October weather forecast
Sidney, MT

Weather in October

October, like September, in Sidney, Montana, is a cool autumn month, with temperature in the range of an average high of 55°F (12.8°C) and an average low of 39.9°F (4.4°C).

Temperature

In October, the average high-temperature plummets, from a pleasant 72.3°F (22.4°C) in September, to a fresh 55°F (12.8°C). In October, the average low-temperature is 39.9°F (4.4°C).

Humidity

In Sidney, the average relative humidity is 59%.

Rainfall

In October, the rain falls for 6.5 days. Throughout October, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 85.7 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Sidney, Montana, are January through May, October through December. October is the first month it typically snows in Sidney. Throughout October, in the average 2.4 snowfall days, it receives 0.31" (8mm) of snow. In Sidney, Montana, during the entire year, snow falls for 56.1 days, and aggregates up to 8.94" (227mm) of snow.

Daylight

In Sidney, the average length of the day is 10.8h.

Sunshine

The average sunshine in October is 6.2h.

UV index

The average daily maximum UV index in Sidney is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 2 transform into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 October in Sidney?

The average relative humidity in October is 59%.

How much does it rain in Sidney in October?

In Sidney, Montana, in October, it is raining for 6.5 days, with typically 0.51" (13mm) of accumulated precipitation.

When does it start to snow in Sidney?

October is the first month it typically snows. Throughout October, in the average 2.4 snowfall days, it receives 0.31" (8mm) of snow.

How many hours of daylight does Sidney have in October?

The average length of the day in October is 10.8h.

How many hours of sunshine does Sidney have in October?

In October, the average sunshine in Sidney is 6.2h.

What is the UV index intensity in October in Sidney?

The average daily maximum UV index in October in Sidney is 2. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to the UV radiation.

Average temperature in October
Sidney, MT

Average temperature in October - Sidney, MT
  • Average high temperature in October: 12.8°C

The warmest month (with the highest average high temperature) is July (29°C).
The month with the lowest average high temperature is January (-4.8°C).

  • Average low temperature in October: 4.4°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (-12.3°C).

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Average pressure in October
Sidney, MT

Average pressure in October - Sidney, MT
  • Average pressure in October: 1014.9mbar

The month with the highest atmospheric pressure is February (1021.5mbar).
The month with the lowest atmospheric pressure is June (1010.3mbar).

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Average wind speed in October
Sidney, MT

Average wind speed in October - Sidney, MT
  • Average wind speed in October: 17.8km/h

The windiest month (with the highest average wind speed) is April (17.9km/h).
The calmest month (with the lowest average wind speed) is February (14.8km/h).

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Average humidity in October
Sidney, MT

Average humidity in October - Sidney, MT
  • Average humidity in October: 59%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (45%).

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Average rainfall in October
Sidney, MT

Average rainfall in October - Sidney, MT
  • Average rainfall in October: 13mm

The wettest month (with the highest rainfall) is July (34mm).
The driest month (with the least rainfall) is January (6mm).

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Average rainfall days in October
Sidney, MT

Average rainfall days in October - Sidney, MT
  • Average rainfall days in October: 6.5 days

The month with the highest number of rainy days is June (11.4 days).
The months with the least rainy days are January and February (3.2 days).

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Average snowfall in October
Sidney, MT

Average snowfall in October - Sidney, MT
  • Average snowfall in October: 8mm

The month with the highest snowfall is February (45mm).
The months with the least snowfall are June, July, August and September (0mm).

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Average snowfall days in October
Sidney, MT

Average snowfall days in October - Sidney, MT
  • Average snowfall days in October: 2.4 days

The month with the highest number of snowfall days is February (12 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Sidney, MT

Average daylight in October / Average sunshine in October - Sidney, MT
  • Average daylight in October: 10.8h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in October: 6.2h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 4.3h).

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Average sunshine days in October
Sidney, MT

Average sunshine days in October - Sidney, MT
  • Average sunshine days in October: 20.5 days

The month with the most sunshine days is September (20.7 days).
The month with the least sunshine days is April (15.8 days).

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Average UV index in October
Sidney, MT

Average UV index in October - Sidney, MT
  • Average UV index in October: 2

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and February (UV index 1).

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Average cloud cover in October
Sidney, MT

Average cloud cover in October - Sidney, MT
  • Average cloud cover in October: 34

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 18).

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Average visibility in October
Sidney, MT

Average visibility in October - Sidney, MT
  • Average visibility in October: 10km

The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).

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