September weather forecast
Jordan Crossing, MT

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Weather in September

The first month of the autumn, September, is also an agreeable month in Jordan Crossing, Montana, with an average temperature ranging between min 53.2°F (11.8°C) and max 71.1°F (21.7°C).

Temperature

In the transition to September, Jordan Crossing observes a drop in the average high-temperature, moving from a moderately hot 82.8°F (28.2°C) in August to a pleasant 71.1°F (21.7°C). In Jordan Crossing, the expected average low-temperature for September is a fresh 53.2°F (11.8°C).

Humidity

In Jordan Crossing, the average relative humidity in September is 46%.

Rainfall

In Jordan Crossing, in September, during 8.1 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, 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

The average length of the day in September in Jordan Crossing, Montana, is 12h and 34min.
On the first day of the month, sunrise is at 6:27 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:49 pm MDT.

Sunshine

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

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Stay sun-safe with clothing that is both closely woven and worn loosely. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
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Frequently asked questions

What are the temperatures in Jordan Crossing in September?

The high-temperature, in September, in Jordan Crossing, is 71.1°F (21.7°C), while the low-temperature averages to 53.2°F (11.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 82.4°F (28°C).

What is the average humidity in September in Jordan Crossing?

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

How much does it rain in Jordan Crossing in September?

In Jordan Crossing, Montana, in September, during 8.1 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

When it does not snow in Jordan Crossing?

June through September are months without snowfall in Jordan Crossing, Montana.

Does it snow in Jordan Crossing in September?

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

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

In Jordan Crossing, the average day length in September is 12h and 34min.

When is the sunrise / sunset in September in Jordan Crossing?

In September, on the first day of the month, sunrise is at 6:27 am and sunset at 7:50 pm. On the last day of the month, in Jordan Crossing, Montana, sunrise is at 7:08 am and sunset at 6:49 pm MDT.

How many hours of sunshine does Jordan Crossing have in September?

The average sunshine duration in September in Jordan Crossing, Montana, is 9.8h.

How high is the UV index in September in Jordan Crossing?

In Jordan Crossing, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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"Hg

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

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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").
The 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).
The 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: 12h and 4min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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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).
The 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).
The 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

The 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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Jordan Crossing, Montana, USA

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