September weather forecast
Hot Springs, MT

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Weather in September

September, the first month of the autumn in Hot Springs, is still a comfortable month, with an average temperature varying between 42.3°F (5.7°C) and 67.6°F (19.8°C).

Temperature

In September, the average high-temperature goes from a moderately hot 78.6°F (25.9°C) in August to a comfortable 67.6°F (19.8°C). During September nights, Hot Springs documents a marked contrast from daily highs, with an average temperature of 42.3°F (5.7°C).

Humidity

The average relative humidity in September in Hot Springs is 59%.

Rainfall

In Hot Springs, in September, during 10.7 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 160.2 rainfall days, and 18.11" (460mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, September through December. September is the first month it typically snows in Hot Springs. Throughout September, in the average 0.2 snowfall days, it receives 0.31" (8mm) of snow. In Hot Springs, during the entire year, snow falls for 99 days and aggregates up to 47.28" (1201mm) of snow.

Daylight

In September, the average length of the day is 12h and 33min.
On the first day of September in Hot Springs, Montana, sunrise is at 6:58 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 7:19 pm MDT.

Sunshine

In Hot Springs, the average sunshine in September is 9.4h.

UV index

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 during September translates into the following guidance:
Act with care - Obligation to protect against skin and eye damage is highlighted. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What are September temperatures in Hot Springs?

The high-temperature, in September, in Hot Springs, is 67.6°F (19.8°C), while the low-temperature averages to 42.3°F (5.7°C).

What is the average humidity in September in Hot Springs?

In Hot Springs, Montana, the average relative humidity in September is 59%.

How many days does it rain in September in Hot Springs?

In Hot Springs, during September, the rain falls for 10.7 days and regularly aggregates up to 0.94" (24mm) of precipitation.

When does it start snowing in Hot Springs?

September is the first month it typically snows in Hot Springs. Throughout September, in the average 0.2 snowfall days, it receives 0.31" (8mm) of snow.

How many hours of daylight does Hot Springs have in September?

In Hot Springs, the average day length in September is 12h and 33min.

When are sunrise and sunset in September in Hot Springs?

In September, on the first day of the month, sunrise is at 6:58 am and sunset at 8:18 pm. On the last day of the month, in Hot Springs, Montana, sunrise is at 7:37 am and sunset at 7:19 pm MDT.

How long on average sun shines in September in Hot Springs?

The average sunshine duration in September in Hot Springs is 9.4h.

What is the UV index intensity in September in Hot Springs?

In September, the average daily maximum UV index in Hot Springs, Montana, is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Hot Springs, MT

Average temperature in September - Hot Springs, MT
  • Average high temperature in September: 67.6°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.9°F).

  • Average low temperature in September: 42.3°F

The months with the highest average low temperature are July and August (48.9°F).
The coldest month (with the lowest average low temperature) is December (16.7°F).

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Average pressure in September
Hot Springs, MT

Average pressure in September - Hot Springs, MT
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in September
Hot Springs, MT

Average wind speed in September - Hot Springs, MT
  • Average wind speed in September: 3.9mph

The windiest month (with the highest average wind speed) is April (4.8mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).

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Average humidity in September
Hot Springs, MT

Average humidity in September - Hot Springs, MT
  • Average humidity in September: 59%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (51%).

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Average rainfall in September
Hot Springs, MT

Average rainfall in September - Hot Springs, MT
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is June (2.2").
The driest months (with the least rainfall) are July and August (0.55").

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Average rainfall days in September
Hot Springs, MT

Average rainfall days in September - Hot Springs, MT
  • Average rainfall days in September: 10.7 days

The months with the highest number of rainy days are March and April (18.8 days).
The month with the least rainy days is August (7 days).

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Average snowfall in September
Hot Springs, MT

Average snowfall in September - Hot Springs, MT
  • Average snowfall in September: 0.31"

The month with the highest snowfall is February (10.28").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Hot Springs, MT

Average snowfall days in September - Hot Springs, MT
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (19.8 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
Hot Springs, MT

Average daylight in September / Average sunshine in September - Hot Springs, MT
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

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Average sunshine days in September
Hot Springs, MT

Average sunshine days in September - Hot Springs, MT
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is July (21.3 days).
The month with the least sunshine days is March (6.4 days).

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Average UV index in September
Hot Springs, MT

Average UV index in September - Hot Springs, MT
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).

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Average cloud cover in September
Hot Springs, MT

Average cloud cover in September - Hot Springs, MT
  • Average cloud cover in September: 22

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 14).

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Average visibility in September
Hot Springs, MT

Average visibility in September - Hot Springs, MT
  • Average visibility in September: 6mi

The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February and December (4mi).

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Hot Springs, Montana, USA

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