August weather forecastHeart Butte, MT
August
Weather in August
August, the last month of the summer in Heart Butte, is also a moderately hot month, with an average temperature varying between 78.1°F (25.6°C) and 55.2°F (12.9°C).Temperature
The average high-temperature in August, at a still moderately hot 78.1°F (25.6°C), reveals a modest deviation from July's 78.8°F (26°C). Heart Butte's August nights see a large temperature deviation, with temperatures resting at a low of 55.2°F (12.9°C).Humidity
With an average relative humidity of 43%, August is the least humid month.Rainfall
In Heart Butte, in August, during 5.8 rainfall days, 0.47" (12mm) of precipitation is typically accumulated. In Heart Butte, Montana, during the entire year, the rain falls for 70.4 days and collects up to 8.46" (215mm) of precipitation.Snowfall
In Heart Butte, snow does not fall in June through August.Daylight
In Heart Butte, the average length of the day in August is 14h and 16min.On the first day of August, sunrise is at 6:07 am and sunset at 9:07 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 8:14 pm MDT.
Sunshine
The average sunshine in August is 11.4h.UV index
In Heart Butte, Montana, the average daily maximum UV index in August is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 5 in August translates into these instructions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Heart Butte, MT
- Average high temperature in August: 78.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in August: 55.2°F
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (15.3°F).
Average pressure in August
Heart Butte, MT
- Average pressure in August: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in August
Heart Butte, MT
- Average wind speed in August: 8.8mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).
Average humidity in August
Heart Butte, MT
- Average humidity in August: 43%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (43%).
Average rainfall in August
Heart Butte, MT
- Average rainfall in August: 0.47"
The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in August
Heart Butte, MT
- Average rainfall days in August: 5.8 days
The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is November (2.6 days).
Average snowfall in August
Heart Butte, MT
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days in August
Heart Butte, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is December (10.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in August /
Average sunshine in August
Heart Butte, MT
- Average daylight in August: 14h and 18min
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 24min).
- Average sunshine in August: 11h and 24min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in August
Heart Butte, MT
- Average sunshine days in August: 23.3 days
The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is April (17.4 days).
Average UV index in August
Heart Butte, MT
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in August
Heart Butte, MT
- Average cloud cover in August: 16
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in August
Heart Butte, 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).
