September weather forecast and climate
Moore, MT

Weather in September

September, the first month of the autumn, in Moore, is still a comfortable month, with temperature in the range of an average low of 47.1°F (8.4°C) and an average high of 67.5°F (19.7°C).

Temperature

In September, the average high-temperature drops, from a warm 78.1°F (25.6°C) in August, to an enjoyable 67.5°F (19.7°C). The average low-temperature, is 47.1°F (8.4°C).

Humidity

The average relative humidity in Moore is 52%.

Rainfall

In Moore, during September, the rain falls for 8.7 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Moore, during the entire year, the rain falls for 126.2 days and collects up to 17.83" (453mm) of precipitation.

Snowfall

Months with snowfall are January through June, September through December. September is the first month it typically snows in Moore. Throughout September, in the average 1 snowfall days, it receives 1.3" (33mm) of snow. Throughout the year, there are 83.4 snowfall days, and 45.51" (1156mm) of snow is accumulated.

Daylight

In September, the average length of the day in Moore is 12.5h.

Sunshine

In September, the average sunshine in Moore, Montana, is 10h.

UV index

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in September in Moore?

In Moore, in September, the average high-temperature is 67.5°F (19.7°C), and the average low-temperature is 47.1°F (8.4°C).

What is the average humidity in September in Moore?

In September, the average relative humidity in Moore is 52%.

How many days does it rain in September in Moore?

In Moore, Montana, during September, the rain falls for 8.7 days and regularly aggregates up to 1.02" (26mm) of precipitation.

When does it start snowing in Moore?

September is the first month it typically snows in Moore, Montana. Throughout September, in the average 1 snowfall days, it receives 1.3" (33mm) of snow.

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

In September, the average length of the day in Moore is 12.5h.

How many hours of sunshine does Moore have in September?

In Moore, the average sunshine in September is 10h.

What is the UV index reading in September in Moore?

In Moore, Montana, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Moore, MT

Average temperature in September - Moore, MT
  • Average high temperature in September: 67.5°F

The warmest month (with the highest average high temperature) is July (78.8°F).
Months with the lowest average high temperature are February and December (29.1°F).

  • Average low temperature in September: 47.1°F

The month with the highest average low temperature is August (54.5°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).

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Average pressure in September
Moore, MT

Average pressure in September - Moore, MT
  • Average pressure in September: 29.94"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in September
Moore, MT

Average wind speed in September - Moore, MT
  • Average wind speed in September: 8.5mph

The windiest months (with the highest average wind speed) are January, April and October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

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Average humidity in September
Moore, MT

Average humidity in September - Moore, MT
  • Average humidity in September: 52%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is August (47%).

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Average rainfall in September
Moore, MT

Average rainfall in September - Moore, MT
  • Average rainfall in September: 1.02"

The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (0.71").

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Average rainfall days in September
Moore, MT

Average rainfall days in September - Moore, MT
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in September
Moore, MT

Average snowfall in September - Moore, MT
  • Average snowfall in September: 1.3"

The month with the highest snowfall is April (9.13").
Months with the least snowfall are July and August (0").

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Average snowfall days in September
Moore, MT

Average snowfall days in September - Moore, MT
  • Average snowfall days in September: 1 days

The month with the highest number of snowfall days is February (15.2 days).
Months with the least snowfall days are July and August (0 days).

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Average daylight in September /
Average sunshine in September
Moore, MT

Average daylight in September / Average sunshine in September - Moore, MT
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in September: 10h

The month with the most sunshine is July (Average sunshine: 11.8h).
The month with the least sunshine is February (Average sunshine: 5.5h).

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Average sunshine days in September
Moore, MT

Average sunshine days in September - Moore, MT
  • Average sunshine days in September: 19.3 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (8.3 days).

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Average UV index in September
Moore, MT

Average UV index in September - Moore, MT
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

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Average cloud cover in September
Moore, MT

Average cloud cover in September - Moore, MT
  • Average cloud cover in September: 23

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 16).

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Average visibility in September
Moore, MT

Average visibility in September - Moore, MT
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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