August weather forecastBighorn, MT
August
Weather in August
The last month of the summer, August, is another warm month in Bighorn, Montana, with an average temperature fluctuating between 84.6°F (29.2°C) and 63.1°F (17.3°C).Temperature
Shifting into August, Bighorn records an average high-temperature of a moderately hot 84.6°F (29.2°C), presenting minor fluctuations compared to the previous month. In the month of August, the average temperature dips to a refreshing 63.1°F (17.3°C) during the night.Humidity
With an average relative humidity of 38%, August is the least humid month in Bighorn, Montana.Rainfall
In August, the rain falls for 10.4 days. Throughout August, 0.98" (25mm) of precipitation is accumulated. In Bighorn, Montana, during the entire year, the rain falls for 99.5 days and collects up to 11.06" (281mm) of precipitation.Snowfall
In Bighorn, snow does not fall in June through August.Daylight
In Bighorn, the average length of the day in August is 14h and 6min.On the first day of August, sunrise is at 5:52 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 6:30 am and sunset at 7:49 pm MDT.
Sunshine
The average sunshine in August is 11.7h.UV index
The average daily maximum UV index in August in Bighorn is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Bighorn, MT
- Average high temperature in August: 84.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The months with the lowest average high temperature are January and December (30.9°F).
- Average low temperature in August: 63.1°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in August
Bighorn, 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 (29.84"Hg).
Average wind speed in August
Bighorn, MT
- Average wind speed in August: 8.3mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).
Average humidity in August
Bighorn, MT
- Average humidity in August: 38%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in August
Bighorn, MT
- Average rainfall in August: 0.98"
The wettest month (with the highest rainfall) is May (1.81").
The driest months (with the least rainfall) are January, November and December (0.47").
Average rainfall days in August
Bighorn, MT
- Average rainfall days in August: 10.4 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in August
Bighorn, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Bighorn, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Bighorn, MT
- Average daylight in August: 14h and 6min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in August: 11h and 42min
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 18min).
Average sunshine days in August
Bighorn, MT
- Average sunshine days in August: 16.5 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is April (14.2 days).
Average UV index in August
Bighorn, 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
Bighorn, MT
- Average cloud cover in August: 15
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in August
Bighorn, 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).





