August weather forecastCapitol, MT
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Capitol, Montana, with an average temperature ranging between max 82.9°F (28.3°C) and min 62.2°F (16.8°C).Temperature
With August's advent, Capitol sees an average high-temperature of a still moderately hot 82.9°F (28.3°C), subtly shifted from July's 85.1°F (29.5°C). August nights are marked by an average temperature drop to a comfortable 62.2°F (16.8°C).Heat index
In August, the average heat index is calculated to be 84.2°F (29°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
With an average relative humidity of 47%, August is the least humid month.Rainfall
In Capitol, Montana, during August, the rain falls for 10.4 days and regularly aggregates up to 1.3" (33mm) of precipitation. In Capitol, Montana, during the entire year, the rain falls for 103.8 days and collects up to 14.88" (378mm) of precipitation.Snowfall
June through September are months without snowfall in Capitol, Montana.Daylight
In August, the average length of the day in Capitol is 14h and 3min.On the first day of the month, sunrise is at 5:41 am and sunset at 8:23 pm. On the last day of August, sunrise is at 6:17 am and sunset at 7:35 pm MDT.
Sunshine
With an average of 11.5h of sunshine, August has the most sunshine of the year in Capitol.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Capitol. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 6 during August translates into the following directions:
Inhibit overexposure. Warding off sun damage is of utmost importance. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Capitol, MT
- Average high temperature in August: 82.9°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in August: 62.2°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in August
Capitol, MT
- Average pressure in August: 29.89"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in August
Capitol, MT
- Average wind speed in August: 9.9mph
The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).
Average humidity in August
Capitol, MT
- Average humidity in August: 47%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).
Average rainfall in August
Capitol, MT
- Average rainfall in August: 1.3"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in August
Capitol, MT
- Average rainfall days in August: 10.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in August
Capitol, MT
- Average snowfall in August: 0"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in August
Capitol, MT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in August /
Average sunshine in August
Capitol, MT
- Average daylight in August: 14h and 0min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in August: 11h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in August
Capitol, MT
- Average sunshine days in August: 17.5 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in August
Capitol, MT
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in August
Capitol, MT
- Average cloud cover in August: 18
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in August
Capitol, 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).
