September weather forecast and climate
Kremlin, MT

The first month of the autumn, September, is still a pleasant month in Kremlin, Montana, with average temperature varying between 52.5°F (11.4°C) and 70.5°F (21.4°C).

Temperature

In September, the average high-temperature decreases, from a moderately hot 81.3°F (27.4°C) in August, to an agreeable 70.5°F (21.4°C). The average low-temperature, in September, is 52.5°F (11.4°C).

Humidity

In Kremlin, the average relative humidity in September is 45%.

Rainfall

In Kremlin, it is raining for 7.6 days, with typically 0.63" (16mm) of accumulated precipitation. In Kremlin, during the entire year, the rain falls for 98.7 days and collects up to 8.23" (209mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, in Kremlin, there are 53.5 snowfall days, and 14.25" (362mm) of snow is accumulated.

Daylight

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

Sunshine

In September, the average sunshine is 10.1h.

UV index

The average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 4 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. 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. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in September in Kremlin?

In September, in Kremlin, the average high-temperature is 70.5°F (21.4°C), and the average low-temperature is 52.5°F (11.4°C).

What is the average humidity in September in Kremlin?

In September, the average relative humidity in Kremlin is 45%.

How much does it rain in Kremlin in September?

In Kremlin, in September, during 7.6 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

When does it start to snow in Kremlin?

September is the first month it typically snows in Kremlin. Throughout September, in the average 0.2 snowfall days, it receives 0.51" (13mm) of snow.

How many hours of daylight does Kremlin have in September?

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

How long on average sun shines in September in Kremlin?

In September, the average sunshine is 10.1h.

How high is the UV index in September in Kremlin?

In Kremlin, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.
Average temperature in September - Kremlin, MT
  • Average high temperature in September: 21.4°C

The warmest month (with the highest average high temperature) is July (28.2°C).
Months with the lowest average high temperature are January and December (-2.7°C).

  • Average low temperature in September: 11.4°C

The month with the highest average low temperature is August (16.3°C).
The coldest month (with the lowest average low temperature) is February (-10.3°C).

Average pressure in September - Kremlin, MT
  • Average pressure in September: 1013.4mbar

Months with the highest atmospheric pressure are January and February (1020mbar).
The month with the lowest atmospheric pressure is June (1010.4mbar).

Average wind speed in September - Kremlin, MT
  • Average wind speed in September: 14.5km/h

The windiest month (with the highest average wind speed) is April (17km/h).
The calmest month (with the lowest average wind speed) is August (13.7km/h).

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

The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (40%).

Average rainfall in September - Kremlin, MT
  • Average rainfall in September: 16mm

The wettest month (with the highest rainfall) is June (38mm).
The driest month (with the least rainfall) is December (8mm).

Average rainfall days in September - Kremlin, MT
  • Average rainfall days in September: 7.6 days

The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (4 days).

Average snowfall in September - Kremlin, MT
  • Average snowfall in September: 13mm

The month with the highest snowfall is February (69mm).
Months with the least snowfall are June, July and August (0mm).

Average snowfall days in September - Kremlin, MT
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is February (11 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight in September / Average sunshine in September - Kremlin, 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: 10.1h

The month with the most sunshine is July (Average sunshine: 12h).
The month with the least sunshine is February (Average sunshine: 5.3h).

Average sunshine days in September - Kremlin, MT
  • Average sunshine days in September: 20.3 days

The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is April (12.8 days).

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

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

Average cloud cover in September - Kremlin, MT
  • Average cloud cover in September: 22

The month with the most cloud cover is February (Cloud cover 46).
Months with the least cloud cover are July and August (Cloud cover 16).

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

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