September weather forecast and climate
Jordan Crossing, MT

Weather in September

September, the first month of the autumn, in Jordan Crossing, is also an agreeable month, with temperature in the range of an average high of 71.1°F (21.7°C) and an average low of 53.2°F (11.8°C).

Temperature

In September, the average high-temperature drops, from a warm 82.8°F (28.2°C) in August, to an agreeable 71.1°F (21.7°C). In Jordan Crossing, Montana, the average low-temperature is 53.2°F (11.8°C).

Humidity

The average relative humidity in Jordan Crossing is 46%.

Rainfall

In Jordan Crossing, Montana, during September, the rain falls for 8.1 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, in Jordan Crossing, Montana, there are 91.8 rainfall days, and 10.63" (270mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Jordan Crossing.

Daylight

In September, the average length of the day is 12.6h.

Sunshine

In September, the average sunshine is 9.8h.

UV index

In September, the average daily maximum UV index in Jordan Crossing, Montana, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. 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 temperature in September in Jordan Crossing?

In Jordan Crossing, in September, the average high-temperature is 71.1°F (21.7°C), and the average low-temperature is 53.2°F (11.8°C).

What is the average humidity in September in Jordan Crossing?

The average relative humidity in September in Jordan Crossing is 46%.

How many days does it rain in September in Jordan Crossing?

In Jordan Crossing, in September, it is raining for 8.1 days, with typically 1.1" (28mm) of accumulated precipitation.

Does it snow in Jordan Crossing in September?

In Jordan Crossing, Montana, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Jordan Crossing?

In Jordan Crossing snow does not fall in June through September.

What is the average length of the day in September in Jordan Crossing?

The average length of the day in September is 12.6h.

How long on average sun shines in September in Jordan Crossing?

In September, the average sunshine in Jordan Crossing is 9.8h.

What is the UV index reading in September in Jordan Crossing?

The average daily maximum UV index in September in Jordan Crossing, Montana, is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in September
Jordan Crossing, MT

Average temperature in September - Jordan Crossing, MT
  • Average high temperature in September: 71.1°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is February (24.4°F).

  • Average low temperature in September: 53.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is February (10°F).

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Average pressure in September
Jordan Crossing, MT

Average pressure in September - Jordan Crossing, MT
  • Average pressure in September: 29.92"

The month with the highest atmospheric pressure is February (30.15").
The month with the lowest atmospheric pressure is June (29.83").

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Average wind speed in September
Jordan Crossing, MT

Average wind speed in September - Jordan Crossing, MT
  • Average wind speed in September: 10mph

The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is February (8.3mph).

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Average humidity in September
Jordan Crossing, MT

Average humidity in September - Jordan Crossing, MT
  • Average humidity in September: 46%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (41%).

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Average rainfall in September
Jordan Crossing, MT

Average rainfall in September - Jordan Crossing, MT
  • Average rainfall in September: 1.1"

The wettest month (with the highest rainfall) is May (1.73").
The driest month (with the least rainfall) is February (0.43").

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Average rainfall days in September
Jordan Crossing, MT

Average rainfall days in September - Jordan Crossing, MT
  • Average rainfall days in September: 8.1 days

The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in September
Jordan Crossing, MT

Average snowfall in September - Jordan Crossing, MT
  • Average snowfall in September: 0"

The month with the highest snowfall is December (3.43").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Jordan Crossing, MT

Average snowfall days in September - Jordan Crossing, MT
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is January (12.3 days).
Months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Jordan Crossing, MT

Average daylight in September / Average sunshine in September - Jordan Crossing, MT
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 16.1h).
The month with the shortest days is December (Average daylight: 8.4h).

  • Average sunshine in September: 9.8h

The month with the most sunshine is July (Average sunshine: 11.7h).
The month with the least sunshine is February (Average sunshine: 4.6h).

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Average sunshine days in September
Jordan Crossing, MT

Average sunshine days in September - Jordan Crossing, MT
  • Average sunshine days in September: 20.6 days

The month with the most sunshine days is October (21 days).
The month with the least sunshine days is April (15.4 days).

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Average UV index in September
Jordan Crossing, MT

Average UV index in September - Jordan Crossing, MT
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 7).
Months with the lowest UV index are January, February, March, October, November and December (UV index 2).

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Average cloud cover in September
Jordan Crossing, MT

Average cloud cover in September - Jordan Crossing, MT
  • Average cloud cover in September: 26

The month with the most cloud cover is February (Cloud cover 50).
Months with the least cloud cover are July and August (Cloud cover 18).

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Average visibility in September
Jordan Crossing, MT

Average visibility in September - Jordan Crossing, MT
  • Average visibility in September: 6mi

Months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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