana, in September, snow falls for 4.5 days, with typically accumulated 5.55" (141mm) of snow.

How many hours of daylight does Silver Gate have in September?

In September, the average day length in Silver Gate is 12h and 31min.

When is the sunrise / sunset in September in Silver Gate?

In September, on the first day of the month, sunrise is at 6:42 am and sunset at 7:57 pm. On the last day of the month, in Silver Gate, sunrise is at 7:17 am and sunset at 7:02 pm MDT.

How long on average sun shines in September in Silver Gate?

The average sunshine duration in September is 10.1h.

What is the UV index intensity in September in Silver Gate?

In Silver Gate, Montana, the average daily maximum UV index in September is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Silver Gate, MT

Average temperature in September - Silver Gate, MT
  • Average high temperature in September: 59.9°F

The warmest month (with the highest average high temperature) is July (70.9°F).
The month with the lowest average high temperature is December (18.9°F).

  • Average low temperature in September: 36.1°F

The month with the highest average low temperature is July (43.2°F).
The coldest month (with the lowest average low temperature) is December (2.5°F).

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Average pressure in September
Silver Gate, MT

Average pressure in September - Silver Gate, MT
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Silver Gate, MT

Average wind speed in September - Silver Gate, MT
  • Average wind speed in September: 6.5mph

The windiest months (with the highest average wind speed) are February and June (7.3mph).
The calmest month (with the lowest average wind speed) is May (6mph).

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Average humidity in September
Silver Gate, MT

Average humidity in September - Silver Gate, MT
  • Average humidity in September: 57%

The months with the highest relative humidity are February and March (93%).
The months with the lowest relative humidity are July and August (51%).

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Average rainfall in September
Silver Gate, MT

Average rainfall in September - Silver Gate, MT
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is July (1.02").

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Average rainfall days in September
Silver Gate, MT

Average rainfall days in September - Silver Gate, MT
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (2.8 days).

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Average snowfall in September
Silver Gate, MT

Average snowfall in September - Silver Gate, MT
  • Average snowfall in September: 5.55"

The month with the highest snowfall is April (19.69").
The month with the least snowfall is July (0.24").

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Average snowfall days in September
Silver Gate, MT

Average snowfall days in September - Silver Gate, MT
  • Average snowfall days in September: 4.5 days

The month with the highest number of snowfall days is March (25.6 days).
The month with the least snowfall days is July (0.4 days).

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Average daylight in September /
Average sunshine in September
Silver Gate, MT

Average daylight in September / Average sunshine in September - Silver Gate, MT
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 34min).
The month with the shortest days is December (Average daylight: 8h and 50min).

  • Average sunshine in September: 10h and 6min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).

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Average sunshine days in September
Silver Gate, MT

Average sunshine days in September - Silver Gate, MT
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is May (3.1 days).

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Average UV index in September
Silver Gate, MT

Average UV index in September - Silver Gate, MT
  • 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
Silver Gate, MT

Average cloud cover in September - Silver Gate, MT
  • Average cloud cover in September: 21

The month with the most cloud cover is February (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 15).

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Average visibility in September
Silver Gate, MT

Average visibility in September - Silver Gate, MT
  • Average visibility in September: 6mi

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

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