September weather forecast
Wisdom, MT

Weather in September

The first month of the autumn, September, is also an enjoyable month in Wisdom, Montana, with an average temperature fluctuating between 39.4°F (4.1°C) and 66.2°F (19°C).

Temperature

In September, the average high-temperature drops from a warm 75.9°F (24.4°C) in August to a comfortable 66.2°F (19°C). In September, the average low-temperature is 39.4°F (4.1°C).

Humidity

In Wisdom, Montana, the average relative humidity in September is 55%.

Rainfall

In Wisdom, during September, the rain falls for 7.4 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, there are 93.6 rainfall days, and 15.43" (392mm) of precipitation is accumulated.

Snowfall

January through December are months with snowfall. In Wisdom, in September, snow falls for 2.2 days, with typically accumulated 1.42" (36mm) of snow. In Wisdom, during the entire year, snow falls for 129.3 days and aggregates up to 94.92" (2411mm) of snow.

Daylight

In Wisdom, the average length of the day in September is 12h and 31min.
On the first day of September, sunrise is at 6:55 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:16 pm MDT.

Sunshine

The average sunshine in September in Wisdom is 9.6h.

UV index

In Wisdom, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in September in Wisdom?

In September, the average relative humidity in Wisdom, Montana, is 55%.

How much does it rain in Wisdom in September?

In Wisdom, during September, the rain falls for 7.4 days and regularly aggregates up to 0.71" (18mm) of precipitation.

How many days does it snow in September in Wisdom?

In Wisdom, Montana, in September, snow falls for 2.2 days, with typically accumulated 1.42" (36mm) of snow.

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

In September, the average day length is 12h and 31min.

When are sunrise and sunset in September in Wisdom?

On the first day of September in Wisdom, sunrise is at 6:55 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:16 pm MDT.

How many hours of sunshine does Wisdom have in September?

The average sunshine duration in September is 9.6h.

What is the UV index intensity in September in Wisdom?

In Wisdom, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.

Average temperature in September
Wisdom, MT

Average temperature in September - Wisdom, MT
  • Average high temperature in September: 66.2°F

The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is December (24.1°F).

  • Average low temperature in September: 39.4°F

The month with the highest average low temperature is August (45.3°F).
The coldest month (with the lowest average low temperature) is December (9.5°F).

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Average pressure in September
Wisdom, MT

Average pressure in September - Wisdom, MT
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Wisdom, MT

Average wind speed in September - Wisdom, MT
  • Average wind speed in September: 4.3mph

The windiest month (with the highest average wind speed) is November (5.2mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).

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Average humidity in September
Wisdom, MT

Average humidity in September - Wisdom, MT
  • Average humidity in September: 55%

The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in September
Wisdom, MT

Average rainfall in September - Wisdom, MT
  • Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is April (1.81").
The driest month (with the least rainfall) is August (0.39").

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Average rainfall days in September
Wisdom, MT

Average rainfall days in September - Wisdom, MT
  • Average rainfall days in September: 7.4 days

The month with the highest number of rainy days is June (11.7 days).
The months with the least rainy days are January, August and December (5.2 days).

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Average snowfall in September
Wisdom, MT

Average snowfall in September - Wisdom, MT
  • Average snowfall in September: 1.42"

The month with the highest snowfall is February (14.8").
The month with the least snowfall is July (0.12").

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Average snowfall days in September
Wisdom, MT

Average snowfall days in September - Wisdom, MT
  • Average snowfall days in September: 2.2 days

The month with the highest number of snowfall days is March (20.3 days).
The month with the least snowfall days is July (0.2 days).

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

Average daylight in September / Average sunshine in September - Wisdom, MT
  • Average daylight in September: 12h and 31min

The month with the longest days is June (Average daylight: 15h and 38min).
The month with the shortest days is December (Average daylight: 8h and 46min).

  • Average sunshine in September: 9.6h

The month with the most sunshine is July (Average sunshine: 11.9h).
The months with the least sunshine are January and December (Average sunshine: 5.1).

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Average sunshine days in September
Wisdom, MT

Average sunshine days in September - Wisdom, MT
  • Average sunshine days in September: 19.5 days

The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is March (8.8 days).

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Average UV index in September
Wisdom, MT

Average UV index in September - Wisdom, MT
  • Average UV index in September: 3

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

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Average cloud cover in September
Wisdom, MT

Average cloud cover in September - Wisdom, MT
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in September
Wisdom, MT

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

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

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