September weather forecast
Buelow, MT

September

Weather in September

September, the first month of the autumn in Buelow, is also an agreeable month, with an average temperature fluctuating between 11.1°C and 21.2°C.

Temperature

Buelow in September demonstrates a small temperature transition, adjusting from an average high of a warm 27.3°C in August to a pleasant 21.2°C. Buelow records an average temperature drop to a fresh 11.1°C in September.

Humidity

The average relative humidity in September is 45%.

Rainfall

In Buelow, in September, it is raining for 8.6 days, with typically 25mm of accumulated precipitation. In Buelow, during the entire year, the rain falls for 113.8 days and collects up to 302mm of precipitation.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows in Buelow. Throughout September, in the average 0.5 snowfall days, it receives 17mm of snow. In Buelow, Montana, during the entire year, snow falls for 65.1 days and aggregates up to 627mm of snow.

Daylight

In September, the average length of the day is 12h and 34min.
On the first day of the month, sunrise is at 6:41 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:22 am and sunset at 7:03 pm MDT.

Sunshine

In Buelow, the average sunshine in September is 9.9h.

UV index

In Buelow, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 4 in September leads to these recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

What is the usual temperature for Buelow in September?
In September, in Buelow, the average high-temperature is 21.2°C, and the average low-temperature is 11.1°C. The average heat index (a.k.a. 'felt air temperature', 'feels like'), which factors the actual air temperature with the relative humidity, in July is evaluated at 28°C.
What is the average humidity in September?
In Buelow, the average relative humidity in September is 45%.
How much does it rain in September?
In Buelow, during September, the rain falls for 8.6 days and regularly aggregates up to 25mm of precipitation.
When does it start to snow?
September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 17mm of snow.
What is the average length of the day in September?
The average day length in September is 12h and 34min.
When is the sunrise / sunset in September?
On the first day of September, sunrise is at 6:41 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:03 pm MDT.
How long on average sun shines in September?
In Buelow, Montana, the average sunshine duration in September is 9.9h.
How high is the UV index in September?
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
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 - Buelow, MT
Average temperature in September
Buelow, MT
  • Average high temperature in September: 21.2°C

The warmest month (with the highest average high temperature) is July (27.8°C).
The month with the lowest average high temperature is December (-2.1°C).

  • Average low temperature in September: 11.1°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (-8.7°C).

Average pressure in September - Buelow, MT
Average pressure in September
Buelow, MT
  • Average pressure in September: 1013.8mbar

The month with the highest atmospheric pressure is January (1020.2mbar).
The month with the lowest atmospheric pressure is June (1010.9mbar).

Average wind speed in September - Buelow, MT
Average wind speed in September
Buelow, MT
  • Average wind speed in September: 15km/h

The windiest month (with the highest average wind speed) is April (17.4km/h).
The calmest month (with the lowest average wind speed) is August (13.6km/h).

Average humidity in September - Buelow, MT
Average humidity in September
Buelow, MT
  • Average humidity in September: 45%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (39%).

Average rainfall in September - Buelow, MT
Average rainfall in September
Buelow, MT
  • Average rainfall in September: 25mm

The wettest month (with the highest rainfall) is June (59mm).
The driest month (with the least rainfall) is December (15mm).

Average rainfall days in September - Buelow, MT
Average rainfall days in September
Buelow, MT
  • Average rainfall days in September: 8.6 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5 days).

Average snowfall in September - Buelow, MT
Average snowfall in September
Buelow, MT
  • Average snowfall in September: 17mm

The month with the highest snowfall is February (127mm).
The months with the least snowfall are June, July and August (0mm).

Average snowfall days in September - Buelow, MT
Average snowfall days in September
Buelow, MT
  • Average snowfall days in September: 0.5 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in September / Average sunshine in September - Buelow, MT
Average daylight in September /
Average sunshine in September
Buelow, 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: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 18min).

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

The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (11.7 days).

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

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

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

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 15).

Average visibility in September - Buelow, MT
Average visibility in September
Buelow, MT
  • Average visibility in September: 10km

The months with the highest visibility are May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, April, November and December (9km).

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