Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The shift from August to September involves a decrease in the average high-temperature, from a moderately hot 81.3°F (27.4°C) to an agreeable 70°F (21.1°C). The average nighttime temperature lowers to a fresh 52.3°F (11.3°C) throughout September.Humidity
In Four Buttes, Montana, the average relative humidity in September is 50%.Rainfall
In Four Buttes, Montana, in September, it is raining for 8.6 days, with typically 1.5" (38mm) of accumulated precipitation. Throughout the year, in Four Buttes, Montana, there are 93.3 rainfall days, and 12.01" (305mm) of precipitation is accumulated.Snowfall
In Four Buttes, Montana, snow does not fall in June through September.Daylight
In Four Buttes, Montana, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:43 pm. On the last day of September, in Four Buttes, sunrise is at 7:01 am and sunset at 6:42 pm MDT.
Sunshine
In Four Buttes, Montana, the average sunshine in September is 9.9h.UV index
In Four Buttes, Montana, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
What is the temperature in September in Four Buttes?
What is the average humidity in September in Four Buttes?
How many days does it rain in September in Four Buttes?
When it does not snow in Four Buttes?
Does it snow in Four Buttes in September?
What is the average length of the day in September in Four Buttes?
When is the sunrise / sunset in September in Four Buttes?
How long on average sun shines in September in Four Buttes?
How high is the UV index in September in Four Buttes?
Average temperature in September
Four Buttes, MT
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is February (19.8°F).
- Average low temperature in September: 52.3°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (6.3°F).
Average pressure in September
Four Buttes, MT
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Four Buttes, MT
- Average wind speed in September: 10.2mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is February (9.2mph).
Average humidity in September
Four Buttes, MT
- Average humidity in September: 50%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Four Buttes, MT
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is June (2.17").
The driest month (with the least rainfall) is February (0.47").
Average rainfall days in September
Four Buttes, MT
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is June (13.9 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Four Buttes, MT
- Average snowfall in September: 0"
The month with the highest snowfall is November (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Four Buttes, MT
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Four Buttes, 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 18min).
- 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: 3h and 54min).
Average sunshine days in September
Four Buttes, MT
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is August (20.1 days).
The months with the least sunshine days are February and June (13.8 days).
Average UV index in September
Four Buttes, MT
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Four Buttes, MT
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 19).
Average visibility in September
Four Buttes, MT
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Four Buttes, Montana, USA
Weather forecast for your location
2. Allow the app to use your location
