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
Fort Benton's September weather shows a moderate shift in high-temperatures, falling from August's moderately hot 81.9°F (27.7°C) to a pleasant 70.7°F (21.5°C). Fort Benton records a steady low-temperature average of 52.2°F (11.2°C) during September.Humidity
The average relative humidity in September is 46%.Rainfall
In September, in Fort Benton, the rain falls for 9.4 days. Throughout September, 1.14" (29mm) of precipitation is accumulated. In Fort Benton, during the entire year, the rain falls for 119.1 days and collects up to 13.43" (341mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. September is the first month it typically snows in Fort Benton. Throughout September, in the average 0.4 snowfall days, it receives 0.94" (24mm) of snow. In Fort Benton, Montana, during the entire year, snow falls for 58.3 days and aggregates up to 29.37" (746mm) of snow.Daylight
In September, the average length of the day in Fort Benton is 12h and 33min.On the first day of September, sunrise is at 6:42 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:03 pm MDT.
Sunshine
In September, the average sunshine is 9.9h.UV index
In Fort Benton, Montana, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 4 during September translates into these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
What is the average September temperature in Fort Benton?
What is the average humidity in September in Fort Benton?
How many days does it rain in September in Fort Benton?
When does it start to snow in Fort Benton?
What is the average length of the day in September in Fort Benton?
When are sunrise and sunset in September in Fort Benton?
How long on average sun shines in September in Fort Benton?
What is the UV index reading in September in Fort Benton?
Average temperature in September
Fort Benton, MT
- Average high temperature in September: 70.7°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is August (60.4°F).
The coldest month (with the lowest average low temperature) is February (18.1°F).
Average pressure in September
Fort Benton, MT
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Fort Benton, MT
- Average wind speed in September: 8.9mph
The windiest months (with the highest average wind speed) are January and November (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in September
Fort Benton, MT
- Average humidity in September: 46%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (39%).
Average rainfall in September
Fort Benton, MT
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is December (0.67").
Average rainfall days in September
Fort Benton, MT
- Average rainfall days in September: 9.4 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in September
Fort Benton, MT
- Average snowfall in September: 0.94"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Fort Benton, MT
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is February (12.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Fort Benton, MT
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- 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, February and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Fort Benton, MT
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in September
Fort Benton, MT
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Fort Benton, MT
- Average cloud cover in September: 23
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in September
Fort Benton, MT
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Fort Benton, Montana, USA
Weather forecast for your location
2. Allow the app to use your location
