August weather forecastFort Benton, MT
August
Weather in August
August, the last month of the summer in Fort Benton, is also a moderately hot month, with an average temperature fluctuating between 60.4°F (15.8°C) and 81.9°F (27.7°C).Temperature
The commencement of August introduces an average high-temperature of a still moderately hot 81.9°F (27.7°C), closely mirroring the preceding month. Fort Benton observes an average nighttime low-temperature of 60.4°F (15.8°C) during the month of August.Humidity
With an average relative humidity of 39%, August is the least humid month.Rainfall
In Fort Benton, in August, it is raining for 8.9 days, with typically 0.87" (22mm) of accumulated precipitation. In Fort Benton, Montana, during the entire year, the rain falls for 119.1 days and collects up to 13.43" (341mm) of precipitation.Snowfall
June through August are months without snowfall.Daylight
The average length of the day in August is 14h and 13min.On the first day of August, sunrise is at 6:00 am and sunset at 8:57 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 8:04 pm MDT.
Sunshine
In August, the average sunshine is 11.6h.UV index
In Fort Benton, Montana, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 5 during August, leads to the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Fort Benton, MT
- Average high temperature in August: 81.9°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 August: 60.4°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 August
Fort Benton, MT
- Average pressure in August: 29.9"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 August
Fort Benton, MT
- Average wind speed in August: 8.1mph
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 August
Fort Benton, MT
- Average humidity in August: 39%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is August (39%).
Average rainfall in August
Fort Benton, MT
- Average rainfall in August: 0.87"
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 August
Fort Benton, MT
- Average rainfall days in August: 8.9 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 August
Fort Benton, MT
- Average snowfall in August: 0"
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 August
Fort Benton, MT
- Average snowfall days in August: 0 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 August /
Average sunshine in August
Fort Benton, MT
- Average daylight in August: 14h and 12min
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 August: 11h and 36min
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 August
Fort Benton, MT
- Average sunshine days in August: 18.5 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 August
Fort Benton, MT
- Average UV index in August: 5
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 August
Fort Benton, MT
- Average cloud cover in August: 16
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 August
Fort Benton, MT
- Average visibility in August: 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).





