August weather forecastMusselshell, MT
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Musselshell, Montana, with an average temperature varying between 82.8°F (28.2°C) and 61.5°F (16.4°C).Temperature
At the onset of August, Musselshell records an average high-temperature of a still moderately hot 82.8°F (28.2°C), showing little deviation from the preceding month. In Musselshell, August is marked by an average low-temperature of 61.5°F (16.4°C).Humidity
August is the least humid month, with an average relative humidity of 39%.Rainfall
In Musselshell, in August, during 10.6 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Musselshell, during the entire year, the rain falls for 114.3 days and collects up to 12.13" (308mm) of precipitation.Snowfall
In Musselshell, Montana, snow does not fall in June through August.Daylight
In August, the average length of the day is 14h and 7min.On the first day of August, sunrise is at 5:54 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 6:32 am and sunset at 7:52 pm MDT.
Sunshine
In August, the average sunshine is 11.5h.UV index
In August, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 6 in August translates into the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Musselshell, MT
- Average high temperature in August: 82.8°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in August: 61.5°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).
Average pressure in August
Musselshell, MT
- Average pressure in August: 29.89"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
Musselshell, MT
- Average wind speed in August: 8.5mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in August
Musselshell, MT
- Average humidity in August: 39%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (39%).
Average rainfall in August
Musselshell, MT
- Average rainfall in August: 0.98"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in August
Musselshell, MT
- Average rainfall days in August: 10.6 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in August
Musselshell, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Musselshell, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Musselshell, MT
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in August: 11h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in August
Musselshell, MT
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in August
Musselshell, MT
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in August
Musselshell, MT
- Average cloud cover in August: 16
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in August
Musselshell, 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).





